Question

Which best describes the structure labeled X in the diagram?

A. A fibrous protein is providing support,

B. A membrane protein is transporting substances.

C. A large protein is attaching to substrate.

D. A globular protein is folded into different shapes.

Answer 1

Answer: B - A membrane protein is transporting substances.

Explanation: Just took the test.

Answer 2

B. A membrane protein is transporting substances.