Question

All proteins have amino acids as their building blocks. Even though there are only 20 amino acids, there are more than a million different proteins, and each works in a unique way. Which of the following conclusions about a protein’s function is best supported by this information?

Answer 1

1) The amino acids reproduce in different ways, and this allows them to form many different proteins, which in turn directs the protein’s function.

2) The amino acids combine in different ways to form proteins with different shapes, and this affects which molecules can bind to it, which in turn directs the protein’s function.

3) The shape of a protein dictates when a protein will break apart into amino acids, which in turn affects the protein’s function.

4) The shape of a protein determines what amino acids it is made of and what types of reactions it can be used for, which in turn affects the protein’s function.

Answer 2

1. Amino acids dont reproduce, they are synthesized and catalyzed by the body.
3. I never heard of this being the case i.e. that the shape affects how it is catalyzed.
4. it is not the shape that determines the amino acids, but the amino acids which determine the shape.

However, 2 sounds like the best option.

Answer 3

thanks :)