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Free AP Biology Flashcards
AP Bio covers a year of content and then asks you to reason with it under time pressure — which only works if the underlying facts are instant. These cards sample the high-yield core across the course’s big ideas.
Study these 10 starter cards
QUESTION
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QWhat are the products of the light reactions of photosynthesis?
AATP, NADPH, and oxygen
QWhere does the Calvin cycle occur?
AIn the stroma of the chloroplast
QWhat is the net ATP yield of glycolysis?
A2 ATP (plus 2 NADH and 2 pyruvate)
QWhat is an enzyme’s active site?
AThe region where substrate binds and the reaction is catalyzed
QWhat does the fluid mosaic model describe?
AThe cell membrane: a flexible phospholipid bilayer with embedded, mobile proteins
QWhat is natural selection?
ADifferential survival and reproduction of individuals due to heritable trait variation
QWhat is the central dogma of molecular biology?
ADNA → RNA → protein (transcription, then translation)
QWhat is osmosis?
ADiffusion of water across a selectively permeable membrane toward higher solute concentration
QWhat is a negative feedback loop? Give an example.
AA response that counteracts a change — e.g., insulin lowering high blood glucose
QIn cellular respiration, where is most ATP produced?
AThe electron transport chain via oxidative phosphorylation (inner mitochondrial membrane)
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- One fact per card. Card the "why" behind each process, not just the steps — AP free-response questions grade explanation, not recitation.
- Rate honestly. After each card, choose Again, Hard, Good, or Easy — the spaced repetition algorithm uses your answer to decide when the card returns, right before you'd forget it.
- A few minutes daily beats marathons. Ten new cards a day is roughly 3,650 a year, retained. Deep dives: How to study for exams with flashcards · How to cram for an exam.
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