Proteins have a three-dimensional structure that gives them a specific shape and allows them to perform many different functions in living organisms.

Question

Which one of these is not a function of proteins that depends on their structure?

a
transporting proteins across the plasma membrane of the cell
b
providing support internally and externally for cellular organelles
c
translating and receiving chemical signals
d
storing energy inside the cell

Answer 1

The function that is not primarily a role of proteins, and thus does not depend on their structure, is:

d) storing energy inside the cell.

While proteins carry out a variety of functions based on their structure—such as transporting substances, providing structural support, and facilitating communication—energy storage is typically the role of carbohydrates (like glycogen) and lipids (like fats), rather than proteins.