Which part of the brain controls body temperature, hunger, and thirst? MCQ with Answer and Explanation

Explanation:
GIP (glucose-dependent insulinotropic peptide), released by the small intestine, inhibits gastric acid secretion and motility, and stimulates insulin release. Gastrin stimulates acid secretion, secretin stimulates bicarbonate, CCK stimulates gall bladder contraction. GIP was originally named for its gastric inhibitory effect.

Explanation:
Thiamine pyrophosphate (TPP), derived from vitamin B₁, is a cofactor for pyruvate dehydrogenase, which catalyzes the oxidative decarboxylation of pyruvate to acetyl-CoA. Riboflavin is FAD, niacin is NAD, pyridoxine PLP for transamination.

Explanation:
Vitamin C is a cofactor for prolyl and lysyl hydroxylases in collagen synthesis. Deficiency leads to impaired wound healing and scurvy.