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AP Biology Flashcards: Membrane Permeability

Study Membrane Permeability in AP Biology with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Identify a type of passive transport.

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ANSWER

Diffusion. Movement down concentration gradients without energy input.

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AP Biology: Cells

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What this deck covers

This deck focuses on Membrane Permeability, giving you a quick way to review the definitions, rules, and examples that matter most for AP Biology.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set
A phospholipid bilayer has a hydrophobic interior. A solute's permeability depends on how well it can enter this nonpolar region. Small, nonpolar molecules cross readily; polar molecules cross slowly; large polar molecules cross very slowly; ions cross least. Compare two uncharged molecules: ribose (a 5-carbon sugar with multiple hydroxyl groups) and isopropanol (a 3-carbon alcohol with one hydroxyl group). No transport proteins are present. Which molecule would most likely be more permeable across the bilayer?
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