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8 Student: ___________________________________________________________________________

1. __________ is the process by which certain organisms capture energy from sunlight and use it to build energy-rich food molecules. ฀ ฀ A. Metabolism B. Photosynthesis C. Respiration D. Energy 2. In the _____ reactions of photosynthesis, electron carrier molecules are reduced and ATP is synthesized. ฀ ฀ A. light B. dark C. energetic D. chemical 3. Each pigment molec A. pigment B. absorption C. emission D. energy 4. The wavelengths ab light-excited electro A. radiation B. electron C. energy D. photosynthetic

_ levels to which the

5. Plants and algae use A. photosystem B. pigment C. emission D. electron ฀

6. The Calvin cycle is A. NAD+ B. NADH C. NADP+ D. NADPH

7. Even though the Calvin cycle reactions require the products of the light reactions, its reactions can occur in the _______. ฀ ฀ A. light B. dark C. root D. cold 8. In eukaryotes, photosynthesis takes place inside the ________. ฀ A. chloroplasts B. mitochondria C. cytoplasm D. Golgi apparatus

฀

9. Clusters of chlorophyll and accessory pigments are called ________. ฀ A. the Golgi apparatus B. chloroplasts C. photosystems D. photosynthetic membranes

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10. The ______ plants utilize a specialized carbon fixation enzyme and a unique cell structure to reduce the problems of photorespiration. ฀ ฀ A. C3 B. C4 C. desert D. arctic 11. _______ adapted plants such as cacti, pineapples, etc. show a pattern of stomatal opening and closing that is the reverse of C3 plants. ฀ ฀ A. C3 B. Arctic C. CAM D. Calvin cycle 12. The general process the membrane throu A. chemiosmosis B. ATP synthesis C. diffusion D. active transport

can flow back across ___________. ฀ ฀

13. Carbon fixation occ A. glycolysis B. metabolism C. respiration D. the Calvin cycle

hesis. ฀

14. Carbon atoms of CO A. carbon reduction B. carbon synthesis. C. carbon fixation. D. carbon activation E. carbon oxidation

฀

reactions called ฀

15. Most plants incorporate carbon dioxide into sugars by means of a cycle of reactions called the ฀ A. CAM cycle. B. carbon cycle. C. Calvin cycle. D. Krebs cycle. E. electron transport cycle. 16. Flattened sacs of internal membranes associated with photosynthesis are called ฀ A. chloroplasts. B. photosystems. C. the stroma. D. thylakoids. E. cristae.

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17. In green plant photosynthesis, the electron donor for the light dependent reaction is ฀ A. carbon dioxide. B. oxygen. C. RuBP. D. chlorophyll II. E. water.

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18. In the dark reactions of photosynthesis, CO2 is added to a five-carbon sugar-phosphate known as ฀ A. cyclic AMP. B. NADH. C. NAD+. D. RuBP. E. CAM. 19. Which of the following scientists is not associated with studies on photosynthesis? ฀ A. Blackman B. Jan Ingenhousz C. Krebs D. Calvin E. Van Niel

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20. Light consists of uni A. electrons. B. photons. C. protons. D. neutrons. E. pigments. 21. Visible light has a w A. 400-700 nanome B. 200-800 nanome C. 200-400 nanome D. 200-700 nanome E. 0.001-100,000 na 22. Sunburn is caused b A. infrared rays B. X rays C. gamma rays D. ultra violet rays E. long wavelength rays 23. Molecules that absorb light are called ฀ A. enzymes. B. electron carriers. C. pigments. D. photosynthesizers. E. absorbers.

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24. The connection between carrots and vision is that the b-carotene of carrots can produce two molecules of vitamin A and oxidation of vitamin A produces a pigment used in vertebrate vision. This pigment's name is ฀ ฀ A. chlorophyll. B. ferredoxin. C. cytochrome. D. carotene. E. retinal.

