Biology

The correct statement is: A.All proteins have a unique structure that determines their unique function.

Each protein has a specific amino acid sequence that folds into a unique three-dimensional structure. This structure determines how the protein functions in the body. The function of a protein depends on its shape, which allows it to interact with other molecules in a specific way.

Let’s break down the other options:

B."Are exactly the same in function but different in structure": This is incorrect because proteins have unique functions, and their structures directly determine those functions.<...