Practice Questions

A protein that functions as an antibody, playing a key role in the immune system by binding to specific antigens, is an example of a protein’s:

A. Transport function

B. Structural function

C. Defensive function ✓

D. Catalytic function

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Jun 6, 2026

The type of bond that links nucleotides together to form a polynucleotide strand (DNA or RNA) is a:

A. Glycosidic bond

B. Ester bond

C. Peptide bond

D. Phosphodiester bond ✓

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Jun 6, 2026

A patient has difficulty absorbing dietary fats. This could lead to a deficiency in which type of vitamins?

A. Water-soluble vitamins

B. Fat-soluble vitamins ✓

C. Mineral vitamins

D. Electrolyte vitamins

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Jun 6, 2026

The complete breakdown of glucose in the presence of oxygen, yielding a large amount of ATP, is called:

A. Anaerobic respiration

B. Aerobic respiration ✓

C. Fermentation

D. Glycolysis

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Jun 6, 2026

A non-competitive inhibitor of an enzyme will typically:

A. Bind to the active site.

B. Decrease the Km? of the reaction.

C. Decrease the Vmax? of the reaction without affecting Km?. ✓

D. Increase the Vmax? of the reaction.

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Jun 6, 2026

The structure of DNA allows it to store and transmit genetic information. The information is encoded in the sequence of its:

A. Phosphate groups

B. Deoxyribose sugars

C. Nitrogenous bases ✓

D. Hydrogen bonds

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Jun 6, 2026

A deficiency in Vitamin E can lead to oxidative damage to cell membranes. Vitamin E acts as a powerful:

A. Hormone

B. Coenzyme

C. Antioxidant ✓

D. Structural component

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The process of synthesizing fatty acids from acetyl-CoA is known as:

A. Beta-oxidation

B. Lipogenesis ✓

C. Lipolysis

D. Ketogenesis

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Jun 6, 2026

A patient with excessive bleeding has impaired platelet function. A certain lipid, a prostaglandin, plays a role in platelet aggregation and inflammation. This lipid is derived from:

A. Cholesterol

B. Fatty acids ✓

C. Glycerol

D. Amino acids

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Jun 6, 2026

The nitrogenous base found in RNA but not in DNA is:

A. Adenine

B. Guanine

C. Cytosine

D. Uracil ✓

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Jun 6, 2026

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Practice Questions

A protein that functions as an antibody, playing a key role in the immune system by binding to specific antigens, is an example of a protein’s:

The type of bond that links nucleotides together to form a polynucleotide strand (DNA or RNA) is a:

A patient has difficulty absorbing dietary fats. This could lead to a deficiency in which type of vitamins?

The complete breakdown of glucose in the presence of oxygen, yielding a large amount of ATP, is called:

A non-competitive inhibitor of an enzyme will typically:

The structure of DNA allows it to store and transmit genetic information. The information is encoded in the sequence of its:

A deficiency in Vitamin E can lead to oxidative damage to cell membranes. Vitamin E acts as a powerful:

The process of synthesizing fatty acids from acetyl-CoA is known as:

A patient with excessive bleeding has impaired platelet function. A certain lipid, a prostaglandin, plays a role in platelet aggregation and inflammation. This lipid is derived from:

The nitrogenous base found in RNA but not in DNA is:

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