Lab #: 8: Plant Responses to Stimuli (Plant Hormones), Part I. Plants & Civilization Spring 2009
|
|
- Cory Bond
- 7 years ago
- Views:
Transcription
1 Lab #: 8: Plant Responses to Stimuli (Plant Hormones), Part I Plants & Civilization Spring 2009
2 Plant Growth & Development Depends on many factors including: Light Temperature Gravity Night length Various other external factors Hormone production
3 Plant Hormones Organic molecules that coordinate growth and development in plants. Synthesized in one part of the plant & translocated (moved) to another part. Active in small amounts Hormones cause a physiological response in the plant.
4 5 Groups of Plant Hormones 1. Auxins 2. Gibberellins 3. Cytokinins 4. Abscisic acid 5. Ethylene The effects of these hormones can be inhibitory or stimulatory, depending on [conc], tissue affected, & development status of the tissue.
5 Auxins & Gibberellins Today: you will set-up an experiment in which you treat plants with an auxin or a gibberellin to determine the effects of each on plant growth & development. We will not be studying the effects of other plant hormones during the scope of this lab.
6 AUXINS Example: indole-3-acetic acid (IAA) Occur naturally in several different chemical forms Synthesized in: buds of young stems & leaves (e.g. apical bud) embyros seeds fruits
7 AUXINS Once IAA is synthesized in a bud, it is translocated to the base of the plant (highest [conc] remaining in the growing tips, less in roots). IAA causes lengthening of cells in the elongation region of a growing shoot/stem - just behind apical meristem.
8 AUXINS However, if [IAA] increases beyond an optimum level, lengthening of the stem is inhibited rather than stimulated!!! IAA produced in the apical bud of a growing shoot/stem also suppresses the development of lateral/axillary buds.
9 Plants Producing Auxin Result: plant exhibits apical dominance Plant appears to grow upwards rather than outwards (gets taller, but minimal lateral branches are produced). Plants may appear scrawny due to lack of fullness in lateral branches. What do you think will happen if the apical bud (where IAA is produced) is removed?
10 Today s s Experiment #1: (work in groups of 4) Obtain 4 Coleus plants & treat as follows: 1. Leave intact 2. Remove apical bud 3. Remove apical bud + add control lanolin paste 4. Remove apical bud + add 5000ppm IAA lanolin paste Be sure to label all plants w/ treatment type, your names, lab section & today s date. Don t forget to make your hypotheses!!!
11 What you will do. You will also have a 4 th plant w/ apex removed & control lanolin paste added.
12 Today s s Experiment #1: (continued) Once you have set-up the experiment & made your initial observations, measurements, & hypotheses, you may continue with the next experiment. You will record the results of this experiment in lab in 2 weeks (Plant Hormones, Part 2). Next - testing the effect of Gibberellins on plant growth.
13 Gibberellins Example: 90+ types, gibberellic acid (GA 3 ) is most prevalent in flowering plants. Naturally occurring plant steroid hormones. Synthesized in meristematic regions: Young leaves Shoot tips Root tips Seeds too!
14 Gibberellins Translocated in the xylem & promotes cell elongation (like auxin). In shoots, stem elongation & rapid growth are controlled directly by gibberellic acid. In seeds, GA 3 causes germination to happen quickly by enhancing cell elongation in the embryonic root (i.e. roots grows quickly to penetrate seed coat).
15 Gibberellins Some plants lack the ability to synthesize GA 3, but will still react to this hormone if treated with it. Example: dwarf pea plants These plants do not produce their own GA 3, hence the name dwarf peas!
16 Today s s Experiment #2: (work in pairs) Obtain 2 Dwarf Pea Plants: take initial measurements & make observations. Then, treat as follows: 1. Leave untreated add only control solution. 2. Treat by adding GA 3 to the apex. Be sure to label all plants w/ treatment type, your names, lab section & today s date. Don t forget to make your hypotheses!!!
17 Today s s Experiment #2: (continued) Once you have set-up the experiment & made your initial observations, measurements, & hypotheses, you may continue with the next experiment. You will record the results of this experiment in lab in 2 weeks (Plant Hormones, Part 2). Next other plant responses to stimuli
18 Tropisms Directional growth movements that occur in response to stimuli. Growth TOWARD a stimulus is called a POSITIVE response. Growth AWAY from a stimulus is called a NEGATIVE response.
