Q.110
Fish Physiology and Biochemistry- ICAR JRF/SRF 2024
MCQ (Single Correct) +4 −1
Zinc is involved in
  • Biological Roles of Zinc ($Zn^{2+}$):
  • Zinc is an indispensable trace element serving as a structural or catalytic cofactor in over 300 enzymes (carbonic anhydrase, alcohol dehydrogenase, alkaline phosphatase, matrix metalloproteinases, and DNA/RNA polymerases).
  • Zinc is critical for:
  • Wound Healing and Tissue Repair: Stimulates cell division, re-epithelialization, and collagen synthesis.
  • Immune Function: Required for normal development and activity of T-lymphocytes, neutrophils, and NK cells; stabilizes zinc-finger transcription factor motifs.
    • nalysis:

  • (Wound healing and immune function): Correct.
Correct option: (2) Wound healing and immune function

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