2016 Phase II Locomotion and MovementMechanism of muscle contraction Easy Question 3 of 4 in Mechanism of muscle contraction

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

A Sodium
B Potassium
C Calcium
D Magnesium

The answer is C.

Solution

Concept calcium-unmasking

Mechanism of muscle contraction in past papers

4 questions from this chapter have appeared across 4 exam years.