19 Gravitropism Definition: directional plant growth that occurs in response to gravity. If a plant is placed on its side The stem will bend upward toward the sun (against gravity). The root will bend downward (with the gravitational pull) into the soil.
20 Gravitropism Movements occur because of UNEQUAL growth. Unequal growth Results in bending toward or away from the stimulus. Occurs because of auxin (or other hormone) redistribution.
21 Gravitropic Response Occurs in 2 steps: 1. Something in the plant must detect gravity This something is starch grains called statoliths. 2. Differential growth must occur One side of the plant grows faster than another, causing the plant to bend.
22 Gravitropic Response Plant STEMS vs. ROOTS (both placed horizontally) Starch grains (statoliths) fall toward lower surface causing an increase in [auxin] in that region. Lower stem surface grows faster than upper surface, causing upward bending. Statoliths in root cap cause an increase in a growth inhibitor,abscisic acid, on the lower surface. Inhibition of growth on lower surface of the root causes a downward bending of root.
23 Seed Viability Seed viability (ability of a seed to grow) is important in the agricultural industry. If a seed is not capable of growth, a mature plant cannot be produced from it. Several tests exist to determine whether a seed is viable.
24 Testing Seed Viability Tetrazolium Test (TTC) colorless chemical when oxidized, but becomes pinkish/red when reduced. Test relies on whether or not the electron transport chain of a seed is functional.
25 TTC Test (continued) TTC added to a living cell will interact with the e - transport chain by accepting e - that are transferred from the cytochromes. When TTC accepts these e -, it is reduced and turns from colorless to deep pink/red. Abnormal seed Normal seed Note: Endosperm of normal seed is stained pink/red.
26 TTC Test (continued) TTC is a POISON, avoid contact with skin & eyes!! Handle only with gloves & goggles. Wash hands & spills immediately. You will be testing 2 groups of seeds, A & B, to determine if the seeds are viable. Cut seeds lengthwise & place face down in a petri dish that contains TTC. Put in a dark place for at least 25 minutes before examining.
27 Today s s Summary: Set-up experiments testing plant hormones auxin (IAA) & gibberellin (GA 3 ). Carefully, record ALL initial observations/measurements. Observe demonstrations, gravitropism of stems. Set-up seed gravitropism study in corn & bean experiments. TTC test for seed viability.
28 Today s s Summary: This lab will be relatively short in length, but you must set-up experiments carefully. The results will be recorded in lab two weeks from today. The data obtained in Part 2 will be the basis of a short write-up on this lab topic. start thinking about your hypotheses & possible outcomes!
Plant Responses to Environmental Cues Tropisms, Photoperiodism, and Plant Hormones
Plant Responses to Environmental Cues Tropisms, Photoperiodism, and Plant Hormones Plant Responses to Environmental Cues Phototropism - plant growth response to light shoots bend toward light - positive
More informationPlant Classification, Structure, Growth and Hormones
Biology SAT II Review Sheet Plants Plant Classification, Structure, Growth and Hormones Multicellular autotrophs (organisms that use the energy of inorganic materials to produce organic materials) Utilize
More informationChapter 39: Plant Responses to Internal and External Signals
Name Period Concept 39.1 Signal transduction pathways link signal reception to response This concept brings together the general ideas on cell communication from Chapter 11 with specific examples of signal
More informationGermination is the process in which a
The Germination Of a Bean Photographs and article By Lily C. Gerhardt LCG1603@rit.edu Germination is the process in which a seed, spore, or fungi sprouts, or begins growth. Seed germination can occur after
More informationClass 10 NCERT Science Text Book Chapter 7 Control and Coordination
Class 10 NCERT Science Text Book Chapter 7 Control and Coordination Question 1: What is the difference between a reflex action and walking? A reflex action is a rapid, automatic response to a stimulus.
