Which one of the following pairs of chemical substance, is correctly categorized ?

Options

A. Calcitonin and thymosin -Thyroid hormones
B. Pepsin and prolactin-Two digestive enzymes secreted in stomach
C. Troponin and myosin–Complex proteins in striated muscles
D. Secretin and rhodopsin –Polypeptide hormones

Answer

C

Explanation

Regulated protein in actin filament is troponin that on stimulation by `Ca^(2+)` causes uncovering of actin filament as a result myosin head binds to it and function as a motor protein to convert chemical energy to mechanical energy.