Photosynthesis chapter 6

1. Photosynthesis chapter 6 Using the sun to make food

2. 1. Which of the following directly uses the sun’s energy to make its own food? A. Autotroph B. Chemoautotroph C. Scavenger D. Heterotroph

3. 2. Heterotrophs A. Get their energy directly from the sun B. Make food from chemicals they ingest. C. Get their energy from other organisms they eat D. Must only eat dead things in order to survive

4. 3. The five components of ATP A. Ribose, thymine, and 3 phosphates B. Ribose, adenine, and 3 phosphates C. Ribose, adenine and 2 phosphates D. Ribose, thymine, and 2 phosphates

5. 4. Energy that is stored in ATP becomes available when A. Phosphate #3 is added to the molecule • Phosphate #2 and #3 are both added to the molecule • Phosphate #3 is released with the help of an enzyme • Phosphate #2 is released with the help of an enzyme

6. 5.Energy used to make ATP comes from A. Other ATP molecules B. ADP C. The enzymes involved in the reactions D. The food we eat.

7. 6. The organelle responsible for photosynthesis is the A. Lysosome B. Mitochondria C. Epidermis D. Chloroplast

8. 7. The light reactions take place in the A. Grana B. Stroma C. Thylakoid D. Cytoplasm

9. 8. What color appears when all of the colors of the spectrum of light are absorbed A. White B. Green C. Black D. Red

10. 9. Blue has shorter wavelengths than red • A. True • B. False

11. 10. Which pigment is directly involved in the light reactions? A. Chlorophyll a B. Chlorophyll b C. Carotenoids D. Xanthophyll

12. 11. Other pigments that are present are called accessory pigments because they A. Absorb more of the same wavelengths of light as Chlorophyll A B. Absorb wavelengths of light that Chlorophyll A cannot. C. Are like coenzymes and help absorb light D. Reflect light that Chlorophyll cannot

13. 12. What is leaf part is A? A. A. Air space B. stomata C. Guard cell D. mesophyll • Palisade layer

14. 13. The end products of photosynthesis are A. glucose and oxygen B. carbon dioxide, water, and ATP C. oxygen and ATP D. lactic acid and ATP E. pyruvic acid and carbon dioxide

15. 14. Energy trapped by chlorophyll is stored A. in ATP and NADPH2 B. As radiant energy C. in coenzymes D. as an excited electron E. all of these

16. 15. Another name for the colors of the rainbow A. light pigments B. the visible spectrum C. radiant energy D. accessory pigments E. prisms

17. 16. A photon is A. Single particle of light B. Is a photo of the stream of light coming into the leaf C. Is the light that leaves the plant after glucose has been made D. What is made in the leaf and passed onto animals for energy

18. 17. Which of the following must directly have sunlight? A. PGAL formation B. glycolysis • trapping of light energy by chlorophyll • synthesis of glucose E. A, C and D

19. 18. What products from the light reaction are needed in the dark reactions? A. ADP and NADP B. Glucose and Oxygen C. Carbon Dioxide and ATP D. ATP and NADPH2

20. 19. Which two colors are absorbed the most by the chloroplast? • A. Green and Red • B. Green and Blue • C. Red and Blue • D. Yellow and Green

21. 20. What type of reaction would Photosynthesis be classified as? A. oxidation B. endergonic C. autotrophic D. exergonic

22. 21. What are 2 reactants of photosynthesis? • A. Glucose and water • B. Glucose and carbon dioxide • C. Water and carbon dioxide • D. Water and oxygen

23. 22. Pigments A. Absorb glucose in order to help absorb ATP B. Absorb wavelengths of light C. Reflect molecules of CO2 D. Reflect molecules of O2

24. 23. The food in a leaf is transported by A. phloem B. spongy cells C. xylem D. cutin

25. 24. Photosynthesis occurs in these cells in the leaf A. Spongy, palisade, guard • Cutin, palisade, epidermis • Spongy, Cutin, palisade D. Guard cells, epidermis, cutin

26. 25. The Calvin Cycle occurs in the… A. Thylakoid B. Stroma C. Grana D. Electron Transport Chain

27. 26. The energy for dark reactions comes directly from where? A. Photons B. Products from the light reactions C. Electrons energized from sunlight

28. 27. What is the energy currency for cells? A. Glucose B. ADP C. ATP

29. 28. When an enzyme adds a phosphate to an ADP molecule it becomes ATP. A. True B. False

30. 29. Photosynthetic rate depends on which of the following? A. Amount of water B. Intensity of sunlight C. Temperature D. All of the above

31. 30. Enzyme activity depends on what? A. pH B. Temperature C. Substrate concentration D. All of the above

32. 31. Water is split during what reaction(s)? A. Light Reactions B. Dark Reactions C. Both D. Neither

33. 32. NADPH + accepts hydrogen during what reaction(s)? A. Light Reactions B. Dark Reactions C. Both D. Neither

34. 33. The leaves of a plant appear green because… A. They absorb green wavelengths of light and reflect others B. They reflect green wavelengths of light and absorb others

35. 34. Converting ADP to ATP requires energy to be… A. Released B. Created C. Destroyed D. Stored

36. 35. Which of the following transports water and minerals in plants? A. Xylem B. Phloem C. Palisade layer D. Guard cells

37. 36. This leaf part controls the opening and closing of the stomata • Epidermis • Spongy layer • Guard cell • Veins

38. 37. What leaf part is B? • Cutin • Guard cell • Air space • mesophyll B.

39. 38. Cell power comes from • a change of ADP to ATP • Enzymes • formation of RuB • breaking of the chemical bond of ATP and forming ADP • breaking the ADP high energy bond