More informationName Section Lab 5 Photosynthesis, Respiration and Fermentation
Name Section Lab 5 Photosynthesis, Respiration and Fermentation Plants are photosynthetic, which means that they produce their own food from atmospheric CO 2 using light energy from the sun. This process
More informationPlant Structure, Growth, and Development. Chapter 35
Plant Structure, Growth, and Development Chapter 35 PLANTS developmental plasticity = ability of plant to alter form to respond to environment Biological heirarchy Cell basic unit of life Tissue group
More informationSample Lab Report. Effect of the Hormone Gibberellic Acid on the Growth of Dwarf Peas
Dana Hitchcock Dr. Cummings - Prd. 1 September 9, 1996 Sample Lab Report Effect of the Hormone Gibberellic Acid on the Growth of Dwarf Peas Objective In this experiment students will grow genetically dwarf
More informationQuestion Bank Seed : Structure, Types and Germination
Question Bank Seed : Structure, Types and Germination 1. Describe the structure of a seed. Ans. A mature seed consists of two essential parts : (i) the seed coat, and (ii) the embryo The Seed coat : A
More informationPlant and Soil Science I
Plant and Soil Science I Levels: Grades 9-12 Units of Credit: 1.00 CIP Code: 02.0411 Core Code: 30-02-00-00-080 Prerequisite: None Skill Test: # 140 COURSE DESCRIPTION Students will develop knowledge and
More informationFunctional Biology of Plants
Brochure More information from http://www.researchandmarkets.com/reports/2252012/ Functional Biology of Plants Description: Functional Biology of Plants provides students and researchers with a clearly
More information10B Plant Systems Guided Practice
10B Plant Systems Guided Practice Reproduction Station 1 1. Observe Plant A. Locate the following parts of the flower: stamen, stigma, style, ovary. 2. Draw and label the parts of a flower (listed above)
More informationCELERY LAB - Structure and Function of a Plant
CELERY LAB - Structure and Function of a Plant READ ALL INSTRUCTIONS BEFORE BEGINNING! YOU MAY WORK WITH A PARTNER ON THIS ACTIVITY, BUT YOU MUST COMPLETE YOUR OWN LAB SHEET! Look at the back of this paper
More informationLecture 7: Plant Structure and Function. I. Background
Lecture 7: Plant Structure and Function I. Background A. Challenges for terrestrial plants 1. Habitat is divided a. Air is the source of CO2 for photosynthesis i. Sunlight cannot penetrate soil b. Soil
More informationCELERY LAB - Structure and Function of a Plant
CELERY LAB - Structure and Function of a Plant READ ALL INSTRUCTIONS BEFORE BEGINNING! YOU MAY WORK WITH A PARTNER ON THIS ACTIVITY, BUT YOU MUST COMPLETE YOUR OWN LAB SHEET! Plants are incredible organisms!
More informationPhenology. Phenology and Growth of Grapevines. Vine Performance
Phenology and Growth of Grapevines Ker 2007 1 Soil Depth Texture Water and nutrient supply Climate Radiation Temperature Humidity Windspeed Rainfall Evaporation Cultural decisions Vine density Scion and
More informationEXTERNAL AND INTERNAL STIMULI
reflect Think for a moment about activities that require balance. Riding a bicycle and walking across a balance beam require great balance. So do most daily activities like bending over to pick up a book
More informationLAB 24 Transpiration
Name: AP Biology Lab 24 LAB 24 Transpiration Objectives: To understand how water moves from roots to leaves in terms of the physical/chemical properties of water and the forces provided by differences
More informationo d Propagation and Moon Planting Fact Sheet
o d Propagation and Moon Planting Fact Sheet Propagation Propagation is actually quite simple and requires very little effort on your part. Most seeds are ready to go, complete with all the nutrients and
More informationPEACH TREE PHYSIOLOGY
PEACH TREE PHYSIOLOGY David W. Lockwood Department of Plant Sciences & Landscape Systems University of Tennessee Knoxville, TN 37996 D. C. Coston Agricultural Experiment Station Oklahoma State University
More informationPlant Growth & Development. Growth Stages. Differences in the Developmental Mechanisms of Plants and Animals. Development
Plant Growth & Development Plant body is unable to move. To survive and grow, plants must be able to alter its growth, development and physiology. Plants are able to produce complex, yet variable forms
More informationThe Huntington Library, Art Collections, and Botanical Gardens. How Sweet It Is: Enzyme Action in Seed Germination
The Huntington Library, Art Collections, and Botanical Gardens How Sweet It Is: Enzyme Action in Seed Germination Overview This experiment is intended to familiarize students with the macromolecule starch,
More informationWHAT ARE THE DIFFERENCES BETWEEN VASCULAR AND NON- VASCULAR PLANTS?
