Multiple Choice
Which of the following statements is correct about a biological membrane that is fluid?
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6. The Membrane
Biological Membranes
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What is the primary function of the cell membrane?
A
To synthesize proteins
B
To produce energy for the cell
C
To store genetic information
D
To regulate the movement of substances in and out of the cell
Verified step by step guidance1
Understand that the cell membrane, also known as the plasma membrane, is a crucial component of all cells.
Recognize that the cell membrane is primarily composed of a phospholipid bilayer with embedded proteins, which provides a flexible yet sturdy barrier.
Identify the main function of the cell membrane: to regulate the movement of substances in and out of the cell, maintaining homeostasis.
Consider how the cell membrane's selective permeability allows it to control the passage of ions, nutrients, and waste products, ensuring the cell's internal environment remains stable.
Acknowledge that while the cell membrane is involved in various cellular processes, its primary role is not to synthesize proteins, produce energy, or store genetic information, but to regulate the movement of substances.
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