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Chemical control in mammals: Edexcel A‑Level Biology B questions

Every Edexcel A-Level Biology B exam question on 9.2 Chemical control in mammals, 2016–2025, with its mark scheme and examiner’s report.

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1,826 questions

  1. Q4(b)

    June 2024 · Paper 2

    1 mark9.2 Chemical control in mammals
    The whole paper ↗
    June 2024 Paper 2, question 4(b): Which of these statements are correct about the action of adrenaline? 1. adrenaline stimulates the release of second messengers inside cells 2. adrenaline binds

  2. Q2(a)(ii)

    June 2022 · Paper 2

    3 marks9.2 Chemical control in mammals
    The whole paper ↗
    June 2022 Paper 2, question 2(a)(ii): Some types of auxin affect the activity of cells in the same way as hormones such as oestrogen affect human cells. These auxins pass through the cell membrane a

  3. Q7(b)

    June 2019 · Paper 2

    3 marks9.2 Chemical control in mammals
    The whole paper ↗
    June 2019 Paper 2, question 7(b): The hormone adrenaline is unable to pass through cell membranes. When liver and muscle cells are exposed to adrenaline, the enzyme glycogen phosphorylase breaks
All 3 questions on Chemical control in mammals, as a list
  1. June 2024, Paper 2, Q4(b) (1 mark): Which of these statements are correct about the action of adrenaline? 1. adrenaline stimulates the release of second messengers inside cells 2. adrenaline binds
  2. June 2022, Paper 2, Q2(a)(ii) (3 marks): Some types of auxin affect the activity of cells in the same way as hormones such as oestrogen affect human cells. These auxins pass through the cell membrane a
  3. June 2019, Paper 2, Q7(b) (3 marks): The hormone adrenaline is unable to pass through cell membranes. When liver and muscle cells are exposed to adrenaline, the enzyme glycogen phosphorylase breaks

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