WHAT ARE THE DIFFERENCES BETWEEN VASCULAR AND NON- VASCULAR PLANTS? Let s take a closer look. What makes them different on the outside and inside? Learning Intentions To understand how vascular plant cells
More informationLesson 1 Characteristics of Life
Lesson 1 Student Labs and Activities Page Appropriate For: Launch Lab 8 all students Content Vocabulary ELL 9 all students Lesson Outline ELL 10 all students MiniLab 12 all students Content Practice A
More informationPlant Physiology. a plant s ability to do these things is strongly affected by the environment in which it live
Plant Physiology What kinds of things do plants DO? how do they live, etc plants must find water and nutrients and transport them to where they are needed within the plant carry out photosynthesis & respiration
More informationFlowers; Seeds enclosed in fruit
Name Class Date Chapter 22 Plant Diversity Section Review 22-1 Reviewing Key Concepts Short Answer On the lines provided, answer the following questions. 1. Describe the main characteristics of plants.
More information8. Study the cladogram underline the derived characteristics and circle the organisms that developed from them.
Seed Plants: Gymnosperms and Angiosperms Answer the questions as you go through the power point, there are also paragraphs to read where you will need to hi-lite or underline as you read. 1. What are the
More informationPlants have organs composed of different tissues, which in turn are composed of different cell types
Plant Structure, Growth, & Development Ch. 35 Plants have organs composed of different tissues, which in turn are composed of different cell types A tissue is a group of cells consisting of one or more
More informationEnzymes: Practice Questions #1
Enzymes: Practice Questions #1 1. Compound X increases the rate of the reaction below. Compound X is most likely A. an enzyme B. a lipid molecule C. an indicator D. an ADP molecule 2. The equation below
More information3) Transpiration creates a force that pulls water upward in. xylem. 2) Water and minerals transported upward form roots to shoots in.
3) Transpiration creates a force that pulls water upward in xylem Figure 36.1 An overview of transport in whole plants (Layer 1) Transport in plants 2) Water and minerals transported upward form roots
More informationGrowth and development of. Trees
Growth and development of Objectives: Trees 1. To study the morphological and physiological processes that occur for a temperate deciduous tree during the annual cycle, and the whole life cycle. 2. To
More informationPlant Responses to Different Growth Regulators (Hormones) in Tissue Culture
Plant Responses to Different Growth Regulators (Hormones) in Tissue Culture (A Classroom Exercise) Plant growth regulators (sometimes referred to as plant hormones) induce various responses in plant pieces
More information(1) (2) Physiology of Seed Germination
1 (1) (2) Physiology of Seed Germination Miller B. McDonald Seed Biology Program Department of Horticulture and Crop Science The Ohio State University Columbus, OH 43210-1086 mcdonald.2@osu.edu (3) In
More informationWater movement in the xylem Water moves from roots to leaves through the xylem. But how? Hypotheses: 1. Capillary action - water will move upward in
Transport in Plants Two Transport Processes Occur in Plants 1. Carbohydrates carried from leaves (or storage organs) to where they are needed (from sources to sinks) 2. Water transported from roots to
More informationIntroduction to Plant Propagation. Glenn T. Sako Assistant County Extension Agent CTAHR, UHM
Introduction to Plant Propagation Glenn T. Sako Assistant County Extension Agent CTAHR, UHM Purposes for Plant Propagation Multiply the number of a species Perpetuate a species Maintain the youthfulness
More informationPhotosynthesis. Chemical Energy (e.g. glucose) - They are the ultimate source of chemical energy for all living organisms: directly or indirectly.
Photosynthesis Light Energy transduction Chemical Energy (e.g. glucose) - Only photosynthetic organisms can do this (e.g. plants) - They are the ultimate source of chemical energy for all living organisms:
More informationExploring Seed Germination by Brad Williamson
Exploring Seed Germination by Brad Williamson Background: Seeds are very remarkable. Laying dormant inside the seed is an embryo plant. Packed with the embryo is enough stored chemical energy to power
More informationCell Cycle in Onion Root Tip Cells (IB)
Cell Cycle in Onion Root Tip Cells (IB) A quick overview of cell division The genetic information of plants, animals and other eukaryotic organisms resides in several (or many) individual DNA molecules,
More informationGERMINATION WORKSHEET 1: WHAT DO SEEDS NEED IN ORDER TO GROW?
