Question

The lock-and-key mechanism refers to

Answer 1

this is actually no question that belongs here, because you can find answers on this kind of question, if you type 'lock and key mechanism' into google.

if you are having further questions on the matter, feel free to ask.

Answer 2

WELCOME TO OPENSTUDY !(:

Answer 3

@Schleifspur That answer reminds me of the old linux forums. When some one asked a question that had an answer in the manual all the responses would simply be, "RTFM" or "read the f****** manual."

@wendy1230 Yes you can just google it, but in a biological context it is used to refer to the specificity and fit of enzymatic proteins (lock) and their substrate (key).