The Cell Membrane The barrier to the cell. Mrs. Dignan s Science Class
|
|
- Liliana Carson
- 7 years ago
- Views:
Transcription
1 The Cell Membrane The barrier to the cell Mrs. Dignan s Science Class
2 Cell Membrane Physical Description: thin, flexible barrier made of phospholipids around the cell (just inside the cell wall OR the outside border of animal cells) Function: controls what enters and leaves the cell; support and protection Type of Cell: found in all cells Analogy: it is like the security guard of a factory because it controls what enters and leaves the cell
3 Plant Cell Bacterial Cell Animal Cell
4 Why Does The Cell Membrane Matter? What would happen at an airport if there were no security guards and airline checkers? Answer: Dangerous materials could enter, there could be way too many people there at one time and flights would become overcrowded and unable to fly. What if, instead of security guards, we had giant cement walls to keep people out of airports? Answer: No one would be able to fly and the world would come to an end!
5 Selectively Permeable Permeable: something that allows other substances to pass through Selective: choosing or selecting Like a security guard, the cell membrane controls what enters and what leaves the cell. They are sometimes also described as semipermeable.
6 Permeability has everything to do with the cell membrane s structure com/watch?v=rl5em UQdkuI
7 The phospholipid bilayer Phospho the head of the phospholipid is composed of a phosphorus atom, surrounded by other atoms (called a phosphate group). Lipid the tail of the phospholipid is composed of lipids, which are fatty acids like oils, waxes, and fats.
8 Hydrophillic hydro means water, phillic means love. Hydrophillic molecules love water and are attracted to it. Hydrophobic hydro means water, phobic means fear. Hydrophobic molecules hate water and repel it. Phospholipids have a hydrophillic head and a hydrophobic tail.
9 The cell membrane is composed of a bilayer (two layers) of phospholipids. In both layers, the head is attracted to the water inside and outside of the cell. The tail is repelled and ends up facing it s counterpart in the other layer.
10 Some shall pass In order for molecules to enter or exit the cell, they must pass through the phospholipid bilayer. Some have an easier time than others.
11 Fat soluble molecules: Molecules that dissolve easily in fats. They can usually squeeze through the membrane easily because the fatty tails of the phospholipids like them. (Exps O 2, CO 2, steroids, Vitamins A, D, E, and K.) Water soluble molecules: Molecules that dissolve easily in water. They are usually repelled by the hydrophobic tails of the phospholipids. (Exps sugars, sodium, calcium) Water: Surprisingly, water can pass through the phospholipid bilayer relatively easily because it is a very small molecule.
12 Types of Transport Passive Transport: molecules move randomly according to their concentration gradient. Does NOT require energy Happens spontaneously Example: a bad smell diffusing across a room Active Transport: molecules are actively moved by cell organelles. Does require energy Something has to make it happen Example: some movers carrying boxes into the house.
13 Passive transport Diffusion: molecules spread out through a liquid or gas. Molecules always move from an area of higher concentration to less concentration Concentration=the amount of molecules per unit of area New York City has a high concentration of people, Montana has a low concentration of people
14 Diffusion of dye through water
15 Passive transport Osmosis: The diffusion of water molecules across a semi-permeable membrane. A specific type of diffusion. Semi permeable = some things get through, others don t The cell membrane has small pores. Small molecules like H 2 O and O 2 get through, but bigger molecules like C 6 H 12 O 6 cannot.
16 Osmosis water is the only thing that moves in osmosis. Solution: a liquid formed when a solute dissolves in a solvent. Solvent: the liquid that the solute is dissolved in (typically water) Solute: the thing that is dissolved in the solvent (sugar, salt, kool-aid, etc.)
17 Types of solutions Passive transport Hypotonic- Low solute concentration compared to the cell (example- pure water) Isotonic- The same solute concentration compared to the cell (example- slightly salty water) hypertonic- High solute concentration compared to the cell (example- very salty water)
18 Osmosis
19 Active transport Active Transport: ATP is used to open and close special proteins in the membrane to let bigger molecules into or out of the cell.
