Q146 / 180 · NEET 2016 (Phase 2) · Zoology

Name the ion responsible for the unmasking of active sites for myosin for cross-bridge activity during muscle contraction.

  • Correct answer
    A
    Calcium
  • B
    Magnesium
  • C
    Sodium
  • D
    Potassium

Solution

Calcium ions bind with TnC unit of troponin which is responsible for the unmasking of active sites for myosin for cross-bridge activity during muscles contraction.

Hence, the correct answer is option: 'A'.

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