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9 Cards in this Set
- Front
- Back
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The light reactions of photosynthesis supply the Calvin cycle with
light energy. CO2 and ATP. ATP and NADPH. H2O and NADPH. sugar and O2. |
ATP and NADPH.
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Which of the following sequences correctly represents the flow of electrons during photosynthesis?
H2O → photosystem I → photosystem II H2O → NADPH → Calvin cycle NADPH → electron transport chain → O2 NADPH → chlorophyll → Calvin cycle NADPH → O2 → CO2 |
H2O → NADPH → Calvin cycle
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How is photosynthesis similar in C4 plants and CAM plants? In both cases, rubisco is not used to fix carbon initially. Both types of plants make sugar without the Calvin cycle. In both cases, thylakoids are not involved in photosynthesis. In both cases, only photosystem I is used. Both types of plants make most of their sugar in the dark. |
In both cases, rubisco is not used to fix carbon initially |
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Which of the following does not occur during the Calvin cycle? oxidation of NADPH carbon fixation consumption of ATP release of oxygen regeneration of the CO2 acceptor |
release of oxygen |
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In the electromagnetic spectrum, the type of radiation that we call visible light occurs between _____. X-rays and ultraviolet radiation infrared radiation and radio waves ultraviolet radiation and infrared radiation infrared radiation and microwaves radio waves and microwaves |
ultraviolet radiation and infrared radiation |
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Which of the following is a product of the light reactions of photosynthesis? high-energy photons water and CO2 oxygen, ATP, and NADPH NADP+ and RuBP glyceraldehyde-3-phosphate |
oxygen, ATP, and NADPH |
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The overall function of the Calvin cycle is _____. capturing sunlight producing carbon dioxide splitting water making sugar oxidizing glucose |
making sugar |
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C4 plants occur more commonly in desert conditions because _____. they produce water as a product of their photosynthetic pathways they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed the stomata open at night and close in the day they produce carbon dioxide internally via photorespiration they store carbon by incorporating CO2 into organic acids that are later catabolized |
they can fix carbon at the lower CO2 concentrations that develop when the stomata are closed |
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What is the basic role of CO2 in photosynthesis? CO2 is a source of electrons in the formation of organic molecules. CO2 is taken in by plants as a form of inverse respiration, in which carbon dioxide is “breathed in” and oxygen is “breathed out.” CO2 is fixed or incorporated into organic molecules. |
CO2 is fixed or incorporated into organic molecules. |
