Structure Of Contractile Proteins

Difference b/w Skeletal, Smooth and Cardiac Muscle || Structure OF Contractile Protein || Properties OF Muscles

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.

$ Rhodopsin of rod cells and iodospin of cone cells of retina are proteins ! Myosine and Actin are contractile proteins

Give one reason why Muscles contain contractile proteins?

The major contractile proteins of muscles is/are

Which of the following is the contractile protein of a muscle?