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Multiple Choice
Which of the following is a primary function of membrane proteins?
A
Storing genetic information
B
Facilitating the transport of substances across the cell membrane
C
Producing ribosomes
D
Synthesizing ATP
Verified step by step guidance
1
Understand the role of membrane proteins: Membrane proteins are integral to the function of the cell membrane, which acts as a barrier and gatekeeper for the cell.
Identify the types of membrane proteins: There are various types of membrane proteins, including transport proteins, receptor proteins, and enzymes, each serving different functions.
Focus on transport proteins: Transport proteins are a type of membrane protein that facilitate the movement of substances across the cell membrane, either through passive or active transport.
Differentiate from other functions: Storing genetic information is a function of nucleic acids, producing ribosomes is a function of the nucleolus, and synthesizing ATP is primarily a function of mitochondria.
Conclude the primary function: Based on the options provided, the primary function of membrane proteins is facilitating the transport of substances across the cell membrane.