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Form preview Photosynthesis homework 3 answ... Photosynthesis Homework 3 Name The paragraph below describes the events of the Calvin Cycle. Fill in the blanks of the paragraph. 1 The light independent reactions are also known as 1and 2. These reactions occur in the 3 of the chloroplast. The purpose of this stage of photosynthesis is to take the 4from the atmosphere and the high energy products of the light dependent reaction 5 and 6 and use them to form molecules of 7. 8 is combined with a 5-carbon compound known as 9to form a very unstable 6-carbon compound. This process is known as 10. This unstable 6-carbon compound breaks apart to form 2 molecules of 11 both of which are 3-carbon compounds. PGA must now be converted to another 3-carbon compound known as 12. A series of reactions involving 13 and 14 from the light dependent reactions are used to convert PGA to 15. There are two possibilities for these molecules of PGAL* 16 molecules of PGAL are combined together to form one molecule of 17. Some of the PGAL will be used to regenerate molecules of 18 so that the Calvin cycle can occur again* 19. Why are the light dependent reactions important to the Calvin cycle 20. Name three factors that affect the rate of photosynthesis. 21. PGAL is produced during the Calvin cycle. What are two possible uses of these PGAL molecules a b 22. The stomata open and close as needed* If the level of carbon dioxide dropped inside the leaf would you expect the stomata to open or close Explain your answer. 23. Describe 2 ways that the energy of ATP is used in the Calvin cycle. 24. What is carbon fixation 25. Explain the water loss dilemma that plants face each day. 26. List all of the following that are produced at some point during the photosynthetic process 1 carbon dioxide 2 oxygen 3 NADP 4 NADPH 5 glucose 6 ATP 7 ADP 8 sunlight 27. As the light intensity increases the rate of photosynthesis would 1 increase 2 decrease 3 remain the same 4 would initially increases but would soon decrease. 28. Which of the following are needed for the Calvin cycle 1 water 3 glucose 2 oxygen used during the light independent reactions 1 oxygen 2 carbon dioxide 3 ADP 4 NADPH 5 NADP 30. The carbon from carbon dioxide is combined with RuBP to form which of the following 1 PGA 2 PGAL 3 a 6-carbon compound 4 oxygen 5 carbon dioxide 1 PGA 2 PGAL 3 RuBP 4 carbon dioxide. 1 The energy of the sun is absorbed by chlorophyll* 2 The energy is provided by ATP and NADPH. 3 The energy is provided by the splitting of water molecules. 4 The removal of oxygen from carbon dioxide releases energy. 34. An increase in which one of the following would cause a decrease in the rate of 1 light intensity 2 carbon dioxide levels in the atmosphere 3 water availability 4 temperature. Fill in the blanks In the Calvin cycle combines with to form a and are 3-carbon compounds formed in the Calvin cycle. produced in the light dependent reactions. These high energy products are and. True or False 39. ATP molecules are produced during the light independent reactions.
Form preview Photosynthesis review workshee... Name Photosynthesis Review Worksheet Part A Matching Match the terms below with the correct description Chlorophyll Chloroplast Electromagnetic Spectrum Grana Light-dependent Reactions Photon Photosystem Stroma Electron Transport Chain Thylakoid 1. packet of energy energy-capturing portion of chloroplasts cannot proceed without solar energy produces ATP and NADPH energy of the chloroplast carrier molecules energy released is used for ATP synthesis cell where photosynthesis takes place which carbon is fixed and glucose molecules are formed takes place in the stroma and does not directly require solar energy where solar energy is captured and water carbon dioxide are used to create oxygen and simple sugars glucose Part B Short Answer Questions 1. What is an autotroph Give three examples. 2. Below draw a diagram of a chloroplast and label the following inner membrane outer membrane granum grana stroma thylakoid thylakoid membrane thylakoid lumen and indicate where pigments are located* 3. Explain why we see plants as green* Use information from the 4. What is NADPH How are NADPH and NADP different How does NADP become NADPH 5. Define photosynthesis in words. Write the balanced chemical equation for photosynthesis. 6. What are the reactants and the products of the light-dependent reactions Where in the chloroplasts do they occur a* Reactants b. Products c* Location 8. When a water molecule splits what does it split into What is this process called Write the balanced chemical equation for this process. 9. In what stage of the light-dependent reactions is ATP made What is this process called 10. Where does carbon dioxide in the reactions come from What happens to it What does it eventually become 11. How many molecules of CO2 enter one Calvin cycle How many ATP and NADPH are required per CO2 molecules that enter In total how many ATP and NADPH are required for the production of one C6H12O6 How many water molecules are required for the production of this glucose molecule. packet of energy energy-capturing portion of chloroplasts cannot proceed without solar energy produces ATP and NADPH energy of the chloroplast carrier molecules energy released is used for ATP synthesis cell where photosynthesis takes place which carbon is fixed and glucose molecules are formed takes place in the stroma and does not directly require solar energy where solar energy is captured and water carbon dioxide are used to create oxygen and simple sugars glucose Part B Short Answer Questions 1. What is an autotroph Give three examples. 2. Below draw a diagram of a chloroplast and label the following inner membrane outer membrane granum grana stroma thylakoid thylakoid membrane thylakoid lumen and indicate where pigments are located* 3. What is an autotroph Give three examples. 2. Below draw a diagram of a chloroplast and label the following inner membrane outer membrane granum grana stroma thylakoid thylakoid membrane thylakoid lumen and indicate where pigments are located* 3. Explain why we see plants as green* Use information from the 4. What is NADPH How are NADPH and NADP different How does NADP become NADPH 5.

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