Exam 4: Cellular Metabolism

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Copying DNA information into an mRNA molecule is called

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If the DNA triplet ACA mutates to GCA, then the encoded amino acid changes from _____ to _____.

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Adenine and guanine are ________ and cytosine and thymine are ______. or or or

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A metabolic pathway is a particular sequence of enzyme-controlled reactions.

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A example of genetic change is the presence of certain DNA sequences in different numbers of copies in different individuals.

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If one strand of DNA has the sequence TCAGGCTATTCCCG, then the complementary sequence of the other strand is

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A DNA strand of ACTTCGCATG, when replicated, would yield a strand of the same sequence.

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A glucose molecule is broken down into two pyruvic acid molecules in

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A DNA sequence AACGGTGCACCACGG encodes an mRNA of sequence

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Proteins are critical to metabolism because all proteins are enzymes.

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Which of the following is an example of catabolism?

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The electron transport chain is a series of enzyme complexes that pass electrons, releasing energy that is used to phosphorylate ADP to ATP on the inner mitochondrial membrane.

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A rate-limiting enzyme usually acts at the end of a metabolic pathway.

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For each acetyl CoA molecule that enters the citric acid cycle, 2 ATPs, 16 H atoms, and 4 CO2 molecules are produced.

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An example of an anabolic reaction is

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Dehydration synthesis reactions _____, whereas hydrolysis reactions _____.

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Which of the following is true?

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A mutation that changes a CGC codon to CGA would not affect health because the encoded amino acid is unchanged.

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The anaerobic reactions of cellular respiration occur in the _____, whereas the aerobic reactions of cellular respiration occur in the ______.

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One reason protein synthesis is important is that

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