Respiration: past paper questions
Real questions on respiration
The newest 20 of 90 written questions, plus 97 multiple-choice. Open one to see it on the real paper.
- 0970/41 · May/June 2026 · Q4b(i)[2]
State the balanced equation for aerobic respiration.
See it on the paper → - 0970/61 · May/June 2026 · Q2[6]
Plan an investigation to determine the effect of temperature on the rate of respiration in yeast.
See it on the paper → - 0970/42 · October/November 2025 · Q6c[2]
State the balanced chemical equation for anaerobic respiration in yeast.
See it on the paper → - 0970/42 · October/November 2025 · Q6d[1]
State one food product that is made using anaerobic respiration in yeast.
See it on the paper → - 0970/62 · October/November 2025 · Q1a(i)[4]
Measure the height of the yeast suspension in each of the large test‑tubes shown in Fig. 1.3. (i) Prepare a table for the results and record your measurements from Fig. 1.3.
See it on the paper → - 0970/62 · October/November 2025 · Q1a(ii)[1]
State a conclusion for the results of this investigation.
See it on the paper → - 0970/62 · October/November 2025 · Q1a(iii)[2]
State the independent and dependent variables in this investigation. independent variable dependent variable
See it on the paper → - 0970/62 · October/November 2025 · Q1a(iv)[1]
Describe how the temperature of the water‑bath could be maintained.
See it on the paper → - 0970/62 · October/November 2025 · Q1a(v)[1]
Explain why a clean syringe was used in step 3.
See it on the paper → - 0970/62 · October/November 2025 · Q1b[1]
A student extended the investigation by using more concentrations of glucose solution. Calculate the volumes of 5% glucose solution and distilled water that are needed to make 5 cm 3 of a 3% glucose solution. volume of 5% glucose solution cm 3 3
See it on the paper → - 0970/31 · May/June 2025 · Q2c[1]
State the name of the process that produces carbon dioxide in plants.
See it on the paper → - 0970/32 · May/June 2025 · Q5d(i)[2]
State the word equation for aerobic respiration.
See it on the paper → - 0970/32 · May/June 2025 · Q5d(ii)[1]
State the name of the cell structure where aerobic respiration takes place.
See it on the paper → - 0970/62 · May/June 2025 · Q1a(i)[1]
Using the information in Table 1.1, decide the volumes of S and W needed to make 50 cm 3 of a 0.5 mol per dm 3 salt solution. Complete Table 1.1 by writing in the volumes of S and W needed to make the 0.5 mol per dm 3 salt solution. Table 1.1 beaker volume of 1.0 mol per dm 3 salt solution S / cm 3 volume of distilled...
See it on the paper → - 0970/62 · May/June 2025 · Q1a(ii)[1]
Measure the total length of the 10 potato discs in Fig. 1.4. S3 total length mm
See it on the paper → - 0970/32 · October/November 2024 · Q8b[2]
State the word equation for aerobic respiration.
See it on the paper → - 0970/32 · October/November 2024 · Q8c[2]
Explain why muscle cells have a high rate of respiration.
See it on the paper → - 0970/42 · October/November 2024 · Q2b[5]
A scientist estimated the pressure and volume in the thorax during one breath. Fig. 2.2 shows a graph of the results. one breath pressure in the thorax A B time Fig. 2.2 Describe and explain the changes in the thorax that occur during section A only in Fig. 2.2. volume of air in the thorax
See it on the paper → - 0970/42 · October/November 2024 · Q2c[3]
Complete the sentences to describe the effect of carbon dioxide concentration on breathing. During physical activity, the carbon dioxide concentration of the blood . This is detected by the .
See it on the paper → - 0970/62 · October/November 2024 · Q1a(i)[4]
Prepare a table and record the results of the investigation. Convert the times on the stop-clocks in Fig. 1.1 to seconds and record these times in your table.
See it on the paper →
What examiners said
There was some confusion between respiration and photosynthesis.
— Examiner report, May/June 2025, 0970/31 Q2(c) (Cambridge)
Many candidates misread the question and gave a type of cell, rather than a structure within a cell.
— Examiner report, May/June 2025, 0970/32 Q5(d)(ii) (Cambridge)
The majority of candidates correctly determined the volumes. Some used the correct proportions but did not combine them to produce the required final volume.
— Examiner report, May/June 2025, 0970/62 Q1(a)(i) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.