20
21 Active transport Cytokinesis: ATP is used to actually move the cell membrane around. Cyto=cell Kinesis=movement Endocytosis- the cell membrane engulfs food particles to take them inside the cell Exocytosis-the cell membrane spits out waste particles to get rid of them Cytokinesis is also important when the cell reproduces by splitting into two cells.
22 Cell membranes Task: Make a concept diagram that contains the following terms. Hypertonic Transport Solute Endocytosis Osmosis Cell division Passive Transport Cytokinesis Hydrophobic tail Isotonic Solution Cell membrane Solvent Hydrophilic head Phospholipid Proteins hypotonic Active Transport Diffusion Exocytosis Active transport
Cell Membrane & Tonicity Worksheet
NAME ANSWER KEY DATE PERIOD Cell Membrane & Tonicity Worksheet Composition of the Cell Membrane & Functions The cell membrane is also called the PLASMA membrane and is made of a phospholipid BI-LAYER.
More informationOsmosis, Diffusion and Cell Transport
Osmosis, Diffusion and Cell Transport Types of Transport There are 3 types of transport in cells: 1. Passive Transport: does not use the cell s energy in bringing materials in & out of the cell 2. Active
More informationCELL MEMBRANE & CELL TRANSPORT (PASSIVE and ACTIVE) Webquest
Name: Period: CELL MEMBRANE & CELL TRANSPORT (PASSIVE and ACTIVE) Webquest PART I: CELL MEMBRANES WEBSITE #1: http://www.wisc-online.com/objects/index_tj.asp?objid=ap1101 1. What is the BASIC UNIT of LIFE?
More informationCell Membrane Coloring Worksheet
Cell Membrane Coloring Worksheet Composition of the Cell Membrane & Functions The cell membrane is also called the plasma membrane and is made of a phospholipid bilayer. The phospholipids have a hydrophilic
More informationFIGURE 2.18. A. The phosphate end of the molecule is polar (charged) and hydrophilic (attracted to water).
PLASMA MEMBRANE 1. The plasma membrane is the outermost part of a cell. 2. The main component of the plasma membrane is phospholipids. FIGURE 2.18 A. The phosphate end of the molecule is polar (charged)
More informationCell Transport and Plasma Membrane Structure
Cell Transport and Plasma Membrane Structure POGIL Guided Inquiry Learning Targets Explain the importance of the plasma membrane. Compare and contrast different types of passive transport. Explain how
More informationChapter 8. Movement across the Cell Membrane. AP Biology
Chapter 8. Movement across the Cell Membrane More than just a barrier Expanding our view of cell membrane beyond just a phospholipid bilayer barrier phospholipids plus Fluid Mosaic Model In 1972, S.J.
More informationMembrane Transport. Extracellular Concentration of X
Use the following graph to answer questions 1 and 2. Rate of diffusion of X into the cell 1. Which of the following processes is represented by the above graph? c. Active transport 2. Molecule X is most
More informationMembrane Structure and Function
Membrane Structure and Function Part A Multiple Choice 1. The fluid mosaic model describes membranes as having A. a set of protein channels separated by phospholipids. B. a bilayer of phospholipids in
More informationCHAPTER 5.1 5.2: Plasma Membrane Structure
CHAPTER 5.1 5.2: Plasma Membrane Structure 1. Describe the structure of a phospholipid molecule. Be sure to describe their behavior in relationship to water. 2. What happens when a collection of phospholipids
More informationChapter 3. Cellular Structure and Function Worksheets. 39 www.ck12.org
Chapter 3 Cellular Structure and Function Worksheets (Opening image copyright by Sebastian Kaulitzki, 2010. Used under license from Shutterstock.com.) Lesson 3.1: Introduction to Cells Lesson 3.2: Cell
More information4. Biology of the Cell
4. Biology of the Cell Our primary focus in this chapter will be the plasma membrane and movement of materials across the plasma membrane. You should already be familiar with the basic structures and roles
More informationCell Biology - Part 2 Membranes
Cell Biology - Part 2 Membranes The organization of cells is made possible by membranes. Membranes isolate, partition, and compartmentalize cells. 1 Membranes isolate the inside of the cell from the outside
More informationHomeostasis and Transport Module A Anchor 4
Homeostasis and Transport Module A Anchor 4 Key Concepts: - Buffers play an important role in maintaining homeostasis in organisms. - To maintain homeostasis, unicellular organisms grow, respond to the
More informationCh. 8 - The Cell Membrane
Ch. 8 - The Cell Membrane 2007-2008 Phospholipids Phosphate head hydrophilic Fatty acid tails hydrophobic Arranged as a bilayer Phosphate attracted to water Fatty acid repelled by water Aaaah, one of those
More information7. A selectively permeable membrane only allows certain molecules to pass through.
