Size of specimens: past paper questions
Real questions on size of specimens
The newest 20 of 31 written questions. Open one to see it on the real paper.
- 0610/32 · May/June 2026 · Q3b(iii)[3]
The actual diameter of the root in Figure 3.1 is 2.40 mm. Calculate the radius of the root. r = mm Calculate the circumference of the root using the formula 2 πr. Use a value of 3.14 for π. Give your answer to two decimal places. Space for working.
See it on the paper → - 0610/41 · October/November 2025 · Q2c(iii)[1]
The actual diameter of the lumen of the arteriole shown in Fig. 2.3 is 0.0315 mm. Convert 0.0315 mm to micrometres (μm). [Total:15] μm
See it on the paper → - 0610/42 · May/June 2025 · Q4c(i)[1]
The mean cell wall thickness of an epidermal cell from one species of xerophyte is 1.276 μm. Convert 1.276 μm to mm. mm
See it on the paper → - 0610/62 · February/March 2025 · Q2a(ii)[3]
Line PQ on Fig. 2.1 represents the width of the oak leaf. Measure the length of line PQ on Fig. 2.1. length of PQ mm Calculate the actual width of the oak leaf using the formula and your measurement. magnification = length of line PQ in Fig. 2.1 actual width of the oak leaf Give your answer to two significant figures....
See it on the paper → - 0610/62 · February/March 2025 · Q2b(i)[1]
State the dependent variable in this investigation.
See it on the paper → - 0610/62 · February/March 2025 · Q2b(ii)[1]
State why the students used a large number of soybean plants.
See it on the paper → - 0610/62 · February/March 2025 · Q2b(iii)[2]
The students estimated the surface area of each leaf using graph paper as shown in Fig. 2.3. (iii) Fig. 2.3 Suggest how the students used the graph paper to measure the surface area of each leaf.
See it on the paper → - 0610/62 · February/March 2025 · Q2c(i)[4]
On the grid, using the data in Table 2.2, plot a bar chart to show the results of the investigation. (i)
See it on the paper → - 0610/62 · February/March 2025 · Q2c(ii)[3]
The students calculated that there was a 15.6% increase in the size of the young leaves when they were grown in full sun compared to in the shade. Calculate the percentage increase in the surface area of the old leaves that had been grown in full sun conditions compared to the old leaves that had been grown in the shad...
See it on the paper → - 0610/62 · February/March 2025 · Q2c(iii)[2]
State two conclusions from this investigation.
See it on the paper → - 0610/22 · October/November 2024 · Q6[1]
What is the actual size of the specimen?
See it on the paper → - 0610/62 · May/June 2024 · Q1b(iv)[2]
State two variables that should have been kept constant in this investigation.
See it on the paper → - 0610/62 · May/June 2024 · Q2a(ii)[3]
Measure the length of line AB on Fig. 2.1. The actual width of the seedling is 9 mm. Calculate the magnification of the seedling in Fig. 2.1 using the formula and your measurement. Give your answer to two significant figures.
See it on the paper → - 0610/42 · February/March 2024 · Q3c[3]
A student measured the root length of a bean seedling over a period of 120 hours. Fig. 3.2 shows the results. 30 20 root length / mm 10 0 0 24 48 72 96 120 time / hours Fig. 3.2 Calculate the percentage increase in root length between 48 hours and 96 hours. Give your answer to two decimal places. Space for working. %
See it on the paper → - 0610/62 · October/November 2023 · Q3a(ii)[3]
Measure the length of line PQ on Fig. 3.1. Calculate the magnification of the photograph using the formula and your measurement.
See it on the paper → - 0610/62 · May/June 2023 · Q1a(i)[1]
Record the temperature shown in Fig. 1.2.
See it on the paper → - 0610/62 · May/June 2023 · Q1a(ii)[3]
Prepare a table and record the results shown in Fig. 1.5 and your answer to 1(a)(i).
See it on the paper → - 0610/62 · May/June 2023 · Q1a(iii)[5]
Plot a line graph on the grid of temperature against time. Include all three sets of data from your table in 1(a)(ii) and a key.
See it on the paper → - 0610/62 · May/June 2023 · Q1a(iv)[2]
State two conclusions for this investigation.
See it on the paper → - 0610/62 · May/June 2023 · Q1a(v)[2]
State two variables that were kept constant during this investigation.
See it on the paper →
What examiners said
Most could convert the measurement from micrometres to millimetres. It was quite common for the answer to be expressed in standard form, although this was not a requirement for the mark. A few candidates misread the instruction and rounded the number rather than converting it to the new units.
— Examiner report, May/June 2025, 0610/42 Q4(c)(i) (Cambridge)
Many candidates measured the length of the image accurately and gave their calculated actual length correct to two significant figures. A few candidates did not round their answer or gave their answer to three significant figures, with 41.0 a common incorrect answer. The vast majority of candidates stated the length of the leaf in millimetres, as indicated by the question. Those who chose to use c...
— Examiner report, February/March 2025, 0610/62 Q2(a)(ii) (Cambridge)
Almost all candidates knew that the dependent variable for the investigation on the soybean plants was the surface area of the leaves. A few candidates stated 'area' which was too vague, and a few others gave the independent variable rather than the dependent variable.
— Examiner report, February/March 2025, 0610/62 Q2(b)(i) (Cambridge)
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