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The microscope in cell studies: CAIE A‑Level Biology questions

Every CAIE A-Level Biology exam question on 1.1 The microscope in cell studies, June 2024 and the specimen papers, with its mark scheme and examiner’s report.

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240 questions

  1. Q1

    June 2024 · Paper 1

    1 mark1.1 The microscope in cell studies
    The whole paper ↗
    June 2024 Paper 1, question 1: The diagram shows a stage micrometer scale viewed with an eyepiece graticule, using a magnification of 200. 0.1 mm 0 10 20 30 40 50 60 70 80 90 100 Using the s

  2. Q1

    Specimen · Paper 1

    1 mark1.1 The microscope in cell studies
    The whole paper ↗
    Specimen Paper 1, question 1: Which definition of the magnification of a drawing of a leaf is correct? A the actual size of the leaf multiplied by the magnification of the microscope B the m

  3. Q3

    Specimen · Paper 1

    1 mark1.1 The microscope in cell studies
    The whole paper ↗
    Specimen Paper 1, question 3: Plant cells are stained and viewed using a student microscope. The light source is natural light. What could be clearly visible at u400 magnification? A cristae

  4. Q4

    Specimen · Paper 1

    1 mark1.1 The microscope in cell studies
    The whole paper ↗
    Specimen Paper 1, question 4: Which lengths are equivalent to 1 Pm? 1 1000 mm 2 0.001 nm 3 0.001 mm 4 1 000 000 nm 5 0.01 mm 6 1000 nm A 1 and 4 B 2 and 5 C 3 and 4 D 3 and 6

  5. Q1(a)

    Specimen · Paper 2

    1 mark1.1 The microscope in cell studies
    The whole paper ↗
    Specimen Paper 2, question 1(a): State how it is possible to deduce that Fig. 1.1 is a transmission electron micrograph and not a scanning electron micrograph. [1]

  6. Q1(c)

    Specimen · Paper 2

    2 marks1.1 The microscope in cell studies
    The whole paper ↗
    Specimen Paper 2, question 1(c): Calculate the actual diameter, X–Y, of the mitochondrion labelled in Fig. 1.1. Write down the formula that you will use to make your calculation. Give your answ
All 6 questions on The microscope in cell studies, as a list
  1. June 2024, Paper 1, Q1 (1 mark): The diagram shows a stage micrometer scale viewed with an eyepiece graticule, using a magnification of 200. 0.1 mm 0 10 20 30 40 50 60 70 80 90 100 Using the s
  2. Specimen, Paper 1, Q1 (1 mark): Which definition of the magnification of a drawing of a leaf is correct? A the actual size of the leaf multiplied by the magnification of the microscope B the m
  3. Specimen, Paper 1, Q3 (1 mark): Plant cells are stained and viewed using a student microscope. The light source is natural light. What could be clearly visible at u400 magnification? A cristae
  4. Specimen, Paper 1, Q4 (1 mark): Which lengths are equivalent to 1 Pm? 1 1000 mm 2 0.001 nm 3 0.001 mm 4 1 000 000 nm 5 0.01 mm 6 1000 nm A 1 and 4 B 2 and 5 C 3 and 4 D 3 and 6
  5. Specimen, Paper 2, Q1(a) (1 mark): State how it is possible to deduce that Fig. 1.1 is a transmission electron micrograph and not a scanning electron micrograph. [1]
  6. Specimen, Paper 2, Q1(c) (2 marks): Calculate the actual diameter, X–Y, of the mitochondrion labelled in Fig. 1.1. Write down the formula that you will use to make your calculation. Give your answ

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