In order to function properly, cells must perform many reactions. Metabolism is the sum of all the chemical reactions in an organism. During metabolism, ATP
I. is broken down to fuel chemical reactions.
II. is created by chemical reactions.
III. is shuttled from one cell to another.

Question

In order to function properly, cells must perform many reactions. Metabolism is the sum of all the chemical reactions in an organism. During metabolism, ATP
I.	is broken down to fuel chemical reactions.
II.	is created by chemical reactions.
III.	is shuttled from one cell to another.

anonymous · Answer

It depends whether you're talking about catabolism or anabolism. If you're creating new organic compounds, then it's an anabolic reaction. That way, ATP will be broken down, so as to fuel the chemical reactions. However, if you are talking about catabolic reactions, in which you aim to obtain ATP, by means of degradation of certain substances, in that case the right answer would be II.