25. Chlorophyll b absorbs in green wavelengths of light that chlorophyll a cannot absorb. In this respect, chlorophyll b acts as ฀ ฀ A. an accessory pigment. B. an energizer for photosynthetic bacteria. C. a light absorber in the green light. D. a more efficient pigment. 26. The photosystem channels the excitation energy gathered by absorption of light by any one of the pigment molecules to a specific "reaction center chlorophyll," which in turn passes the energy to ฀ A. photosystem I. B. photosystem II. C. the primary electron acceptor. D. the secondary electron center. E. cytochrome.

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27. Which of the following is common to both cellular respiration and the light reactions of photosynthesis? ฀ ฀ A. the transfer of electrons to glucose B. the chemiosmotic formation of ATP C. oxygen is one of the byproducts D. mitochondria are E. must have light 28. In the photosystem I molecule called ฀ A. P680. B. P700. C. chlorophyll I. D. chlorophyll II. E. retinal.

passed on to a special

29. Photosystem II abso energy to a pigment A. P680. B. P700. C. chlorophyll I. D. chlorophyll II. E. retinal.

I, but similarly pass this

30. Photosystem II diffe process. ฀ ฀ A. ATP B. NADH C. NADPH D. carbohydrates E. water 31. The dark reactions of photosynthesis are those that ฀ A. convert chlorophylls into enzymes. B. convert enzymes into chlorophylls. C. convert water into hydrogen and oxygen. D. convert CO2 into reduced molecules (sugars). E. only occur in the dark.

ectly from the

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32. In dark reactions, when CO2 is added to a molecule of RUBP the product is ฀ A. citric acid. B. glucose. C. glyceraldehyde-3-phosphate. D. phosphoglycerate. E. pyruvate. 33. The cyclic carbon fixation reactions are also known as the ฀ A. Krebs cycle. B. Calvin cycle. C. citric acid cycle. D. tri carboxylic acid cycle. E. Blackman cycle.

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34. How many revolutions of the Calvin cycle are required to produce the sugar glucose? ฀ A. 2 B. 3 C. 4 D. 5 E. 6

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35. In which part of the A. stroma B. thylakoids C. grana D. envelope E. cristae 36. The photosynthetic chloroplast? ฀ ฀ A. matrix B. stroma C. envelope D. outer membrane E. internal thylakoid

h part of the

37. Embedded in the thy there are ฀ ฀ A. enzymes that fix B. proton channels t C. chlorophyll a and b. D. P680 and P700. E. specialized bundle sheath cells.

face into the stroma,

38. What products of light reactions of photosynthesis are used in the Calvin cycle? ฀ A. oxygen and protons B. carbon dioxide and water C. ATP and NADPH D. ADP and NADP E. glucose and oxygen 39. CO2 is released without the production of ATP or NADPH. This process is called ฀ A. carbon fixation. B. oxygen fixation. C. photophosphorylation. D. photorespiration. E. photooxidation.

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40. The loss of carbon fixing activity of the enzyme RuBP carboxylase is directly proportional to ฀ A. high temperatures and high light intensities. B. low temperature and low light intensities. C. completely dark conditions. D. lack of carbon dioxide. E. lack of oxygen. 41. One of the disadvantages of the C4 pathway is that it requires ฀ A. more O2. B. more NADPH. C. more light. D. more ATP. E. a much higher temperature.

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42. A method devised by succulent desert plants to reduce the problem of photorespiration is ฀ A. the C3 pathway. B. the CAM metabolism. C. the Calvin cycle. D. light reactions. E. nitrogen fixation.

