1. Photosynthesis Is an ______Reaction Because It Combines Simple Molecules Into More Complex

Photosynthesis PowerPoint Question Guide

Overview

1. Photosynthesis is an ______reaction because it combines simple molecules into more complex molecules.

2. a. Is photosynthesis an endergonic or exergonic reaction?

b. Explain why.

c. Energy from the ______is stored in the bonds of the sugar ______.

3. What serves as the carbon source for photosynthesis?

4. Sunlight is absorbed as packets of energy called ______.

5. Besides CO2, ______is also used in photosynthesis to produce ______molecules such as the sugar ______.

Where Does Photosynthesis Occur?

6. Plants can make their own food so they are called ______.

7. Photosynthesis occurs mainly in the ______of plants.

8. Pores on the underside of leaves are called ______, while the cells in leaves that contain chlorophyll are called ______cells.

9. The organelle in mesophyll cells that contains chlorophyll is called the ______.

10. Name two gases exchanged through the stomata of a leaf?

11. Besides gases, ______vapor can be lost from a leaf.

12. Sketch a stoma and label the cells that open and close the pore. Include arrows to show the direction of gas movement.

13. In what cell in a leaf does photosynthesis occur? Sketch and label one of these cells.

14. Sketch and label a chloroplast.

15. How many membranes does a chloroplast have?

16. Describe the outer membrane of a chloroplast.

17. What is the thick fluid in the inside of a chloroplast called?

18. ______are organelles containing chlorophyll.

19. Stacks of thylakoids are called ______and are ______to each other.

20. Grana make up the ______membrane of a chloroplast.

Why Plants Are Green?

21. Why are plants green?

22. a. Chlorophyll molecules are located in the ______membranes and harvest light ______.

b. Chlorophyll has a ______ion in their center.

23. Chlorophyll and other pigments absorb ______of light from 400nm to 700nm.

24. Chlorophyll absorbs ______and ______colors of light the best.

Fall Colors

25. During the fall, what happens to the amount of chlorophyll being produced by plants?

26. ______are plant pigments that include ______, orange, and ______colors.

27. Why do leaves turn colors in the fall?

28. What is a redox reaction?

29. ______is the loss of electrons, while ______is the addition or gaining of electrons.

30. Write the summary equation for photosynthesis and label each compound.

31. ______is oxidized and ______is reduced in photosynthesis.

Cellular Energy 32. What is the ultimate energy for life on Earth?

33. Plants store ______in the chemical bonds of ______.

34. Chemical ______is released from sugars during ______.

35. ATP stands for ______.

36. Name the parts of ATP?

37. Describe the bond attaching the last phosphate group to ATP.

39. What happens if the last phosphate bond on ATP is broken?

40. Name 3 things released when the last phosphate bond on ATP is broken.

41. The process of making ATP from ADP and a free phosphate is called ______.

42. Energy released from is available for cellular ______.

Parts of Photosynthesis

43. Name the first part of photosynthesis.

44. Light reactions use energy from the ______to produce ______and the energy carrier ______.

45. The second part of photosynthesis is called the ______cycle.

46. Does the Calvin cycle require light energy?

47. The Calvin cycle is also called the ______fixation or the ______pathway.

48. Where do the light reactions of photosynthesis take place in a chloroplast?

49. Name the two possible routes energized electrons can take during the light reactions of photosynthesis.

50. The cyclic electron flow only uses ______I in the thylakoid membranes and has chlorophyll a molecules at the photosystem's reaction center that absorbs ______wavelength of light.

51. The only energy generated in the cyclic electron flow is ______.

53. The noncyclic electron flow uses both photosystem _____ and _____.

54. The chlorophyll molecules at the reaction center of photosystem II absorb wavelengths of ______nm. 55. The noncyclic electron flow generates the gas ______, as well as ______and the energy carrier ______.

56. Both photosystem I and II use the ______transport ______(ETC) to produce ATP.

58. Water is split in ______, while NADPH is made in ______.

59. Oxygen made by plants comes from the splitting of ______.

49. ______powers ATP synthesis in plants.

50. Where does chemiosmosis occur in plants?

51. ATP is made using the ______chain and the enzyme ______.

52. ______ions move through down their concentration gradient through the ______of the enzyme ATP ______to form ATP from ______.

53.______is the energy molecule used by cells and must be remade by ATP ______or chemiosmosis.

54. ATP ______is the enzyme used to make ATP from ADP.

55. Most plants on Earth (80%) are known as ______plants and use the ______cycle to make sugars.

56. The Calvin cycle does ______require light energy and occurs in the ______of the chloroplast.

57. The energy for the Calvin cycle is ______and ______made during the light reactions.

58. The gas ______is used in the Calvin cycle to make the sugar ______.

59. When conditions are hot and dry, ______are closed to prevent water loss.

60. Name 2 plants that use different pathways to make food.

61. Give several examples of C4 plants.

62. Photosynthesis occurs in what two places in C4 plants?

63. C4 plants make a ______carbon sugar called malate in the mesophyll cells that enters bundle sheath cells.

64. The Calvin cycle takes place in ______sheath cells in C4 plants.

65. Name two CAM plants.

66. CAM plants ______their stomata during the hot day and ______them at night.

67. In CAM plants, the ______reactions occur during the day, while the ______cycle occurs at night when the stomata open and let ______enter.

68. By closing their stomata during the day, CAM plants conserve ______.