CHAPTER 2 GETTING IN & OUT OF CELLS PASSIVE TRANSPORT Cell membranes help organisms maintain homeostasis by controlling what substances may enter or leave cells. Some substances can cross the cell membrane
More information1.1.2. thebiotutor. AS Biology OCR. Unit F211: Cells, Exchange & Transport. Module 1.2 Cell Membranes. Notes & Questions.
thebiotutor AS Biology OCR Unit F211: Cells, Exchange & Transport Module 1.2 Cell Membranes Notes & Questions Andy Todd 1 Outline the roles of membranes within cells and at the surface of cells. The main
More informationMembrane Structure and Function
Membrane Structure and Function -plasma membrane acts as a barrier between cells and the surrounding. -plasma membrane is selective permeable -consist of lipids, proteins and carbohydrates -major lipids
More informationSection 7-3 Cell Boundaries
Note: For the past several years, I ve been puzzling how to integrate new discoveries on the nature of water movement through cell membranes into Chapter 7. The Section below is a draft of my first efforts
More informationSix major functions of membrane proteins: Transport Enzymatic activity
CH 7 Membranes Cellular Membranes Phospholipids are the most abundant lipid in the plasma membrane. Phospholipids are amphipathic molecules, containing hydrophobic and hydrophilic regions. The fluid mosaic
More informationBiological cell membranes
Unit 14: Cell biology. 14 2 Biological cell membranes The cell surface membrane surrounds the cell and acts as a barrier between the cell s contents and the environment. The cell membrane has multiple
More informationModes of Membrane Transport
Modes of Membrane Transport Transmembrane Transport movement of small substances through a cellular membrane (plasma, ER, mitochondrial..) ions, fatty acids, H 2 O, monosaccharides, steroids, amino acids
More informationCELL MEMBRANES, TRANSPORT, and COMMUNICATION. Teacher Packet
AP * BIOLOGY CELL MEMBRANES, TRANSPORT, and COMMUNICATION Teacher Packet AP* is a trademark of the College Entrance Examination Board. The College Entrance Examination Board was not involved in the production
More informationCellular Structure and Function
Chapter Test A CHAPTER 7 Cellular Structure and Function Part A: Multiple Choice In the space at the left, write the letter of the term or phrase that best answers each question. 1. Which defines a cell?
More informationMultiple Choice Questions
Chapter 5 THE FUNDAMENTAL UNIT OF LIFE Multiple Choice Questions 1. Which of the following can be made into crystal? (a) A Bacterium (b) An Amoeba (c) A Virus (d) A Sperm 2. A cell will swell up if (a)
More informationPART I: Neurons and the Nerve Impulse
PART I: Neurons and the Nerve Impulse Identify each of the labeled structures of the neuron below. A. B. C. D. E. F. G. Identify each of the labeled structures of the neuron below. A. dendrites B. nucleus
More informationDiffusion and Osmosis
Diffusion and Osmosis OBJECTIVES: 1. To explore how different molecules move by diffusion and osmosis through semi-permeable membranes. 2. To understand how different concentration gradients affect the
More informationLab 4: Osmosis and Diffusion
Lab 4: Osmosis and Diffusion The plasma membrane enclosing every cell is the boundary that separates the cell from its external environment. It is not an impermeable barrier, but like all biological membranes,
More informationCell Membrane Structure (and How to Get Through One)
Cell Membrane Structure (and How to Get Through One) A cell s membrane is a wall of sorts that defines the boundaries of a cell. The membrane provides protection and structure for the cell and acts as
More informationBIOL 305L Laboratory Two
Please print Full name clearly: Introduction BIOL 305L Laboratory Two Osmosis, because it is different in plants! Osmosis is the movement of solvent molecules through a selectively permeable membrane into
More informationKeystone Review Practice Test Module A Cells and Cell Processes. 1. Which characteristic is shared by all prokaryotes and eukaryotes?
