AP Biology Unit 2 flashcards
Fifteen cards on Cell Structure and Function — the facts this unit is actually tested on: organelles and their functions, the endomembrane system, surface-area-to-volume ratio, membrane structure and fluidity, passive and active transport, tonicity, water potential. Read them here, no sign-up. When you want cards from your own class notes instead of someone else's, paste them into FlashDeck and you have a deck in seconds.
Last updated: 24 September 2026
The AP Biology Unit 2 deck
| Question | Answer |
|---|---|
| Which organelle synthesizes proteins? | Ribosomes. |
| Which organelle generates most ATP? | Mitochondrion. |
| Which organelle carries out photosynthesis? | Chloroplast. |
| Which organelle modifies, sorts, and packages proteins? | Golgi apparatus. |
| Which organelle hydrolyzes macromolecules? | Lysosome. |
| Which structures are part of the endomembrane system? | Nuclear envelope, ER, Golgi, lysosomes, vacuoles, plasma membrane. |
| How does surface-area-to-volume ratio change as a cell grows larger? | It decreases. |
| What model describes membrane structure? | Fluid mosaic model. |
| How do unsaturated fatty acids affect membrane fluidity? | They increase fluidity. |
| What are the types of passive transport? | Diffusion, facilitated diffusion, and osmosis. |
| What is active transport? | Movement of molecules against their gradient using ATP. |
| What happens to an animal cell in a hypertonic solution? | It loses water and shrinks/crenates. |
| What happens to a plant cell in a hypotonic solution? | It becomes turgid due to water uptake. |
| What is the water potential formula? | Ψ = Ψs + Ψp. |
| How does adding solute affect water potential? | It lowers water potential by making solute potential more negative. |
How to actually remember these
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Other AP Biology units
AP Biology Unit 1 · AP Biology Unit 3
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