GERMINATION WORKSHEET 1: WHAT DO SEEDS NEED IN ORDER TO GROW? The Experiment Under controlled conditions, students will learn what happens to seedlings when they are deprived of their basic needs and what
More informationPrinciples of Propagation by Cuttings
Polarity and Adventitious Root Formation Polarity is the condition inherent in a cutting that exhibits different properties in opposite parts. Proximal is closest to the root-shoot junction. Distal is
More informationThe Huntington Library, Art Collections, and Botanical Gardens
The Huntington Library, Art Collections, and Botanical Gardens Rooting for Mitosis Overview Students will fix, stain, and make slides of onion root tips. These slides will be examined for the presence
More informationANALYSIS OF VITAMIN C
Purpose To learn how to analyze food for vitamin C content and to examine various sources for vitamin C content. Caution Handle the glassware with caution to prevent breakage. When using a burner in the
More informationSoybean Physiology: How Well Do You Know Soybeans?
Soybean Physiology: How Well Do You Know Soybeans? Shaun Casteel, Purdue University Soybean Extension Specialist www.soybeanstation.org 2010-11, Purdue University - 1 Vegetative Growth Stages Reproductive
More informationDose/Response Experiments on Lettuce Seeds
Dose/Response Experiments on Lettuce Seeds Name: Date: Lab# Bioassays: Background Information on Dose/Response Experiments A bioassay involves use of a biological organism to test for chemical toxicity.
More informationReproductive System & Development: Practice Questions #1
Reproductive System & Development: Practice Questions #1 1. Which two glands in the diagram produce gametes? A. glands A and B B. glands B and E C. glands C and F D. glands E and F 2. Base your answer
More informationGCSE Additional Science Biology Contents Guide
GCSE Additional Science Contents Guide Copyright Boardworks Ltd 2007 Boardworks Ltd The Gallery 54 Marston Street Oxford OX4 1LF 08703 50 55 60 enquiries@boardworks.co.uk www.boardworks.co.uk 04-07 contains
More informationPlant Physiology Critical Stages in the Life of a Corn Plant
Plant Physiology Critical Stages in the Life of a Corn Plant Heather Darby and Joe Lauer Nature greatly influences corn growth and yield. However, the corn producer can manipulate the environment with
More informationLight in the Greenhouse: How Much is Enough?
Light in the Greenhouse: How Much is Enough? by: James W. Brown http://www.cropking.com/articlelghe Most of us know that green plants need light for photosynthesis, growth, and development. As important
More informationCITRUS PRUNING. control, fruit production and size control
CITRUS PRUNING Pruning techniques for tree health pest Pruning techniques for tree health, pest control, fruit production and size control Tree Shapes Citrus trees are generally pruned to a central leader
More informationBiology 172L General Biology Lab II Lab 03: Plant Life Cycles and Adaptations II: Gymnosperms and Angiosperms
Biology 172L General Biology Lab II Lab 03: Plant Life Cycles and Adaptations II: Gymnosperms and Angiosperms Introduction Vascular seed-bearing plants, such as gymnosperms (cone-bearing plants) and angiosperms
More informationPlant Growth - Light and Shade
Science Unit: Lesson 5: Plants Plant Growth - Light and Shade School year: 2004/2005 Developed for: Developed by: Grade level: Duration of lesson: Notes: Queen Alexandra Elementary School, Vancouver School
More informationUsing a Pendulum to Measure Gravity s Acceleration Elizabeth B. Chesick
SCIENCE EXPERIMENTS ON FILE Revised Edition 6.33-1 Using a Pendulum to Measure Gravity s Acceleration Elizabeth B. Chesick Topic Motion of a pendulum; gravity Time 1 2 hour! Safety Please click on the
More informationIdentification and Prevention of Frost or Freeze Damage By Linda Reddick, Kingman Area Master Gardener
KINGMAN IS GROWING! COLUMN Identification and Prevention of Frost or Freeze Damage By Linda Reddick, Kingman Area Master Gardener Again this year we have been experiencing some very cold weather, with
More informationMitosis in Onion Root Tip Cells
Mitosis in Onion Root Tip Cells A quick overview of cell division The genetic information of plants, animals and other eukaryotic organisms resides in several (or many) individual DNA molecules, or chromosomes.
