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“Went from a C to a B+ in three weeks.”

Emma R., second-year Biology
  • Midterm 2023
  • Midterm 2024
  • Final 2024
BIOL 201 Cell BiologySpring 2026

Mock Examination

Time allowed: 2 hours. Answer all questions. Total: 48 marks.

  1. Explain how enzyme activity changes with pH, and describe one mechanism a cell uses to buffer its cytosol.

    [8 marks]
  2. A culture is treated with a drug that blocks ATP synthase. Predict the effect on the proton gradient across the inner mitochondrial membrane and justify your answer.

    [10 marks]
  3. Compare glycolysis and the pentose phosphate pathway in terms of location, main products and regulation.

    [12 marks]
  4. The diagram shows a signalling cascade from lecture 9. Identify the second messenger and explain how the signal is amplified.

    [8 marks]
  5. Outline the stages of mitosis and state one checkpoint that prevents division of a cell with damaged DNA.

    [10 marks]

Same format and difficulty as your three past papers. A worked answer follows every question.

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How it works

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  2. It studies your exam

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  3. Take a practice exam

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  4. See what to fix

    Every answer is explained, and shows the page it came from.

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  • Question 3 of 10

    What drives ATP synthase?

    Not quite. ATP is what the enzyme makes, not what drives it.Lecture 9 · p. 14

    Correct. Protons flow back through ATP synthase, and that flow powers it.Lecture 9 · p. 14

    Not quite. Oxygen is the last electron acceptor, not the enzyme’s fuel.Lecture 9 · p. 14

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    Quizzes

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Add old exams and your class files. Aprovement sees how your exam looks and how it is marked. Then it writes a new one from your files and explains every answer.

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