A Cell Is Surrounded by an Extremely Thin, Flexible Membrane

question 40

Multiple Choice

A cell is surrounded by an extremely thin, flexible membrane. Why is the membrane selectively permeable?

• A)It allows all substances to pass through, making it easier to absorb nutrients.
• B)It allows all organic substances to pass through, but excludes all inorganic substances that could be harmful.
• C)It allows some substances to pass through and excludes others based on size, polarity, and other factors.
• D)It does not allow any substances to pass through as they could damage the cell.

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