Question

Which of the following protein functions is not correctly associated with its correct integral protein?

• A. Carrier proteins-passage of molecules through the membrane
• B. Enzymatic proteins-carry out metabolic reactions directly
• C. Channel proteins-block the activity of carrier proteins
• D. Cell recognition proteins-recognize pathogens

Answer 1

Answer: (C)

Channel proteins-block the activity of carrier proteins

Channel proteins and carrier proteins are the two classes of membrane transport proteins across the lipid bilayer. Carrier proteins transport through both active or passive while channel proteins transport solute through passive transport only.

So, the correct statement is 'Channel proteins - blocks the activity of carrier proteins'.