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| a coenzyme present in all cells that helps enzymes transfer electrons during the redox reactions of metabolism. |
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| the reduced form of NAD+ that is one of the products of glycolysis |
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| an acceptor that temporarily stores energized electrons produced during the light reactions. |
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a primary mechanism of homeostasis, whereby a change in physiological variable that is being monitored triggers a response that counteracts the initial fluctuation. |
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the expected phenotypic ration in the F2 generation for a cross of two characters that segregate independently. |
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| a route of electron flow during the light reactions of photosynthesis that involves both photosystems and produces ATP, NADPH, and oxygen. The net electron flow is from water to NADP+. |
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| a substance that reduces the activity of an enzyme by binding to a location remote from the active site, changing its conformation so that it no longer binds to the substrate. |
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| a mutation that changes an amino acid codon to one of the three stop codons, resulting in a shorter and usually nonfunctional protein. |
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| an enzyme that hydrolyzes DNA and RNA into their component nucleotides. |
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| a dense region of DNA in a prokaryotic cell. |
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| a specialized structure in the nucleus, formed from various chromosomes and active in the synthesis of ribsomes. |
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| the building block of a nucleic acid, consisting of five-carbon sugar covalently bonded to a nitrogenous base and a phosphate group. |
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(1)an atom's central core, containing protons and neutrons. (2) the chromosome-containing organelle of a eukaryotic cell. (3) a cluster of neurons. |
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