Chapter 06—WHERE IT STARTS—PHOTOSYNTHESIS. Questions and Answers - $8.49   Add to cart

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Chapter 06—WHERE IT STARTS—PHOTOSYNTHESIS. Questions and Answers

Multiple Choice 1. Chlorophyll a absorbs which color(s) of light? a. red b. green c. violet d. red, violet, and orange e. red, violet, and green ANSWER: d POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? KEYWORDS: Bloom's: Knowledge NOTES: Modified 2. The wavelength of visible light with the highest energy is: a. violet b. blue c. yellow d. orange e. red ANSWER: a POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? 3. Which pigments reflect red, orange, and yellow light? a. chlorophyll a b. phycocyanobilin c. phycoviolobilin d. carotenoids e. anthocyanin ANSWER: d POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? KEYWORDS: Bloom's: Understand 4. Which subatomic particles of a pigment absorb light? a. electrons only b. protons only c. neutrons only d. electrons and protons e. protons and neutrons ANSWER: a POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? KEYWORDS: Bloom's: Remember 5. Discrete packages of light energy are called: a. pigments b. photons c. positrons d. radioactive waves e. electromagnetic particles ANSWER: b POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? KEYWORDS: Bloom's: Remember 6. In Engelmann’s 1882 experiment, why did bacteria cluster in red or blue wavelengths of light? a. The bacteria used those wavelengths to photosynthesize. b. Algae photosynthesized best at those wavelengths, producing needed oxygen. c. The bacteria produced oxygen most efficiently using red and blue light. d. Algae photosynthesized best at those wavelengths, producing needed carbon dioxide. e. The bacteria were attracted to bright light. ANSWER: b POINTS: 1 REFERENCES: Section 6.2 Why do cells use more than one photosynthetic pigment? KEYWORDS: Bloom's: Understand 7. What are the products of the light-dependent reactions of photosynthesis? a. ADP, NADP , and sugars b. ADP, NADP , and O2 c. include ATP, NADPH and O2. d. ATP, NADPH, and CO2 e. ATP, NADPH, and sugars ANSWER: c POINTS: 1 REFERENCES: Section 6.3 What happens during photosynthesis? KEYWORDS: Bloom's: Remember 8. Plants need which molecules to carry out photosynthesis? a. H2O only b. CO2 only c. O2 only d. both CO2 and O2 e. both CO2 and H2O ANSWER: e POINTS: 1 REFERENCES: Section 6.3 What happens during photosynthesis? KEYWORDS: | Bloom's: Remember 9. Based on the accompanying diagram, in which plant cell structure do light-independent reactions occur? a. A b. B c. C d. D e. B and C ANSWER: b POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Application NOTES: Modified 10. Based on the accompanying diagram, where are the electron transfer chains of the light-dependent reactions located? a. A b. B c. D d. E e. A and C ANSWER: d POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Application NOTES: New 11. In the accompanying diagram, where are the hydrogen ions sequestered? a. A b. B c. C d. D e. E ANSWER: d POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Apply 12. In the accompanying diagram, what membrane encloses the chloroplast? a. A b. B c. C d. D e. E ANSWER: a POINTS: 1 REFERENCES: Section 6.3 What happens during photosynthesis? KEYWORDS: Bloom's: Apply NOTES: New 13. In the accompanying diagram, ATP synthase pumps hydrogen ions into what space? a. A b. B c. C d. D e. E ANSWER: b POINTS: 1 REFERENCES: Section 6.3 What happens during photosynthesis? KEYWORDS: Bloom's: Remember NOTES: New 14. Where in a plant cell is chlorophyll found? a. on the outer chloroplast membrane b. inside the mitochondria c. in the stroma d. in the thylakoid membrane e. in the plant cell wall ANSWER: d POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Understand NOTES: Modified 15. The transport of what molecules or particles across the thylakoid membrane power the production of ATP? a. electrons b. hydrogen ions c. oxygen d. carbon dioxide e. phosphate ions ANSWER: b POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Understand NOTES: Modified 16. The oxygen released during photosynthesis directly comes from: a. carbon dioxide b. glucose c. ribulose bisphosphate d. water e. atmospheric oxygen ANSWER: d POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Remember 17. The first event in photosynthesis is