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Type: Multiple-Choice
Category: Cell Structure and Function
Level: Grade 11
Author: jdb1400
Last Modified: 6 years ago

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Cell Structure and Function Question

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Grade 11 Cell Structure and Function

What does it mean that biological membranes are selectively permeable?
  1. No substances can pass across the membrane.
  2. Some substances can pass across the membrane while others cannot.
  3. Only large molecules can pass across the membrane.
  4. Only small molecules can pass across the membrane.