Keystone Review Practice Test Module A Cells and Cell Processes 1. Which characteristic is shared by all prokaryotes and eukaryotes? a. Ability to store hereditary information b. Use of organelles to control
More informationCell membranes and transport. Learning Objective:
Cell membranes and transport Content Fluid mosaic model of membrane structure Movement of substances into and out of cells Learning Objective: a. Describe and explain the fluid mosaic model of membrane
More informationDate: Student Name: Teacher Name: Jared George. Score: 1) A cell with 1% solute concentration is placed in a beaker with a 5% solute concentration.
Biology Keystone (PA Core) Quiz Homeostasis and Transport - (BIO.A.4.1.1 ) Plasma Membrane, (BIO.A.4.1.2 ) Transport Mechanisms, (BIO.A.4.1.3 ) Transport Facilitation Student Name: Teacher Name: Jared
More informationCells and Their Housekeeping Functions Cell Membrane & Membrane Potential
Cells and Their Housekeeping Functions Cell Membrane & Membrane Potential Shu-Ping Lin, Ph.D. Institute of Biomedical Engineering E-mail: splin@dragon.nchu.edu.tw Website: http://web.nchu.edu.tw/pweb/users/splin/
More informationUnit 2: Cells, Membranes and Signaling CELL MEMBRANE. Chapter 5 Hillis Textbook
Unit 2: Cells, Membranes and Signaling CELL MEMBRANE Chapter 5 Hillis Textbook HOW DOES THE LAB RELATE TO THE NEXT CHAPTER? SURFACE AREA: the entire outer covering of a cell that enables materials pass.
More informationAnatomy and Physiology Placement Exam 2 Practice with Answers at End!
Anatomy and Physiology Placement Exam 2 Practice with Answers at End! General Chemical Principles 1. bonds are characterized by the sharing of electrons between the participating atoms. a. hydrogen b.
More informationFig. 1. Background. Name: Class: Date:
Background Bubbles make a great stand in for cell membranes. They re fluid, flexible, and can self-repair. Bubbles and cell membranes are alike because their parts are so similar. If you could zoom down
More informationChapter 7: Membrane Structure and Function
Name Period Concept 7.1 Cellular membranes are fluid mosaics of lipids and proteins 1. The large molecules of all living things fall into just four main classes. Name them. 2. Explain what is meant when
More informationIB104 - Lecture 9 - Membranes
There have been many magnificent boats built to try to reach 50 knots. This was the creation of an Australian team that held the record for more than a decade, from 1993 till 2005, at 46.5 knots with their
More informationChemistry B11 Chapter 6 Solutions and Colloids
Chemistry B11 Chapter 6 Solutions and Colloids Solutions: solutions have some properties: 1. The distribution of particles in a solution is uniform. Every part of the solution has exactly the same composition
More informationCells & Cell Organelles
Cells & Cell Organelles The Building Blocks of Life H Biology Types of cells bacteria cells Prokaryote - no organelles Eukaryotes - organelles animal cells plant cells Cell size comparison Animal cell
More informationCell Structure and Function
Bio 100 - Cells 1 Cell Structure and Function Tenets of Cell Theory 1. All living things are made up of one or more cells 2. Cells are the basic living units within organisms, and the chemical reactions
More informationName: Hour: Elements & Macromolecules in Organisms
Name: Hour: Elements & Macromolecules in Organisms Most common elements in living things are carbon, hydrogen, nitrogen, and oxygen. These four elements constitute about 95% of your body weight. All compounds
More informationElements & Macromolecules in Organisms
Name: Date: Per: Table # Elements & Macromolecules in rganisms Most common elements in living things are carbon, hydrogen, nitrogen, and oxygen. These four elements constitute about 95% of your body weight.
