Proteins perform many physological functions. For example, some proteins function as enzymes. One of the following represents an additional function that some proteins perform

Options

A. antibiotics
B. pigment conferring colour to skin
C. pigment making colurs of flowers
D. hormones

Answer

D

Explanation

Most of the body functions are regulated by hormones like growth, vegetative and sexual development, thermal regulation, cellular oxidation, metabolism of carbohydrates, proteins, fats, etc. Hormones are needed in very small quantity to carry out these functions. Some hormones are proteinaceous, e.g., insulin (regulates sugar metabolism), growth hormone of pituitary, parathyride hormone parathormone (regulates calcium and phosphate transport).