Ch. 4 ATP & Photosynthesis

Transcription

1 Name: Biology G Vocabulary Section 4.1 Ch. 4 ATP & Photosynthesis Period: ADP Adenosine Diphosphate ATP Adenosine Triphosphate Chemosynthesis Vocabulary Section 4.2 Photosynthesis Chlorophyll Thylakoid Stroma Light-Dependent Reactions Light- Independent Reactions Calvin Cycle 1

2 Biology: ATP & ADP Section 4.1 Use the diagram below to answer the questions that follow. phosphate removed 8. What does the picture above represent? 9. The molecule that has three P s attached to it is called? 10. The molecule that has two P s attached to it is called? 11. What is released when one phosphate (P) bond is broken off from the top molecule?. 12. What is a source of stored energy for our cells? Use the Section Organisms break down carbon-based molecules to produce ATP, to answer the following. 13. What three carbon based molecules do organisms break down tom make ATP? 14. Which of the three yields (makes) the most ATP? 15. Which of the three is less likely to be broken down to make ATP? 2

3 Biology: ATP & ADP Sections 4.1 Study the Energy Map: Use the energy map to answer the questions. Questions: 1. How is ATP formed? 2. Where is the energy stored in an ATP molecule? 3. How does ATP give energy to the cell? 4. What is left after an ATP molecule loses a phosphate group? 5. What things make up ADP? 3

4 Biology: Photosynthesis Section 4.2 Fill in the boxes on the below diagram with the missing words from the choices given. CO2 H2O Sugar Thylakoid Stroma O2 Sunlight Chloroplast = Determine if the statement is true. If it is not, rewrite the italicized part to make it true. 1. Photosynthesis is the process plants use to trap the sun s energy to make glucose. 2. ATP molecules are made during the light-independent reactions of photosynthesis. 3. Carbon dioxide gas is produced during photosynthesis. 4. The light-dependent reactions of photosynthesis take place in the membranes of the thylakoid discs in mitochondria.. 5. The thylakoid membranes contain chlorophyll and other pigments that absorb sunlight. 4

5 Biology: ATP & Photosynthesis Review Vocabulary Complete each statement with a choice from below: Light-independent reactions Light-dependent reactions photosynthesis Chlorophyll Chloroplast electron transport chain ATP 1. The reactions in photosynthesis in which light energy from the sun is converted to chemical energy are called. 2. The process by which plants trap the sun s energy to build carbohydrates (sugars) is called. 3. The transfer of electrons along a series of proteins, releasing energy as they pass, is known as an. 4. is a pigment that absorbs most wavelengths of light except green. 5. The organelle that carries out photosynthesis is the. 6. In photosynthesis, the cycle of reactions that uses carbon dioxide to synthesize glucose is known as the. Formula for Photosynthesis: Choose from the list below, the pieces that fit into the formula for photosynthesis. Each choice will be used! Correctly fill in the reactants and products. CO2 O2 Sugars (Glucose) Sunlight H2O + + Matching: Match the word with the correct statement Stroma ADP P (phosphate) Calvin Cycle Pigment Sun 1. The ultimate source of energy for plants. 2. One of the end products after ATP has released it s energy, has two phosphates. 3. Energy is released from ATP when the last is broken off of it. 4. Another name for the light-independent reactions. 5. The spot in a chloroplast where the Calvin Cycle takes place. 6. A light absorbing molecule found in plants, most common is green. 5

6 Biology: ATP & Photosynthesis Skills Building An experiment was done to study the effects of light intensity on a plant s growth. The data gathered from this experiment is below. Look over the data and create a data table of that data in the given outline; using the THUMB method. Data: Each of the light intensities are listed in watts (w) and next to each is the individual plant growth seen in centimeters (cm) at that intensity. At 10 w the plant grew 0 cm, 15 w it grew 2 cm, 30 w it grew 3 cm, 40 w it grew 4 cm, 50 w it stayed the same at 4 cm, 60 w it grew 12 cm, 75 w it grew 8 cm, 100 w it grew to 2 cm, and at 200 w it had no growth (0 cm). Data Table: Create your data table here! 6

7 Biology: ATP & Photosynthesis Skills Building Creating a Graph using TASTE: Use the information from your table you created on the previous page about light intensity and plant growth to create an appropriate graph. Use the TASTE method and create the graph below in the given grid. Analysis Questions: 1. What is the independent variable in this experiment? 2. What axis does the independent variable belong on ( x or y); circle your answer. 3. What is the dependent variable in this experiment? 4. What axis does the dependent variable belong on ( x or y); circle your answer. 5. Which light intensity worked the best for plant growth? 6. Why did the plant not grow under the 200 watt bulb?. 7