What is an active site?

Question

a) the part of an enzyme that binds only to the product molecules.

b) the sequence of amino acids responsible for the catalytic activity of enzymes.

c) the sequence of amino acids responsible for the structure of an enzyme

d) the specific area responsible for the activity of all proteins

Answer 1

A is my final answer...

Answer 2

A is definitely the right answer.

Answer 3

A is absolutely correct.

Answer 4

Actually, the correct answer is d, in my opinion.  Active sites generally don't bind product molecules, they bind substrates.  "b" isn't quite correct because it's not just the linear sequence that counts, it's also how they're folded that makes an active site.  "c" is definitely wrong.  Frankly, "d" isn't so great either because it's poorly worded--not all proteins are enzymes, so not all of them have active sites.  But I'd still go with "d".