Top one is honeydew, second one from the bottom is onion.
The answer is letter D. Substrate; Active Site The enzyme
itself remains unchanged. It advise the
active place of an enzyme is frequently reshaped by interactions with the
substrate until the substrate is completely bound and the chemical reaction
occurs, the lock and key model.
I think the answer is D but i could be wrong
To contribute with the other answer, hope it helps