More informationChapter 5: The Structure and Function of Large Biological Molecules
Name Period Concept 5.1 Macromolecules are polymers, built from monomers 1. The large molecules of all living things fall into just four main classes. Name them. 2. Circle the three classes that are called
More information(Woods) Chem-131 Lec-19 09-4 Lipids 1. Lipids:
(Woods) Chem-131 Lec-19 09-4 Lipids 1 Lipids Classifying Lipids Triacylglycerols (triglycerides): a storage form of energy not required for immediate use. Phospholipids, p sphingolipids, p and cholesterol
More informationBIOLOGICAL MEMBRANES: FUNCTIONS, STRUCTURES & TRANSPORT
BIOLOGICAL MEMBRANES: FUNCTIONS, STRUCTURES & TRANSPORT UNIVERSITY OF PNG SCHOOL OF MEDICINE AND HEALTH SCIENCES DISCIPLINE OF BIOCHEMISTRY AND MOLECULAR BIOLOGY BMLS II / B Pharm II / BDS II VJ Temple
More informationIons cannot cross membranes. Ions move through pores
Ions cannot cross membranes Membranes are lipid bilayers Nonpolar tails Polar head Fig 3-1 Because of the charged nature of ions, they cannot cross a lipid bilayer. The ion and its cloud of polarized water
More informationCarbohydrates, proteins and lipids
Carbohydrates, proteins and lipids Chapter 3 MACROMOLECULES Macromolecules: polymers with molecular weights >1,000 Functional groups THE FOUR MACROMOLECULES IN LIFE Molecules in living organisms: proteins,
More informationLesson Aim To explain the human body at a microscopic level, including the structure and function of cells, tissues and membranes.
LESSON 1. CELLS & TISSUES Lesson Aim To explain the human body at a microscopic level, including the structure and function of cells, tissues and membranes. THE CELL All living matter is composed of functional
More informationThe Lipid Bilayer Is a Two-Dimensional Fluid
The Lipid Bilayer Is a Two-Dimensional Fluid The aqueous environment inside and outside a cell prevents membrane lipids from escaping from bilayer, but nothing stops these molecules from moving about and
More informationChapter 13 Solution Dynamics. An Introduction to Chemistry by Mark Bishop
Chapter 13 Solution Dynamics An Introduction to Chemistry by Mark Bishop Chapter Map Why Changes Happen Consider a system that can switch freely between two states, A and B. Probability helps us to predict
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 informationOSMOSIS AND DIALYSIS 2003 BY Wendy Weeks-Galindo with modifications by David A. Katz
OSMOSIS AND DIALYSIS 2003 BY Wendy Weeks-Galindo with modifications by David A. Katz OSMOSIS Osmosis is the reason that a fresh water fish placed in the ocean desiccates and dies. Osmosis is the reason
More informationPRESTWICK ACADEMY NATIONAL 5 BIOLOGY CELL BIOLOGY SUMMARY
Name PRESTWICK ACADEMY NATIONAL 5 BIOLOGY CELL BIOLOGY SUMMARY Cell Structure Identify animal, plant, fungal and bacterial cell ultrastructure and know the structures functions. Plant cell Animal cell
More informationDiffusion, Osmosis, and Membrane Transport
Diffusion, Osmosis, and Membrane Transport Introduction... 2 Diffusion and osmosis as related to cellular processes... 2 The hotter the medium, the faster the molecules diffuse... 2 TASK 1: TEMPERATURE
More informationChemical Basis of Life Module A Anchor 2
Chemical Basis of Life Module A Anchor 2 Key Concepts: - Water is a polar molecule. Therefore, it is able to form multiple hydrogen bonds, which account for many of its special properties. - Water s polarity
