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Biology

Quiz 5 :
How Cells Work

Quiz 5 :
How Cells Work

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The energy required for life processes must be extracted from an organism's
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B

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The illustration below indicates that photosynthesis and cellular respiration are both complementary and balanced.An excess of sugars produced fossil fuels like coal and petroleum; this suggests that in the past, img
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A

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What is the importance of photosynthesis to organisms other than plants?
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D

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Photosynthetic organisms capture energy from sunlight and convert it into chemical bonds by forming
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Photosynthesis and cellular respiration are both complementary and relatively balanced,but early history of life on Earth showed increasing oxygen concentrations.This indicates that
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Each time a person takes a breath,he or she is bringing in the oxygen he or she needs to stay alive.The ultimate source of the oxygen used by all aerobic organisms comes from a reaction that breaks down
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What would be the initial outcome of decreasing the number of photosynthetic organisms on Earth with no change in the number of organisms using cellular respiration?
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What type of reactions release energy by breaking down complex molecules?
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A chemical reaction that uses ATP to build cellular components is
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The capture and use of energy by living organisms involves numerous chemical reactions.Collectively these processes are known as
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Chemical reactions that break down lipids are
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Some kinds of drain cleaners use enzymes rather than strong,more dangerous chemicals.These enzymes must be able to
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Plants and animals use different energy storage molecules,yet they both use the same mechanism to "burn" their stored energy.How can plants and animals both be successful,even though they "burn" different energy storage molecules?
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A worker is paid every two weeks.She uses some of this money to pay for essentials and puts the remainder of her money in a savings account at a bank.The money the worker saves is analogous to the
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Which of these molecules carries the most energy?
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Which of the following is either consumed or synthesized in virtually every cellular reaction?
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When ATP breaks down into ADP and a phosphate group,
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As an energy carrier,ATP differs from NADPH in that
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Cells contain the molecule GTP (guanosine triphosphate).Would this molecule be useful as an energy carrier (similar to ATP)?
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The first law of thermodynamics states that
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