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43. Most of the atmosph molecules is the oxy A. water B. carbon dioxide C. glucose D. chlorophyll

of the following

44. A scientist is hoping weed species in part of these thylakoids, A. stromal enzymes B. chlorophyll. C. ATP. D. glucose. E. NADPH.

e has found that one de will open the pores

45. C. B. van Niel used dioxide and hydroge the oxygen? ฀ ฀ A. water B. carbon dioxide C. glucose D. chlorophyll

n involved carbon molecule is split to form

46. If chlorophyll a is blocked from absorbing, what will happen to chlorophyll b since it is an accessory pigment? ฀ ฀ A. Chlorophyll b will become denatured and will not function as a light-absorbing pigment. B. Chlorophyll b will still absorb near the green wavelengths of light, but photosynthesis will be greatly reduced. C. Chlorophyll b will become saturated with light and will continue photosynthesis even in the absence of chlorophyll a. D. Chlorophyll b will also be blocked and thus photosynthesis will be stopped.

47. Carotenoids are important to many plants because these pigments are able to ฀ ฀ A. remove carbon dioxide from the air. B. absorb wavelengths of light that neither chlorophyll a nor b can absorb. C. absorb water so that hydrolysis can be carried out in the chloroplasts. D. capture UV radiation that is harmful to the DNA in the nucleus of plant cells. E. store electrons for use during the "dark" reaction of photosynthesis. 48. Engelmann (1883) determined the wavelengths of light that plants could use most effectively. He used a green algae and __________ to obtain his results. ฀ ฀ A. another green algae B. anaerobic bacteria C. aerobic bacteria D. radioactive isotopes E. a mass spectrometer 49. Engelmann (1883) discovered that the wavelengths of light that chlorophyll most strongly absorbed were ฀ ฀ A. in the red-violet wavelengths of the visible light spectrum. B. in the green wavelength of the visible light spectrum. C. in the yellow-orange wavelengths of the visible light spectrum. D. in the ultraviolet E. in the infrared wa 50. Fall leaf color on de A. the production of B. the reduction in t C. cessation of chlo Dthe increased angle . human eye to see t

. mperatures. e revealed. ry pigments causing the een chlorophyll.

51. In the plants that uti A. The stomata ope B. The stomata open C. The stomata open D. The stomata ope 52. Which of the follow A. primary photoev B. charge separation C. Calvin cycle D. electron transport E. chemiosmosis 53. The Calvin cycle requires all of the following except ฀ A. carbon dioxide. B. oxygen. C. ATP. D. NADPH. E. water.

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54. Shortest wavelength and highest-energy photons within the visible spectrum; one of the regions where chlorophylls absorb. ฀ ฀ A. green B. violet-blue C. red D. ultraviolet E. yellow-orange

55. Visible light not strongly absorbed by chlorophyls. ฀ A. green B. violet-blue C. red D. ultraviolet E. yellow-orange

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56. High energy component of the electromagnetic spectrum; associated with sunburn. ฀ A. green B. violet-blue C. red D. ultraviolet E. yellow-orange 57. Apparent color of chlorophylls. ฀ A. green B. violet-blue C. red D. ultraviolet E. yellow-orange

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58. Visible light with lo absorb. ฀ ฀ A. green B. violet-blue C. red D. ultraviolet E. yellow-orange

ons where chlorophylls

59. Jean Baptista van H soil, after weighing experiment five yea by 57 kg. The prima A. oxygen in the air B. carbohydrates ab C. the water he adde D. CO2 in the air.

willow tree in a pot of the conclusion of the ght of the soil decreased ฀

60. Your class project in would be the most h A. glow in the dark stickers and a UV light B. glow in the dark stickers and an infrared light C. a prism and a visible light source D. a prism and a UV light source

e following materials

61. Which of the following statements supports the fact that chlorophyll a is not the only pigment involved in photosynthesis? ฀ ฀ A. The rate of photosynthesis is low at wavelengths when the absorption by chlorophyll a is high. B. The rate of photosynthesis is high at wavelengths when the absorption by chlorophyll a is low. C. The rate of photosynthesis is low at wavelengths when the absorption by chlorophyll a is low. D. The rate of photosynthesis is high at wavelengths when the absorption by chlorophyll a is high. 62. You are working to isolate pigments from a cyanobacteria species recovered from the ocean floor. Which of the following would you most likely expect to find? ฀ ฀ A. chlorophyll a B. chlorophyll b C. phycobiloproteins D. carotenoids