More informationVirginia Gardener http://www.hort.vt.edu/envirohort
The Virginia Gardener http://www.hort.vt.edu/envirohort Name Help Sheets: Things Plants Need There are certain things that every living thing needs in order to live and grow. Just like you, plants need
More informationEffect Of Amino Acids On Plants
Effect Of Amino Acids On Plants Agriculture production is a very intensive business and is related to better quality and better yield leading to better profitability Every farmer s dreams to achieve this
More information(From the Kerckhoff Laboratories of Biology, California Institute of Technology, Pasadena, and Sacramento State College, Sacramento)
THE CYTOCHEMICAL LOCALIZATION OF ASCORBIC ACID IN ROOT TIP CELLS BY WILLIAM A. JENSEN,* PH.D., AND LEROY G. KAVALJ-IAN,$ PH.D. (From the Kerckhoff Laboratories of Biology, California Institute of Technology,
More informationMicro Mole Rockets Hydrogen and Oxygen Mole Ratio As adapted from Flinn ChemTopic- Labs - Molar Relationships & Stoichiometry
Micro Mole Rockets Hydrogen and Oxygen Mole Ratio As adapted from Flinn ChemTopic- Labs - Molar Relationships & Stoichiometry Introduction The combustion reaction of hydrogen and oxygen is used to produce
More information2 nd Grade Science Unit B: Life Sciences Chapter 3: Plants and Animals in Their Environment Lesson 1: How are plants and animals like their parents?
2 nd Grade Science Unit B: Life Sciences Chapter 3: Plants and Animals in Their Environment Lesson 1: How are plants and animals like their parents? offspring Offspring are young plants and animals. Offspring
More informationBiology 3A Laboratory MITOSIS Asexual Reproduction
Biology 3A Laboratory MITOSIS Asexual Reproduction OBJECTIVE To study the cell cycle and understand how, when and why cells divide. To study and identify the major stages of cell division. To relate the
More informationNutrients: Carbohydrates, Proteins, and Fats. Chapter 5 Lesson 2
Nutrients: Carbohydrates, Proteins, and Fats Chapter 5 Lesson 2 Carbohydrates Definition- the starches and sugars found in foods. Carbohydrates are the body s preferred source of energy providing four
More informationEnzymes. Chapter 3. 3.1 Enzymes and catalysts. Vital mistake. What is an enzyme?
Chapter 3 Enzymes Vital mistake We may not be able to see them, but enzymes are absolutely crucial to the lives of ourselves and all other living organisms. The Quarter Horse (Figure 3.1) is a breed of
More information1. The leaf is the main photosynthetic factory (Fig. 36.1, p. 702)
TRANSPORT IN PLANTS A. Introduction 1. The leaf is the main photosynthetic factory (Fig. 36.1, p. 702) a. This requires a transport system to move water and minerals from the roots to the leaf. This is
More informationReversing the inhibitory effect of paclobutrazol on seed germination of Amaranthus paniculatus by GA3, ethephon or ACC
Plant Growth Regulation 7: 47-52 (1988) Kluwer Academic Publishers Reversing the inhibitory effect of paclobutrazol on seed germination of Amaranthus paniculatus by GA3, ethephon or ACC JAN KFPCZYNSKI
More information2- The Top and bottom of the leaf is covered by thin layer of cells called epidermis that allow sunlight to easily pass into the middle of the leaf.
Final exam summary sheet Topic 5, lesson 2 How leaf is adapted to carry on photosynthesis? 1- Waxy layer called the cuticle cover the leaf slow the water loss. 2- The Top and bottom of the leaf is covered
More informationKindergarten Plants and Plant Growth Assessment
Kindergarten Plants and Plant Growth Assessment 1a. Circle one thing that plants need to grow: 1b. Circle all of the things that plants need to grow: 1c. Name three things that plants need to grow: 2a.
