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MDCAT
Biology
2021

Biology · Enzymes

Work through this past-paper style MCQ, then read the full explanation. Practice more biology questions on mMCQ with adaptive practice and topic analytics.

Question

Which one forms the raw material for coenzymes?

Options
  • A

    Vitamins

  • B

    Carbohydrates

  • C

    Lipids

  • D

    Proteins

Explanation

Most coenzymes are vitamins or are derived from vitamins. Vitamins are organic compounds that are essential in very small (trace) amounts for the maintenance of normal metabolism.

Most coenzymes are vitamins or are derived from vitamins. Vitamins are organic compounds that are essential in very small (trace) amounts for the maintenance of normal metabolism.

Carbohydrates do not form the raw material for coenzymes. However, carbohydrates are an important source of energy for the body and are broken down through a series of enzymatic reactions that require coenzymes.

Lipids do not form the raw material for coenzymes. However, certain types of lipids, such as phospholipids, are important components of cell membranes and play a role in the function of certain membrane-bound enzymes.

Proteins do not form the raw material for coenzymes. However, certain amino acids that make up proteins, such as cysteine and methionine, are precursors for coenzymes.

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Tagged under Biology · Enzymes · 2021