GENERAL HISTOLOGY

MUSCLE

SKELETAL MUSCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the resting state of a sarcomere, a subunit of ____ masks the active binding sites for myosin on the actin filaments
A
Tropomyosin
B
F actin
C
G actin
D
Troponin
Explanation: 

Detailed explanation-1: -So, the correct answer is ‘Troponin’.

Detailed explanation-2: -So, the correct option is ‘Tropomyosin’.

Detailed explanation-3: -Troponin is a globular protein which is attached to the protein tropomyosin which lies on actin filaments in muscle tissue in the relaxed muscle. This blocks the attachment site for the myosin cross-bridge, thus preventing contraction.

There is 1 question to complete.