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25 Cards in this Set
- Front
- Back
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What purpose is served by chlorophyll and other accessory pigments in plants?
A. Plant pigments absorb solar energy B. Chlorophyll provides electrons that will be used to produce ATP C. Chlorophyll contains the enzymes needed to produce carbohydrates D. Plant pigments are needed to absorb solar energy and provide electrons that will be used to produce ATP |
Chlorophyll contains the enzymes needed to produce carbohydrates
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If plants were only able to undergo cyclic pathway, which of the following would NOT be true?
A. Plants would not produce oxygen B. Carbohydrate could still be produced but in much smaller quantities C. More NADPH would be produced during the cyclic electron pathway D. ATP production would decrease due to a smaller amount of H+ being available |
More NADPH would be produced during the cyclic electron pathway
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When an electron has been excited to a higher energy state, it can drop back...
.....There is no flourescence. This most likely indicates that... A. The red and blue light waves are reflected by the chlorophyll membrane B. Chlorophyll in solution is a different molecule than chlorophyll in a chloroplast C. Excited electrons are transferred to electron acceptors in the chloroplast D. Flourescence does not work in living cells |
Excited electrons are transferred to electron acceptors in the chloroplast
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Which of these is NOT a major photosynthetic pigment in plants?
A. Chlorophyll a B. Chlorophyll b C. Chlorophyll c D. Carotenoid pigments |
Chlorphyll c
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To what does the term "stroma" refer?
A. The double membrane of the chloroplast B. A flattened disk or sac in the cloroplast C. A stack of thylakoid membrane structures D. The central fluid filled space of the chloroplast E. The cytochrome system in the membranes of the thylakoids |
The central fluid filled space of the chloroplast
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To what does the term "grana" refer?
A. The double membrane of the chloroplast B. Flattened disk or sac in the chloroplast C. A sack of thylakoid membrane structures D. The central fluid filled space of the chloroplast |
A stack of thylakoid membrane structures
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Which of these is most likely closely associated with the process of electron transport?
A. The double membrane of the chloroplast B. a FLATTENED DISK OR SAC IN THE CHLOROPLAST d. The central fluid-filled space of the chloroplast E. The pigment complex in the membranes of the thylakoids |
The pigment complex in the membranes of the thylakoids
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Appearance of the oxygen and the beginning of aerobic life was made possible by...
A. Fermentation B. Photosystem I C. Photosystem II D. ATP hydrolysis |
Photosystem II
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Which statement is NOT true about the noncyclic electron pathway?
A. Electrons are boosted to high energy level in photosystem I B. Sunlight excites electrons in photosystem II C. It produces ATP D. It produces NADPH E. It produces carbohydrates through carbon dioxide fixation |
It produces carbohydrates through carbon dioxide fixation
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Which statement is NOT true about the cyclic electron pathway?
A. It produces ATP B. It involves Photosystem I C. It produces NADPH D. Electrons lost from photosystem I eventually return to photosystem I |
It produces NADPH
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When the stomata in a leaf close, then
A. CO2 in the air spaces in the leaf decreases B. Oxygen in the air spaces in the leaf decreases C. C3 plants carry on photorespiration, using O2 and producing PGA and CO2 D. All photosystems as well as photorespiration come to a hault E. Allchoices but the haulting of photosystems are correct |
All choices but haulting
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The major enzyme that catalyzes the reduction of CO2 is called
A. Ribulose biosphospate carboxylase (rubisco) B. Glyceraldehyde-3-phospate (G3P) C. PEP carboxylase (PEPcase) |
Ribulose biosphospate carboxylase (rubisco)
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Which statement is NOT true about C3 and C4 plants?
A. C3 plants are more successful in mild climates B. C4 plants contain chloroplasts only in part of their mesophyll cells C. C3 plants fix CO2 in the mesophyll cells D. C3 plants make glucose in the bundle of sheath cells |
C3 plants make glucose in the bundle of sheath cells
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Photorespiration is a form of
A. Fixation of carbon dioxide in C4 plants B. Fixation of carbon dioxide in c3 plants C. release of carbon dioxide in c4 plants D. Release of carbon dioxide in c3 plants |
Releace of CO2 in C3 plants
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G3P is used by plants for all of the follow EXCEPT the formation of..
A. Fatty acids B. Amino acids C. Oxygen D. Sucrose |
Oxygen
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C-4 Plants..
A. Store co2 temporarily as oxaloacetate B. Are found in hot dry climates C. Have a net photosynthetic rate of 2 to 3 times that of a c-3 plants D. All of the aboive |
All of the above
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Only portions of visible light can be taken up by chlorophyll
True or false? |
True
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Chlorophyll b is a pigment most involved in the reaction centers of photosystems
True or flase? |
False
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The first part of the noncyclic electron pathway involves the removal of electrons?
True or false? |
True
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Some bacteria use noncyclic photophosphorlyation, which odes not prouce oxygen or split water molecules
True or false? |
False
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Photorespiration is the process by which light is used to release the stored energy in carbohydrate molecules to preform all work in plant cells
True or false? |
False
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Plants that conduct C-4 metabolism are desert plants
True or false? |
False
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The light independent reactions of the calvin cycle occur in the thylakoids
True or false? |
False
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Phosphoenylpyruvate caroxylase fixes carbon dioxide to PEP to form oxaloacetate
True or flase? |
True
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The light dependent reactions of a photosynthesis occur in the stroma of the chloroplast
True or false? |
True
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