More informationOrganic Molecules of Life - Exercise 2
Organic Molecules of Life - Exercise 2 Objectives -Know the difference between a reducing sugar and a non-reducing sugar. -Distinguish Monosaccharides from Disaccharides and Polysaccharides -Understand
More informationReview of the Cell and Its Organelles
Biology Learning Centre Review of the Cell and Its Organelles Tips for most effective learning of this material: Memorize the names and structures over several days. This will help you retain what you
More informationElectron Transport Generates a Proton Gradient Across the Membrane
Electron Transport Generates a Proton Gradient Across the Membrane Each of respiratory enzyme complexes couples the energy released by electron transfer across it to an uptake of protons from water in
More informationCell Transport across the cell membrane. Kathy Jardine and Brian Evans. July 17, 2014
Cell Transport across the cell membrane Kathy Jardine and Brian Evans July 17, 2014 INFORMATION ABOUT THE LESSON Grade Level and Subject Area 10 (9-11): Biology Time Frame 4-45 min class periods Objectives:
More informationTHE HISTORY OF CELL BIOLOGY
SECTION 4-1 REVIEW THE HISTORY OF CELL BIOLOGY Define the following terms. 1. cell 2. cell theory Write the correct letter in the blank. 1. One early piece of evidence supporting the cell theory was the
More informationtissues are made of cells that work together, organs are )
Study Guide Cells Unit Test Matching. Write the letter of the correct response on the line. You may use the responses more than once. A. proteins B. simple carbohydrates C. complex carbohydrates D. lipids
More informationElements in Biological Molecules
Chapter 3: Biological Molecules 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids Elements in Biological Molecules Biological macromolecules are made almost entirely of just 6 elements: Carbon (C)
More informationBiology I. Chapter 7
Biology I Chapter 7 Interest Grabber NOTEBOOK #1 Are All Cells Alike? All living things are made up of cells. Some organisms are composed of only one cell. Other organisms are made up of many cells. 1.
More information7.2 Cell Structure. Lesson Objectives. Lesson Summary. Cell Organization Eukaryotic cells contain a nucleus and many specialized structures.
7.2 Cell Structure Lesson Objectives Describe the structure and function of the cell nucleus. Describe the role of vacuoles, lysosomes, and the cytoskeleton. Identify the role of ribosomes, endoplasmic
More informationLipids. Classifying Lipids
(Woods) Chem-131 Lec-19 09-4 Lipids 1 Lipids Triacylglycerols (triglycerides): a storage form of energy not required for immediate use. Phospholipids, sphingolipids, and cholesterol (together with proteins)
More informationAbsorption of Drugs. Transport of a drug from the GI tract
Absorption of Drugs Absorption is the transfer of a drug from its site of administration to the bloodstream. The rate and efficiency of absorption depend on the route of administration. For IV delivery,
More informationCell and Membrane Practice. A. chromosome B. gene C. mitochondrion D. vacuole
Name: ate: 1. Which structure is outside the nucleus of a cell and contains N?. chromosome. gene. mitochondrion. vacuole 2. potato core was placed in a beaker of water as shown in the figure below. Which
More informationTotal body water ~(60% of body mass): Intracellular fluid ~2/3 or ~65% Extracellular fluid ~1/3 or ~35% fluid. Interstitial.
