Why is it important that glucose be converted to glucose-6-phosphate once glucose enters a cell?
A. This form is easier for cells to metabolize.
B. Glucose can't diffuse out of the cell if it is in this form.
C. The cells can easily excrete this molecule.
D. It becomes a long-term storage molecule for glucose.
E. It can now cross the plasma membrane.
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Question 2) What process prepares glutamic acid for use in energy production?
A. transamination
B. oxidative deamination
C. protein synthesis
D. ketogenesis
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Question 3) Which of the following is/are possible uses of amino acids in energy production?
A. forming a ketoacid that can enter the citric acid cycle
B. forming intermediate molecules of carbohydrate metabolism
C. forming NADH that enters the electron-transport chain.
D. All of the choices are uses of amino acids in energy production.
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Question 4) Glucose, amino acids, and fatty acids can be metabolized within the cell to liberate _____.
A. oxygen
B. energy
C. carbon dioxide
D. hydrogen
E. nitrogen
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Question 5) The process that uses amino acids and glycerol to form glucose is
A. ketogenesis.
B. glycogenesis.
C. lipogenesis.
D. gluconeogenesis.
E. glycolysis.
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Question 6) The formation of glycogen from glucose is called _____.
A. glycolysis
B. glycogenesis
C. glycogenolysis
D. gluconeogenesis
E. glucogenesis
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Question 7) What is the glutamic acid made from transamination used for?
A. It enters the citric acid cycle.
B. It is used to make other nonessential amino acids.
C. It is used to produce ATP.
D. None of the choices are correct.
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Question 8) When the amine (NH2) group is stripped off of an amino acid, this amine group is converted to
A. lactic acid.
B. glucose.
C. ammonia.
D. glycerol.
E. urea.
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Question 9) What amino acid is usually formed from the transamination of another amino acid?
A. serine
B. glycine
C. aspartic acid
D. glutamic acid
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Question 10) Oxidative deamination is a chemical process in which
A. protein is synthesized.
B. amino acids are buffered in the kidney.
C. the amine group is removed from an amino acid.
D. fatty acids are broken down to yield acetyl CoA.
E. glutamic acid is produced.
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