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Fluid mosaic membranes: CAIE A‑Level Biology questions

Every CAIE A-Level Biology exam question on 4.1 Fluid mosaic membranes, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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240 questions

  1. Q2(b)

    June 2024 · Paper 4

    3 marks4.1 Fluid mosaic membranes
    The whole paper ↗
    June 2024 Paper 4, question 2(b): Human muscle cells show paracrine signalling. After muscle cells have been exposed to a substance called palmitate they: • produce a signalling molecule • show

  2. Q1(a)(i)

    June 2024 · Paper 2

    1 mark4.1 Fluid mosaic membranes
    The whole paper ↗
    June 2024 Paper 2, question 1(a)(i): State the approximate thickness of the membrane as shown by the line G–H. [1]

  3. Q1(a)(ii)

    June 2024 · Paper 2

    4 marks4.1 Fluid mosaic membranes
    The whole paper ↗
    June 2024 Paper 2, question 1(a)(ii): Complete Table 1.1 to show: • the names and functions of the components of the cell surface membrane • the letters of the labels in Fig. 1.1 that identify each

  4. Q10

    Specimen · Paper 1

    1 mark4.1 Fluid mosaic membranes
    The whole paper ↗
    Specimen Paper 1, question 10: The structure of phospholipids includes: 1 polar phosphate heads 2 hydrophobic fatty acid chains 3 saturated fatty acid chains. What are essential for the forma

  5. Q16

    Specimen · Paper 1

    1 mark4.1 Fluid mosaic membranes
    The whole paper ↗
    Specimen Paper 1, question 16: Which statement describes carrier proteins in cell surface membranes? A Carrier proteins are found on the outer surface of the membranes allowing cell recogniti

  6. Q19

    Specimen · Paper 1

    1 mark4.1 Fluid mosaic membranes
    The whole paper ↗
    Specimen Paper 1, question 19: In an experiment, fluorescent dyes were attached to proteins on the outer surface of cell surface membranes. Fluorescent dyes of one colour were attached to pro

  7. Q1(d)(i)

    Specimen · Paper 2

    3 marks4.1 Fluid mosaic membranes
    The whole paper ↗
    Specimen Paper 2, question 1(d)(i): Describe the fluid mosaic model of membrane structure. There is space below for a diagram. [3]

  8. Q1(d)(ii)

    Specimen · Paper 2

    4.1 Fluid mosaic membranes
    The whole paper ↗
    Specimen Paper 2, question 1(d)(ii): The inner membrane of the mitochondrial envelope is much less permeable than the outer membrane. Suggest one way in which the structure of the inner membrane of
All 8 questions on Fluid mosaic membranes, as a list
  1. June 2024, Paper 4, Q2(b) (3 marks): Human muscle cells show paracrine signalling. After muscle cells have been exposed to a substance called palmitate they: • produce a signalling molecule • show
  2. June 2024, Paper 2, Q1(a)(i) (1 mark): State the approximate thickness of the membrane as shown by the line G–H. [1]
  3. June 2024, Paper 2, Q1(a)(ii) (4 marks): Complete Table 1.1 to show: • the names and functions of the components of the cell surface membrane • the letters of the labels in Fig. 1.1 that identify each
  4. Specimen, Paper 1, Q10 (1 mark): The structure of phospholipids includes: 1 polar phosphate heads 2 hydrophobic fatty acid chains 3 saturated fatty acid chains. What are essential for the forma
  5. Specimen, Paper 1, Q16 (1 mark): Which statement describes carrier proteins in cell surface membranes? A Carrier proteins are found on the outer surface of the membranes allowing cell recogniti
  6. Specimen, Paper 1, Q19 (1 mark): In an experiment, fluorescent dyes were attached to proteins on the outer surface of cell surface membranes. Fluorescent dyes of one colour were attached to pro
  7. Specimen, Paper 2, Q1(d)(i) (3 marks): Describe the fluid mosaic model of membrane structure. There is space below for a diagram. [3]
  8. Specimen, Paper 2, Q1(d)(ii): The inner membrane of the mitochondrial envelope is much less permeable than the outer membrane. Suggest one way in which the structure of the inner membrane of

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