63. Your research project involves a mutational analysis of the light harvesting complex Lhca1. Your labmate asks if you are working on a cytochrome found in the outer membrane of the chloroplast. You explain that: ฀ ฀ A. Yes, I am working on a cytochrome located in the outer chloroplast membrane. B. I am working on a cytochrome, but it is located in the thylakoid membrane, not the outer chloroplast membrane. C. I am working on a protein found in the antenna complex and it is located in the thylakoid membrane. D. Although it is located in the outer membrane of the chloroplast, I am working on a protein found in the antenna complex. 64. Which of the following would not be considered to be a function of the antennae complex in photosynthesis? ฀ ฀ A. enables a wide use of the visible light spectrum B. enables an efficient light reaction C. provides adaptability to varying light conditions D. acts as reaction center 65. Emerson and colleagues discovered the enhancement effect while studying photosynthesis in green algae. The algae were illuminated with light of either 680 nm or 700 nm, and the rate of photosynthesis was measured. The researchers found that the rate of photosynthesis when the lights were applied simultaneously was individually. These results provided evid A. photosynthesis is B. photosynthesis is C. photosynthesis is gth of 690 nm. D. photosynthesis is 66. What did the radioa A. Calvin cycle enz B. carbon compoun C. cellular debris fro D. carbon dioxide g 67. Which of the follow and the reaction inte A. exposing the cell B. exposing the cell C. exposing the cell D. varying other rat

equence of reactions

68. Which of the following statements best describes the relative concentrations of G3P and RuBP in a chloroplast as a result of a transition from daytime (light) to nighttime (dark)? ฀ ฀ A. The concentrations of G3P and RuBP would remain the same. B. The concentrations of G3P and RuBP would both decrease. C. G3P would increase and RuBP would decrease. D. G3P would decrease and RuBP would increase. 69. During electron transport, the thylakoid space becomes ฀ A. the site of ATP synthesis. B. the site of NADPH production. C. less acidic than the stroma. D. more acidic than the stroma.

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70. The plant hormone abscisic acid (ABA) is involved in the regulation of photorespiration. Based on this information, ABA likely plays a role in ฀ ฀ A. the opening and closing of stomata. B. the photoelectric effect. C. cyclic photophosphorylation. D. noncyclic photophosphorylation.

71. If you exposed a C4 plant to 14CO2 in the light, which of the following would be the first organic molecule labeled with 14C? ฀ ฀ A. oxaloacetate B. malate C. pyruvate D. phosphoenolpyruvate (PEP) 72. Under what circumstances would increasing light intensity not result in an increase in the rate of photosynthesis? ฀ ฀ AAt any given time, the rate of photosynthesis is limited by the factor which is in the shortest supply. . Therefore, if a factor other than light is limited, increasing the light intensity would not result in an increase in the rate of photosynthesis. BAt any given time, the rate of photosynthesis is limited by the factor which is in the greatest supply. . Therefore, if a factor other than light is in surplus, increasing the light intensity would not result in an increase in the rate of photosynthesis. C At any given time, the rate of photosynthesis is at its peak. Therefore, increasing the light intensity . would not result in an increase in the rate of photosynthesis. 73. Describe the conflict between a plant's need to undergo photosynthesis and its need to conserve water when it is in short supply. Briefly state how plants overcome this problem. ฀ ฀ complish this task AFor photosynthesis en, however, plants . by opening and clo also lose water vap f photosynthesis. To overcome this prob BFor photosynthesis complish this task . by opening and clo en, however, plants also lose water vap f photosynthesis. To overcome this prob CFor photosynthesis complish this task by . opening and closin however, plants gain water. This gain ca em, plants undergo transpiration. ฀

8 Key฀ 1.

2.

3.

4.

5.