the: a. movement of hydrogen ions through ATP synthases b. donation of electrons from a photosystem to an electron transfer chain c. fixation of carbon dioxide d. breakdown of the thylakoid membrane e. formation of phosphoglyceraldehyde ANSWER: b POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Understand 18. The electrons that are passed to NADP during noncyclic pathways are emitted by:: a. photosystem I b. hydrogen ions c. glucose d. sunlight e. ATP synthase ANSWER: a POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Understand NOTES: Modified 19. Electrons lost by chlorophyll are replaced by electrons donated from: a. NADPH b. sunlight c. water d. carbon dioxide e. ATP ANSWER: c POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Remember NOTES: Modified 20. The flow of hydrogen ions out of the thylakoid compartment: a. provides energy to produce ATP molecules b. recharges the photosystems c. converts ATP into ADP d. causes excitation of chlorophyll molecules e. generates oxygen molecules ANSWER: a POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Remember 21. In the cyclic pathway, electrons ejected from photosystem I return to: a. photosystem II b. photosystem I c. the stroma d. the outer chloroplast membranes e. ATP synthase ANSWER: b POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Remember 22. The enzyme rubisco fixes carbon by attaching CO2 to: a. phosphoglycerate (PGA) b. ribulose bisphosphate (RuBP) c. phosphoglyceraldehyde (PGAL) d. glucose e. oxaloacetate ANSWER: b POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Remember 23. For each six atoms of carbon dioxide fixed in the light-independent reactions, how many molecules of PGAL (phosphoglyceraldehyde) are produced? a. 2 b. 3 c. 6 d. 12 e. 15 ANSWER: d POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Remember 24. Openings in leaves through which gases enter and exit are called: a. mesophylls b. xylems c. rubiscos d. stomata e. phloems ANSWER: d POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Remember 25. Which type of plants are best adapted to hot, dry conditions? a. C3 b. C4 c. CAM d. C3 and CAM e. C4 and CAM ANSWER: e POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Remember 26. What is the major gas released into the environment when organic material is burned? a. O2 b. CO2 c. N2 d. H2 e. Cl2 ANSWER: b POINTS: 1 REFERENCES: Section 6.6 Application: Green energy KEYWORDS: Bloom's: Remember Selecting the Exception 27. Four of the five answers listed below are part of light-independent reactions. Select the exception. a. water only b. carbon dioxide c. RuBP (ribulose bisphosphate) d. PGAL (phosphoglyceraldehyde) e. PGA (phosphoglycerate) ANSWER: a POINTS: 1 REFERENCES: Section 6.5 How do the light-independent reactions work? KEYWORDS: Bloom's: Understand OTHER: Selecting the Exception NOTES: Modified 28. Four of the five answers listed below are participants in photosynthesis. Select the exception. a. photosystem b. chlorophyll c. mitochondrion d. chloroplast e. thylakoid membrane ANSWER: c POINTS: 1 REFERENCES: Section 6.3 What happens during photosynthesis? KEYWORDS: Bloom's: Remember OTHER: Selecting the Exception 29. Four of the five answers listed below are processes associated with light-dependent reactions. Select the exception. a. photolysis b. electron transport phosphorylation c. carbon fixation d. photosystem I and II e. noncyclic pathways of ATP formation ANSWER: c POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Remember OTHER: Selecting the Exception NOTES: Modified 30. What accumulates inside the thylakoid compartment during light-dependent reactions? a. glucose b. hydrogen ions c. O2 d. CO2 e. ATP ANSWER: b POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? NOTES: Modified 31. Light-dependent reactions in plants occur in the ____. a. thylakoid membrane b. plasma membrane c. stroma d. cytoplasm e. stomata ANSWER: a POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Remember NOTES: Modified 32. What is a key difference between autotrophs and heterotrophs? a. Autotrophs harvest energy directly from the environment. b. Autotrophs do not require carbon. c. Autotrophs mainly break down organic compounds. d. Autotrophs harvest energy from decomposing organisms e. Autotrophs are consumers. ANSWER: a POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? KEYWORDS: Bloom's: Understand NOTES: New 33. Why would a photosynthetic organism have more than one type of pigment within their cells? a. To provide a backup source of energy if the main pigment type fails b. To direct light towards the primary pigment c. To optimize the amount of energy that can be harvested in specific environments d. To provide structural support for the primary pigments e. To allow photosynthesis to occur at any time of the day ANSWER: c POINTS: 1 REFERENCES: Section 6.2 Why do cells use more than one photosynthetic pigment? KEYWORDS: Bloom's: Apply NOTES: New 34. In the light dependent reactions of the cyclic pathway, which molecule is produced? a. sugar b. NADPH c. oxygen d. ATP e. water ANSWER: d POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? KEYWORDS: Bloom's: Understand NOTES: New 35. Letter F represents what output from light dependent reactions that is produced by both the cyclic and noncyclic reactions? a. ATP b. oxygen c. carbon dioxide d. water e. hydrogen ions ANSWER: a POINTS: 1 REFERENCES: Section 6.4 How do the light dependent reactions work? Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Apply NOTES: New 36. Which enzyme is responsible for carbon fixation? a. RuBP b. ATP synthase c. PGAL d. rubisco e. thylakoid kinase ANSWER: d POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Remember NOTES: New 37. Twelve PGAL molecules form when six CO2 are attached to six RuBP molecules. Two of these PGAL molecules are needed to form a 6-carbon sugar. What is the fate of the ten remaining PGAL molecules? a. They are degraded. b. They are converted back to carbon dioxide. c. They are stored as extra PGAL molecules. d. They are used during photorespiration. e. They are converted to RuBP molecules. ANSWER: e POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Apply NOTES: New 38. How are the ATP and NADPH molecules (made during the light-dependent reactions) used in the conversion of PGA to PGAL in the Calvin Benson cycle? a. ATP donates a phosphate group and NADPH donate electrons and hydrogen. b. ATP and NADPH both donate phosphate groups. c. ATP provides electrons and NADPH provides a phosphate group. d. ATP provides a carbon source and NADPH donates electrons and hydrogen. e. ATP donates a phosphate group and NADPH provides a carbon source. ANSWER: a POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Analyze NOTES: New 39. How is the process of carbon fixation used for a plant's growth? a. It extracts carbons from plant sugars to be used for energy. b. It fixes carbon from a PGAL molecule into a sugar. c. It extracts carbon from an inorganic source (CO2) and uses it to build sugars which plants use for energy. d. It extracts carbon from an inorganic source (CO2) to produce O2 needed for plant growth. e. It fixes carbon which is then used in the light dependent reactions to produce ATP energy. ANSWER: c POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Analyze NOTES: New 40. Which type of plant would you most likely expect to find in a hot, dry desert environment? a. A C3 plant b. A C4 plant c. A plant that fixes carbon only by the Calvin Benson cycle d. A CAM plant e. A plant that uses photorespiration ANSWER: d POINTS: 1 REFERENCES: Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Understand NOTES: New 41. Chlorophyll a is the most common photosynthetic pigment in plants. It's abundance gives plants their green color. This is because it: a. absorbs light of low wavelengths (400-500 nm) b. reflects green light c. absorbs yellow and blue light d. absorbs green light e. is a translucent pigment which does not influence the color of the plant ANSWER: b POINTS: 1 REFERENCES: Section 6.1 How do photosynthesizers absorb light? KEYWORDS: Bloom's: Understand NOTES: New Matching Choose the one most appropriate answer for each. a. Rubisco attaches CO2 to RuBP b. uses ATP and NADPH c. two PGALs combine to form a six-carbon product d. produces ATP and NADPH e. uses an electron transport system to produce ATP but not NADPH REFERENCES: Section 6.4 How do the light dependent reactions work? Section 6.5 How do the light independent reactions work? KEYWORDS: Bloom's: Remember NOTES: Modified 42. cyclic pathway ANSWER: e POINTS: 1 43. noncyclic pathway ANSWER: d POINTS: 1 44. carbon dioxide fixation ANSWER: a POINTS: 1 45. the PGA to PGAL conversion ANSWER: b POINTS: 1 46. the