More informationVascular Plants Bryophytes. Seedless Plants
plant reproduction The Plants Vascular Plants Bryophytes Liverworts, Hornworts, Mosses lack roots and specialized tissues grow in moist, shady areas All have sieve cells and tracheids Seedless Plants Ferns
More informationSOIL TEST NOTES. NOTE 17: Managing Lead Contaminated Soils
University of Delaware Soil Testing Laboratory Newark, DE 19717-1303 SOIL TEST NOTES NOTE 17: Managing Lead Contaminated Soils Lead in Soils Lead is naturally present in all soils at low levels. Some soils,
More informationTwo Main Precautions Before You Begin Working
Pruning Mango Trees Roy Beckford, Ag/Natural Resources Agent, UF/IFAS Lee County Two Main Precautions Before You Begin Working 1. Mango peel and sap contain urushiol, the chemical in poison ivy and poison
More informationUnderstanding the. Soil Test Report. Client and Sample Identification
Understanding the Soil Test Report Page 1 of 7 Crops absorb the nutrients required from soil in order to grow, so ensuring that your soil is meeting the crops needs is critical. Having the proper level
More informationChapter 36: Resource Acquisition & Transport in Vascular Plants
Chapter 36: Resource Acquisition & Transport in Vascular Plants 1. Overview of Transport in Plants 2. Transport of Water & Minerals 3. Transport of Sugars 1. Overview of Transport in Plants H 2 O CO 2
More informationThird Grade Science Vocabulary Investigation Design & Safety
recycle dispose reuse goggles data conclusion predict describe observe record identify investigate evidence analyze mass matter float sink attract force magnet magnetic magnetism pole pull push repel Third
More informationReminder: These notes are meant to supplement, not replace, the textbook and lab manual. Electrophilic Aromatic Substitution notes
Reminder: These notes are meant to supplement, not replace, the textbook and lab manual. Electrophilic Aromatic Substitution notes History and Application: The rate of a reaction directly impacts the commercial
More informationGARDEN FACTS. When are apples ripe?
A3743-E GARDEN FACTS U n i v e r s i t y o f W i s c o n s i n E x t e n s i o n When are apples ripe? Teryl R. Roper DIFFERENT APPLE CULTIVARS RIPEN over a long season. In Wisconsin, apples ripen from
More informationCorn Tissue Sampling WHEN AND HOW
WHEN AND HOW Corn Tissue Sampling After the grower, farm, field and plant tissue work order have been created within the Nutra-Links Crop Intelligence software; 1. Print the field s work order and take
More informationTransport in Plants Notes AP Biology Mrs. Laux 3 levels of transport occur in plants: 1. Uptake of water and solutes by individual cells
3 levels of transport occur in plants: 1. Uptake of water and solutes by individual cells -for photosynthesis and respiration -ex: absorption of H 2 O /minerals by root hairs 2. Short distance cell-to-cell
More informationParallel Circuits Charles Lang
SCIENCE EXPERIMENTS ON FILE Revised Edition 6.20-1 Parallel Circuits Charles Lang Topic Parallel circuits Time 1 1 2 hours! Safety Adult supervision is required. Please click on the safety icon to view
More informationA guide for handling for cabbage, carrot, hot pepper, lettuce, sweet potato and tomato. Food and Agriculture Organization of the United Nations
A guide for handling for cabbage, carrot, hot pepper, lettuce, sweet potato and tomato Food and Agriculture Organization of the United Nations A guide for handling for cabbage 1. HARVESTING Harvesting
More informationMaterial Safety Data Sheet
Material Safety Data Sheet OASIS PRO 10 HEAVY DUTY ALL PURPOSE 1. Product and company identification Trade name of product Product use Product dilution information : OASIS PRO 10 HEAVY DUTY ALL PURPOSE
More informationSurface Tension: Liquids Stick Together Teacher Version
Surface Tension: Liquids Stick Together Teacher Version In this lab you will learn about properties of liquids, specifically cohesion, adhesion, and surface tension. These principles will be demonstrated
More informationSugar Makers. Real-world Connection: Energy harnessed by photosynthesis powers ecosystems, machines, and even our own bodies.
Sugar Makers Principle of Plant Biology #1 Plants contain the same biological processes and biochemistry as microbes and animals. However, plants are unique in that they have the ability to use energy
More informationGrowth of Pasture Plants
Growth of Pasture Plants 3 GREG J. BISHOP-HURLEY In a grazing situation it is important to understand both how plants function and their form and structure. Every plant growth response is caused by a series
More informationChapter 2: Forms of Energy
Chapter 2: Forms of Energy Goals of Period 2 Section 2.1: To describe the forms of energy Section 2.2: To illustrate conversions from one form of energy to another Section 2.3 To describe energy storage
More informationHow do you digest milk? In this experiment you will test the ability of two substances, an acid and enzyme, to break down protein.
