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Molecules A and B come into contact with the cell membrane of
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Molecules A and B come into contact with the cell membrane of the same cell. Molecule A passes through the membrane readily, but molecule B does not. Which statement could describe molecules A and B?

  1. Molecule A is a protein, and molecule B is a fat.
  2. Molecule A is a starch, and molecule B is a simple sugar.
  3. Molecule A is an amino acid, and molecule B is a simple sugar.
  4. Molecule A is a simple sugar, and molecule B is a starch.
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Question Text
Molecules A and B come into contact with the cell membrane of the same cell. Molecule A passes through the membrane readily, but molecule B does not. Which statement could describe molecules A and B?
TopicAll topics
SubjectBiology
ClassClass 11