Name the ion responsible for unmasking of act | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) During muscle contraction,the $Ca^{2+}$ ions play a critical role.When a signal from the motor neuron reaches the muscle fiber,$Ca^{2+}$ ions are

Vedclass · Accepted Answer

Calcium

Vedclass · Answer

(A) During muscle contraction,the $Ca^{2+}$ ions play a critical role.When a signal from the motor neuron reaches the muscle fiber,$Ca^{2+}$ ions are released into the sarcoplasm.These $Ca^{2+}$ ions bind to the $Troponin$ subunit on the actin filaments.This binding causes a conformational change in the $Troponin-Tropomyosin$ complex,which shifts the $Tropomyosin$ away from the active sites on the $F-actin$ filaments.By unmasking these active sites,the $Myosin$ heads can bind to them to form cross-bridges,leading to muscle contraction.

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

Similar Questions

Name the connective tissue sheath which surrounds the muscle bundles.

The term $refractory$ $period$ with reference to muscle tissue refers to:

The Achilles tendon is associated with which of the following muscles?

Which of the following statements regarding the types of muscles present in our body is correct?

Muscle fatigue occurs due to the accumulation of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module