3.3 (page 1) Science Projects For ALL Students Digestion How do you digest milk? In this experiment you will test the ability of two substances, an acid and enzyme, to break down protein. Digestion is
More informationDETECTION OF BACTERIAL MOTILITY. To demonstrate bacterial motility by microscopic and macroscopic techniques.
DETECTION OF BACTERIAL MOTILITY I. OBJECTIVES To demonstrate bacterial motility by microscopic and macroscopic techniques. To observe flagella in prepared slides stained by specific flagellar stains. II.
More informationChapter 38: Angiosperm Reproduction and Biotechnology
Name Period Concept 38.1 Flowers, double fertilization, and fruits are unique features of the angiosperm life cycle This may be a good time for you to go back to Chapter 29 and review alternation of generation
More informationIGCSE and GCSE Biology. Answers to questions. Section 2. Flowering Plants. Chapters 6-9. Chapter 6 Plant structure and function
1 IGCSE and GCSE Biology. Answers to questions Section 2. Flowering Plants. Chapters 6-9 Chapter 6 Plant structure and function Page 54 1. a Epidermis. Helps maintain shape, reduces evaporation, resists
More informationNitrogen Fixing Corn and 199 Other Crops
Nitrogen Fixing Corn and 199 Other Crops Dr David Dent Founder/Technical Director Azotic Technologies Ltd 1 In my dream I see green, vigorous, high yielding fields of wheat, rice, maize, sorghum and millet
More informationIntroduction to Plants
Introduction to Plants Unity and Diversity of Life Q: What are the five main groups of plants, and how have four of these groups adapted to life on land? 22.1 What are of plants? WHAT I KNOW SAMPLE ANSWER:
More informationPlants, like all living organisms have basic needs: a source of nutrition (food), water,
WHAT PLANTS NEED IN ORDER TO SURVIVE AND GROW: LIGHT Grades 3 6 I. Introduction Plants, like all living organisms have basic needs: a source of nutrition (food), water, space in which to live, air, and
More informationLab 3: Testing Hypotheses about Mitosis
Lab 3: Testing Hypotheses about Mitosis Why do cells divide? Lab today focuses on cellular division, also known as cellular reproduction. To become more familiar with why cells divide, the types of cell
More informationTransport in Plants. Lab Exercise 25. Introduction. Objectives
Lab Exercise Transport in Plants Objectives - Become familiar and be able to recognize the different types of cells found in the plant s vascular tissue. - Be able to describe root pressure and transpiration
More informationLimiting Reagent (using an analogy and a learning cycle approach)
Limiting Reagent (using an analogy and a learning cycle approach) Welcome: This is the fourth of a four- experiment sequence, covering four important aspects of chemistry, and utilizing a learning cycle
More informationPetri Dish Electrolysis Electrolysis Reactions
elearning 2009 Introduction Petri Dish Electrolysis Electrolysis Reactions Publication No. 95008 Electrolysis is defined as the decomposition of a substance by means of an electric current. When an electric
More informationOperator Quick Guide EC SENSOR
Operator Quick Guide EC SENSOR Revision G - 24/04/2008 General Information About This Guide The information in this guide has been carefully checked and is believed to be accurate. However, Hach Ultra
More informationVitamin C Content of Fruit Juice
1 Vitamin C Content of Fruit Juice Introduction Vitamin C Vitamins are organic compounds that have important biological functions. For instance, in humans they enable a variety of enzymes in the body to
More informationWhat factors, including environmental variables, affect the rate of transpiration in plants?
Big Idea 4 Interactions investigation 11 TRANSPIRATION* What factors, including environmental variables, affect the rate of transpiration in plants? BACKGROUND Cells and organisms must exchange matter
More informationRelated Standards and Background Information
Related Standards and Background Information Earth Patterns, Cycles and Changes This strand focuses on student understanding of patterns in nature, natural cycles, and changes that occur both quickly and
More informationTopic 3: Nutrition, Photosynthesis, and Respiration
1. Base your answer to the following question on the chemical reaction represented below and on your knowledge of biology. If this reaction takes place in an organism that requires sunlight to produce
More informationMacromolecules in my food!!
Macromolecules in my food!! Name Notes/Background Information Food is fuel: All living things need to obtain fuel from something. Whether it is self- made through the process of photosynthesis, or by ingesting
More information