NEET Biology Digestion And Absorption Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Answer: (b)

Vitamin B complex is a group of water soluble vitamins that characteristically serve as components of coenzymes. Plants and many microorganisms can manufacture B-vitamins but dietary sources are essential for most animals. Heat and light tend to destroy B vitamins. The vitamin B complex consists of 8 different components - $B_1, B_2, B_3$, pantothenic acid, $B_6$, folic acid, biotin and $B_{12}$. Pantothenic acid functions as a part of coenzyme A in cell respiration while folic acid functions as part of coenzymes in protein and nucleic acid metabolism.