Question

Which of the following best describes the structure of a protein?

a
Carbon ring(s)
b
Hydrocarbon(s)
c
Single or double helix
d
Globular or fibrous

Answer 1

I'm pretty sure its d.

Step-by-step explanation:

because a gbular protein is a protein that is round in shape, and a fibrous is a long a thin shaped protein. Which those are two kinds of proteins.