A

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Q. All enzymes are protein which are

  • (A) globular
  • (B) fibrous
  • (C) helical
  • (D) all of these
  • Correct Answer - Option(A)
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Explanation by: Admin

Enzymes are primarily globular proteins.

  • Globular proteins are spherical or oval-shaped and are water-soluble, which makes them suitable for biochemical reactions.
  • Enzymes function as biological catalysts, speeding up chemical reactions in living organisms.
  • Their specific 3D structure allows them to bind with substrates efficiently.

Why not the other options?

  • (B) Fibrous – Fibrous proteins (like collagen, keratin) provide structural support, but they are not enzymes.
  • (C) Helical – Some enzymes may have helical structures (like alpha-helices in their secondary structure), but not all enzymes are helical.
  • (D) All of these – Incorrect because enzymes are mainly globular, not fibrous.

Thus, the correct answer is (A) Globular.

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