Home
Class 12
BIOLOGY
Myosin head separates from actin when :...

Myosin head separates from actin when :

A

ATP hydrolysis

B

When ATP attached to myosin head

C

When ATP releases from myosin head

D

When ATP releases from Actin

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Similar Questions

Explore conceptually related problems

Assertion : Ca^(2+) plays important role in the muscle contraction. Reason : Ca^(2+) Combines with troponin chain, displacing tropomyosin allowing the myosin head part to combine with actin to from actomyosin complex .

When a solution is separated from a solvent by a semi-permeable membrane, then the phenomenon taking place is called as

When cereals are washed before cooking. water is separated from the cereals by…………….

Archaebacteria was separated from eubacteria by Carl Woese and was given a separate kingdom. They are different from bacteria in :

Clay is separated from water by the method of…………….

Rutile is separated from chlorapatite by :

All of the following features are associated with Myosin head of heavy meromyosin ( HMM ) of muscle Protein, except

The tendency of a solution to take up water when separated from pure water by a selectively permeable membrane is called the ................ of the solution

The steps involved in the mechanism of muscle contraction are given below. Arrange the steps in proper sequential order and select the correct option. I. Release of calcium ions in the sarcoplasm. II. Signal sent by the CNS via a motor neuron. III. Binding of calcium with a subunit of troponin on actin filaments. IV. Generation of the action potential in the sarcolemma. V. Binding of myosin head to the exposed active sites on actin to form a cross-bridge. VI. Inward pulling of ‘Z’ line attached to actin causing shortening of the sarcomere. VII. Pulling of the attached actin filaments towards the centre of 'A' band. VIII. Release of neurotransmitter acetylcholine and generation of the action potential in the sarcolemma.

Which of the following statements regarding the structure of contractile proteins are correct ? I. Each actin filaments is made up of two ' F ' actins, which are wound helically around each other. II. Two types of troponins are distributed at regular intervals on the tropomyosin . III. The globular head of meromyosin has binding sites for ATP and troponins. IV myosin is a structure proteins which also has enzymatic activity.