http://www.bristol.ac.uk/phys-pharm/teaching/staffteaching/sergeykasparov.htmlpharm/teaching/staffteaching/sergeykasparov.html Physiology of the Cell Membrane Membrane proteins and their roles (channels,
More informationTransmembrane proteins span the bilayer. α-helix transmembrane domain. Multiple transmembrane helices in one polypeptide
Transmembrane proteins span the bilayer α-helix transmembrane domain Hydrophobic R groups of a.a. interact with fatty acid chains Multiple transmembrane helices in one polypeptide Polar a.a. Hydrophilic
More informationThe Structure and Function of Macromolecules: Carbohydrates, Lipids & Phospholipids
The Structure and Function of Macromolecules: Carbohydrates, Lipids & Phospholipids The FOUR Classes of Large Biomolecules All living things are made up of four classes of large biological molecules: Carbohydrates
More informationChapter 3: Biological Molecules. 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids
Chapter 3: Biological Molecules 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic Acids Elements in Biological Molecules Biological macromolecules are made almost entirely of just 6 elements: Carbon (C)
More informationLecture Overview. Hydrogen Bonds. Special Properties of Water Molecules. Universal Solvent. ph Scale Illustrated. special properties of water
Lecture Overview special properties of water > water as a solvent > ph molecules of the cell > properties of carbon > carbohydrates > lipids > proteins > nucleic acids Hydrogen Bonds polarity of water
More informationHuman Anatomy & Physiology I with Dr. Hubley. Practice Exam 1
Human Anatomy & Physiology I with Dr. Hubley Practice Exam 1 1. Which definition is the best definition of the term gross anatomy? a. The study of cells. b. The study of tissues. c. The study of structures
More informationInvestigating the Movement of Materials across Selectively Permeable Membranes Grisha Agamov and Ali Murad Büyüm
Investigating the Movement of Materials across Selectively Permeable Membranes Grisha Agamov and Ali Murad Büyüm Abstract: The reason of this experiment was to observe diffusion and osmosis, and to understand
More informationAP Biology-Chapter #6 & 7 Review
DO NOT WRITE ON THIS TEST- USE ANSWER DOCUMENT AP Biology-Chapter #6 & 7 Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. All of the following are
More informationConnexions module: m46021 1. The Cell Membrane. OpenStax College. Abstract. By the end of this section, you will be able to:
Connexions module: m46021 1 The Cell Membrane OpenStax College This work is produced by The Connexions Project and licensed under the Creative Commons Attribution License 3.0 By the end of this section,
More informationBiochemistry of Cells
Biochemistry of Cells 1 Carbon-based Molecules Although a cell is mostly water, the rest of the cell consists mostly of carbon-based molecules Organic chemistry is the study of carbon compounds Carbon
More informationChapter 4: A Tour of the Cell. 1. Cell Basics. Limits to Cell Size. 1. Cell Basics. 2. Prokaryotic Cells. 3. Eukaryotic Cells
Chapter 4: A Tour of the Cell 1. Cell Basics 2. Prokaryotic Cells 3. Eukaryotic Cells 1. Cell Basics Limits to Cell Size There are 2 main reasons why cells are so small: If cells get too large: 1) there
More informationHow are substances transported within cells and across cell membranes?
EXERCISE 5 Name How are substances transported within cells and across cell membranes? Objectives After completing this exercise, you should be able to: Describe the kinetic theory of matter and explain
More informationWeek 1 EOC Review Cell Theory, Cell Structure, Cell Transport
Week 1 EOC Review Cell Theory, Cell Structure, Cell Transport Benchmarks: SC.912.L.14.1 Describe the scientific theory of cells (cell theory) and relate the history of its discovery to the processes of
More informationCell Structure and Function
CHAPTER 3 CELL STRUCTURE AND FUNCTION Vocabulary Practice cell theory vacuole concentration gradient cytoplasm lysosome osmosis organelle centriole isotonic prokaryotic cell cell wall hypertonic eukaryotic
More informationBSC 2010 - Exam I Lectures and Text Pages. The Plasma Membrane Structure and Function. Phospholipids. I. Intro to Biology (2-29) II.
