Question

A metabolic pathway means a

• A. Route taken by chemicals through solution
• B. Sequence of enzyme-facilitated chemical reactions
• C. Route taken by a particular enzyme from one chemical reaction to another
• D. Diagram of how organic molecules evolve

Answer 1

The correct option is B Sequence of enzyme-facilitated chemical reactions

A metabolic pathway is a sequence of chemical reactions in which product of one enzyme catalyzed reaction becomes substrate for the next enzyme catalyzed reactions. Modern studies have shown that metabolic pathways do not occur sequentially one after another but occur simultaneously in a cell. Thus, metabolism is not a sequence but a complex network of a multitude of biochemical reactions occurring at the same time in a cell.

So, the correct answer is option B.