formation of glucose ANSWER: c POINTS: 1 The processes listed below represent major chemical pathways in the photosynthetic process. Answer the question(s) with reference to these five processes. a. light-dependent reactions in the noncyclic pathway b. light-dependent reactions in the cyclic pathway c. Calvin-Benson cycle d. C4 pathway e. photorespiration REFERENCES: Section 6.4 How do light dependent reactions work? Section 6.5 How do light independent reactions work? KEYWORDS: Bloom's: Remember OTHER: Classification Questions NOTES: Modified 47. One six-carbon sugar is formed from two molecules of phosphoglyceraldehyde. ANSWER: c POINTS: 1 48. This process yields ATP but not NADPH or oxygen. ANSWER: b POINTS: 1 49. This process involves a photolysis step, breaking water into hydrogen ions and oxygen. ANSWER: a POINTS: 1 50. This is a carbon-fixing system that precedes the Calvin-Benson cycle in some plants. ANSWER: d POINTS: 1 51. Rubisco attaches oxygen instead of carbon dioxide, to RuBP. ANSWER: e POINTS: 1 Match each with its most suitable description. a. absorbs light b. converts light to chemical energy c. organisms that make their own food d. mechanism specific to C3 plants REFERENCES: Section 6.2 - 6.7 KEYWORDS: Bloom's: Remember NOTES: Modified 52. autotroph ANSWER: c POINTS: 1 53. pigment ANSWER: a POINTS: 1 54. photorespiration ANSWER: d POINTS: 1 55. photosynthesis ANSWER: b POINTS: 1 Match the process with the correct location within the chloroplast: a. thylakoid membrane b. stroma c. thylakoid compartment REFERENCES: Section 6.4 How do the light dependent reactions work? NOTES: New 56. Electron transport chain ANSWER: a POINTS: 1 57. Calvin Benson cycle ANSWER: b POINTS: 1 58. Accumulation of hydrogen ions ANSWER: c POINTS: 1 Subjective Short Answer 59. In the accompanying figure, what photosynthetic product is "D"? 60. In the accompanying figure, the reactions at letter "A" are: a. driven by ATP b. generating water c. using NADPH d. dependent on light e. called the Calvin-Benson cycle 61. In the accompanying figure, what does letter "E" represent? a. carbon dioxide b. light energy c. glucose d. ATP e. oxygen 62. In the accompanying figure, what letter represents the thylakoids? 63. In the accompanying figure, carbon dioxide enters the reactions at letter ____. 64. How did Theodor Engelmann determine which colors of light were used in photosynthesis? 65. What is the chemical relationship between the light-dependent and light-independent reactions of photosynthesis? 66. How do C4 and CAM plants survive under dry conditions? 67. A cat eats a bird, which ate a caterpillar that chewed on a weed. Which organisms are autotrophs? Which ones are heterotrophs? 68. Photosynthetic autotrophs use ________ from the air as a carbon source and ________ as their energy source. 69. Suppose an electron transport chain that receives electrons from photosystem II fails to work during photosynthesis. How would the hydrogen ion gradient be affected? 70. What are the respective sources of energy used to run light-dependent and light independent reactions of photosynthesis? 71. Why may an algae living in deep ocean water have a different combination of pigments than a tree living above sea level? 72. Suppose a tree possesses abundant chlorophyll a pigments. Why would it benefit from also producing other types of pigments? Essay 73. About 200 years ago, Jan Baptista van Helmont wanted to know where growing plants get the materials necessary for increases in size. He planted a tree seedling weighing 5 pounds in a barrel filled with 200 pounds of soil and then watered the tree regularly. After five years, the tree weighed 169 pounds, 3 ounces, and the soil weighed 199 pounds, 14 ounces. Because the tree had gained so much weight and the soil had lost so little, he concluded that the tree had gained all of its additional weight by absorbing the water he had added to the barrel, but of course he was incorrect. What really happened? 74. While gazing into an aquarium, you observe bubbles coming from an aquatic plant. What are the bubbles and where are they coming from? 75. While going for an autumn hike in the forest, you see some trees with green leaves and others with red, yellow, and orange colored leaves. What explains the difference in the leaf color in autumn?

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