Practice Quizzes

Chapter 8: Metabolism

1: The building of tissue proteins from amino acids is an example of
catabolism.
glycolysis.
anabolism.
chain transport.
2: The coenzymes involved in energy metabolism are usually forms of
water
vitamins or minerals
protein.
complex carbohydrates.
3: During glycolysis, 1 glucose molecule is split to produce _____ molecules.
2 pyruvate
3 acetyl CoA
10 ATP
4 NADH
4: Which is the correct order of glucose catabolism?
glycolysis, electron transport, citric acid cycle
electron transport, citric acid cycle, glycolysis
glycolysis, citric acid cycle, electron transport
citric acid cycle, electron transport, glycolysis
5: Which of the following biochemical pathways is an anaerobic process?
glycolysis
citric acid cycle
electron transport chain
none of the above
6: The Cori cycle is necessary for the conversion of glucose to energy when there is a lack of
carbon.
glucose.
oxygen.
lipids.
7: Fat burns in the flame of the carbohydrates means
glucose must enter the citric acid cycle along with triglycerides.
fat takes longer to burn than carbohydrate.
glucose is the source for oxaloacetate that is needed to burn fat.
carbohydrate energy is more important than energy from fat.
8: Ketogenic amino acids can form
glucose.
acetyl CoA.
plasma proteins.
structural proteins.
9: The complete breakdown of one triglyceride molecule yields water, carbon dioxide, and substantially more ATP than the complete breakdown of one ____ molecule
amino acid
lipid
glucose
ketone
10: Transamination is most likely to occur during
negative nitrogen balance.
synthesis of a protein.
synthesis of an essential amino acid.
protein denaturation.
11: coenzyme A is a cofactor derived from the vitamin
pantothenic acid
vitamin B6
NADH
ribose
12: In which part of the cell does both the citric acid cycle and the electron transport chain take place?
mitochondrial membrane
nucleus
cytosol
cell membrane
13: After deamination occurs, what part of the amino acid remains?
diatomic oxygen
carbon skeleton
nitrogen oxide
glycerol
14: When completely oxidized, each glucose molecule yields carbon dioxide, water, and ___
glucose
amino acids
pyruvate
ATP
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