The cross bridges in a myofibril, arise in the heads of................ molecule.

Myosin

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Actin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Tropomyosin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Elastin

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Myosin
Sarcomeres are composed of thick filaments and thin filaments. The thick filaments lie at the centre of the sarcomere and overlap the thin filaments. The thick filaments are comprised of an elongated protein, called as myosin. Each myosin molecule is shaped like a golf club, with the head of the golf club pointed out from the surface of the thick filament. This structure forms the cross bridge, that binds to the thin filament.

Suggest Corrections

Similar questions

What is the correct sequence of events in the cross bridge formation?

i. The power stroke

ii. Cross bridge formation

iii. Myosin head is activated by ATP

iv. Calcium released binds to the troponin unblocks the actin sites

v. Cross bridge detachment

vi. Reactivation of the myosin head

What is the correct sequence of events in the cross bridge formation?

i. The power stroke

ii. Cross bridge formation

iii. Myosin head is activated by ATP

iv. Calcium released binds to the troponin unblocks the actin sites

v. Cross bridge detachment

vi. Reactivation of the myosin head

5 \times 10^{- 30} C - m

+ e

- e

Join BYJU'S Learning Program