Biology A Unit Test Cellular Energy – Flashcards
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What is the main difference between aerobic respiration and anaerobic respiration?
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Aerobic respiration requires oxygen to proceed, but anaerobic respiration does not.
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What is the input of the light-dependent reactions, labeled X?
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H20 and light
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Chemical reaction equations, such as the one for photosynthesis, show the reactants and products of a reaction. How does this simplification misrepresent what takes place during the process of photosynthesis?
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It does not show that photosynthesis consists of many separate reactions.
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Which is an energy conversion that occurs during cellular respiration?
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ADP -----> ATP
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Hon placed aquatic plants in several test tubes that were filled with water. Then, he placed half of the test tubes in a dark closet and the other half in a well-lit room. When he recorded his data, some of the plants had formed many small bubbles on the leaves, and some did not. Which describes what Hon MOST LIKELY observed and the reason for these results?
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The plants in the light formed bubbles because they released oxygen gas.
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Which of the following can combine in a cell to convert a lower-energy molecule into a higher-energy molecule?
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ADP + P + ENERGY
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Which statement explains how ATP and its phosphate groups are related to the energy that is used in plant processes?
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ADP gains a phosphate group to create ATP; this process instantly releases energy for making sugars.
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Which statement about anaerobic respiration is true?
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Anaerobic respiration is used commercially in the production of beer, wine, bread, yogurt, and cheese.
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Which statement describes thylakoids?
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Photosystems 1 and 2 function here.
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Which term describes stacks of thylakoids?
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Grana.
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Which source of energy is ideal for prolonged, low-intensity activity?
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Lipids.
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If a person did not eat for several days, which sequence of events would occur?
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Glycogen stores would be depleted first, then stored lipids, and then the structural proteins.
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Which is the word equation for photosynthesis?
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carbon dioxide + water ----> glucose + oxygen.
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What role does cellular respiration play in the water cycle?
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It releases H2O to the atmosphere during electron transport.
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Which best describes the nature of photosynthesis?
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It is an energy-storing process.
