Sample Questions

Glycolysis
			A)	requires the presence of oxygen.
			B)	is the first step of cellular respiration.
			C)	produces carbon dioxide and water.
			D)	utilizes FAD as an electron acceptor.
2		Lactic acid
			A)	is produced as a result of aerobic metabolism of glucose.
			B)	is one of the normal end products of glycolysis.
			C)	is a common end product of red blood cells.
			D)	none of the above.
3		Which of the following is not true of the Krebs cycle?
			A)	Three molecules of NADH are produced per molecule of glucose.
			B)	Two molecules of FADH2 are produced per molecule of glucose.
			C)	Addition of acetyl CoA to oxaloacetic acid starts the cycle.
			D)	GTP is produced and converted to ATP.
4		Glycogen stored in which of the following tissues can be used to produce free glucose?
			A)	the liver.
			B)	the heart.
			C)	the skeletal muscle.
			D)	all of the above.
5		The product of beta oxidation is metabolized by the actions of
			A)	glycolysis.
			B)	the Krebs cycle.
			C)	gluconeogenesis.
			D)	the Cori cycle.
6		Amino acid metabolism involves all of the following except
			A)	oxidative deamination.
			B)	transamination.
			C)	the Krebs cycle.
			D)	beta oxidation.
7		A lack of blood glucose would have the greatest effects on
			A)	the brain.
			B)	the heart.
			C)	the liver.
			D)	skeletal muscles.
8		The primary energy source of resting skeletal muscles is/are
			A)	lactic acid.
			B)	ketone bodies.
			C)	glucose.
			D)	fatty acids.
9		Metabolism of triglycerides utilizes
			A)	glycolysis.
			B)	beta-oxidation.
			C)	the Krebs cycle.
			D)	all of the above.
10		The common intermediate of carbohydrate, protein and lipid metabolism is
			A)	ammonia.
			B)	pyruvic acid.
			C)	acetyl CoA.
			D)	phosphoglyceraldehyde.