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Biochemistry: Core Concepts MCQs

Waraq Pharm-D Review: Biochemistry · Pharm-D / Pharmacy · 15 practice questions

1. A competitive inhibitor of an enzyme:

  1. ADenatures the enzyme
  2. BDecreases Vmax only
  3. CLowers both Km and Vmax
  4. DIncreases the apparent Km with no change in Vmax
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D. Increases the apparent Km with no change in Vmax Raising substrate concentration can overcome it.

2. Lactose intolerance is due to deficiency of:

  1. AAmylase
  2. BLactase
  3. CMaltase
  4. DSucrase
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B. Lactase Lactose is not digested and ferments in the colon.

3. A peptide bond forms between:

  1. AA hydroxyl and a carboxyl group
  2. BA carboxyl group and an amino group
  3. CTwo carboxyl groups
  4. DTwo amino groups
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B. A carboxyl group and an amino group Water is released in the condensation.

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