__________ is the process by which certain organisms capture energy from sunlight and use it to build energy-rich food molecules. ฀ ฀ A. Metabolism B. Photosynthesis C. Respiration D. Energy Blooms Level: Remember฀ Raven - Chapter 08 #1฀ Section: 8.01฀ Topic: Plants฀

In the _____ reactions of photosynthesis, electron carrier molecules are reduced and ATP is synthesized. ฀ ฀ A. light B. dark C. energetic D. chemical

Blooms Level: Remember฀ Raven - Chapter 08 #2฀ Section: 8.01฀ Topic: Plants฀

Each pigment mo A. pigment B. absorption C. emission D. energy

The wavelengths light-excited elec A. radiation B. electron C. energy D. photosyntheti

Blooms Level: Remember฀ Figure: 8.05฀ Raven - Chapter 08 #3฀ Section: 8.03฀ Topic: Plants฀

____ levels to which the

Plants and algae use a two-stage _________ in the light dependent reactions. ฀ A. photosystem B. pigment C. emission D. electron

฀

Blooms Level: Remember฀ Raven - Chapter 08 #4฀ Section: 8.03฀ Topic: Plants฀

Blooms Level: Remember฀ Raven - Chapter 08 #5฀ Section: 8.04฀ Topic: Plants฀

6.

7.

8.

9.

10.

11.

The Calvin cycle is driven by ATP and _____ produced in the light reactions. ฀ A. NAD+ B. NADH C. NADP+ D. NADPH

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Blooms Level: Remember฀ Figure: 8.18฀ Raven - Chapter 08 #6฀ Section: 8.06฀ Topic: Plants฀

Even though the Calvin cycle reactions require the products of the light reactions, its reactions can occur in the _______. ฀ ฀ A. light B. dark C. root D. cold

In eukaryotes, photosynthesis takes place inside the ________. ฀ A. chloroplasts B. mitochondria C. cytoplasm D. Golgi apparat

Clusters of chlor A. the Golgi app B. chloroplasts C. photosystems D. photosyntheti

The ______ plan the problems of p A. C3 B. C4 C. desert D. arctic

฀

Blooms Level: Remember฀ Raven - Chapter 08 #7฀ Section: 8.06฀ Topic: Plants฀

Blooms Level: Remember฀ Raven - Chapter 08 #8฀ Section: 8.05฀ Topic: Plants฀

Blooms Level: Remember฀ Raven - Chapter 08 #9฀ Section: 8.04฀ Topic: Plants฀

ell structure to reduce

Blooms Level: Remember฀ Figure: 8.22฀ Raven - Chapter 08 #10฀ Section: 8.07฀ Topic: Plants฀

_______ adapted plants such as cacti, pineapples, etc. show a pattern of stomatal opening and closing that is the reverse of C3 plants. ฀ ฀ A. C3 B. Arctic C. CAM D. Calvin cycle

Blooms Level: Remember฀ Figure: 8.24฀ Raven - Chapter 08 #11฀ Section: 8.07฀ Topic: Plants฀

12.

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14.

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16.

17.

The general process whereby protons accumulate on one side of a membrane and can flow back across the membrane through ATP synthase resulting in ATP production is called ________________. ฀ ฀ A. chemiosmosis B. ATP synthesis C. diffusion D. active transport Blooms Level: Remember฀ Figure: 8.15฀ Raven - Chapter 08 #12฀ Section: 8.05฀ Topic: General฀

Carbon fixation occurs during the dark reactions, or ____________, in photosynthesis. ฀ A. glycolysis B. metabolism C. respiration D. the Calvin cycle

฀

Blooms Level: Remember฀ Raven - Chapter 08 #13฀ Section: 8.06฀ Topic: Plants฀

Carbon atoms of CO2 are incorporated into organic molecules in a series of dark reactions called ฀ A. carbon reduct B. carbon synthe C. carbon fixatio D. carbon activa E. carbon oxidat

Most plants inco A. CAM cycle. B. carbon cycle. C. Calvin cycle. D. Krebs cycle. E. electron trans
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