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AP Biology Flashcards: Regulation Of Cell Cycle

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

QUESTION

Which option best distinguishes cytokinesis from mitosis?

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ANSWER

Cytokinesis divides cytoplasm; mitosis divides the nucleus. Two distinct processes that together complete cell division into daughter cells.

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AP Biology: Cell Communication and Cell Cycle

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

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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
In a cell-free extract, cyclin binds CDK to form an active complex that phosphorylates multiple substrates. A phosphatase removes these phosphates, opposing CDK signaling. When cyclin concentration is held constant, adding a phosphatase inhibitor causes substrate phosphorylation to remain high for longer, even though CDK activity is unchanged. In intact cells, sustained phosphorylation of mitotic substrates correlates with delayed exit from mitosis. Which change would most likely shorten mitotic duration in cells treated with the phosphatase inhibitor?
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