BSC 2010 - Exam I Lectures and Text Pages I. Intro to Biology (2-29) II. Chemistry of Life Chemistry review (30-46) Water (47-57) Carbon (58-67) Macromolecules (68-91) III. Cells and Membranes Cell structure
More informationCleaning Fluids: Soaps and Detergents
Cleaning Fluids: Soaps and Detergents Outcomes: Students will be expected to: Relate personal activities in formal and informal settings to specific science disciplines. (109-10) Provide examples of scientific
More informationBiology Chapter 7 Practice Test
Biology Chapter 7 Practice Test Multiple Choice Write the letter that best answers the question or completes the statement on the line provided. 1. The work of Schleiden and Schwann can be summarized by
More informationDIFFUSION (HYPERTONIC, HYPOTONIC, & ISOTONIC SOLUTIONS) THE GUMMY BEAR LAB PASS
DIFFUSION (HYPERTONIC, HYPOTONIC, & ISOTONIC SOLUTIONS) THE GUMMY BEAR LAB PASS Have you ever wondered why your fingers have wrinkles after soaking in a bath tub? Your students have probably wondered the
More informationCELLS An Introduction to Cell Structure & Function
CELLS An Introduction to Cell Structure & Function Introduction: In this lab exercise we will be studying three general aspects of cellular structure and function. First, we will observe the anatomical
More informationDrexel-SDP GK-12 ACTIVITY
Drexel-SDP GK-12 ACTIVITY Subject Area(s): Biology Associated Unit: None Associated Lesson: None Activity Title : Plant or Animal Cell? Grade Level: 7 and 8 (7-9) Activity Dependency: None Time Required:
More informationProcess of Science: Using Diffusion and Osmosis
Process of Science: Using Diffusion and Osmosis OBJECTIVES: 1. To understand one way to approach the process of science through an investigation of diffusion and osmosis. 2. To explore how different molecules
More informationCh24_PT MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Ch24_PT MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Substances originating in plant or animal material and soluble in non-polar organic solvents
More informationQuick Hit Activity Using UIL Science Contests For Formative and Summative Assessments of Pre-AP and AP Biology Students
Quick Hit Activity Using UIL Science Contests For Formative and Summative Assessments of Pre-AP and AP Biology Students Activity Title: Quick Hit Goal of Activity: To perform formative and summative assessments
More informationCELL ANALOGY: AIRPORT. By: Joe Behrmann and Isaac Thompson
CELL ANALOGY: AIRPORT By: Joe Behrmann and Isaac Thompson MITOCHONDRIA Location: The Mitochondria of a cell is located in both plant and animal cells. They are found floating throughout the cell. Function:
More informationCHAPTER 13: SOLUTIONS
CHAPTER 13: SOLUTIONS Problems: 1-8, 11-15, 20-30, 37-88, 107-110, 131-132 13.2 SOLUTIONS: HOMOGENEOUS MIXTURES solution: homogeneous mixture of substances present as atoms, ions, and/or molecules solute:
More informationCells, Diffusion, Osmosis, and Biological Membranes
Cells, Diffusion, Osmosis, and Biological Membranes A. Objectives Upon completion of this lab activity, you should be able to: 1. Define and correctly use the following terms: solute, solvent, selectively
More informationOrganic Compounds. Essential Questions: What is Organic? What are the 4 major Organic Compounds? How are they made? What are they used for?
Organic Compounds Essential Questions: What is Organic? What are the 4 major Organic Compounds? How are they made? What are they used for? Aristotle: Francesco Redi: What do we already know? Spontaneous
More informationChapter 11 Properties of Solutions
Chapter 11 Properties of Solutions 11.1 Solution Composition A. Molarity moles solute 1. Molarity ( M ) = liters of solution B. Mass Percent mass of solute 1. Mass percent = 1 mass of solution C. Mole
More information4. Which carbohydrate would you find as part of a molecule of RNA? a. Galactose b. Deoxyribose c. Ribose d. Glucose
1. How is a polymer formed from multiple monomers? a. From the growth of the chain of carbon atoms b. By the removal of an OH group and a hydrogen atom c. By the addition of an OH group and a hydrogen
More informationCarbon-organic Compounds
Elements in Cells The living substance of cells is made up of cytoplasm and the structures within it. About 96% of cytoplasm and its included structures are composed of the elements carbon, hydrogen, oxygen,
More informationLab 4 Cell Structure, Osmosis, and Diffusion
Lab 4 Cell Structure, Osmosis, and Diffusion Introduction: Connecting Your Learning The basic building block of life is the cell. Each cell contains several structures, some of which are common to both
More information