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CAIE IGCSE Biology 22.2.1 Select and Safely Use Techniques and Apparatus Questions

Practise choosing apparatus, controlling variables and taking accurate biological measurements using safe, repeatable procedures.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • select apparatus to measure volume, movement, mass or elapsed time for a stated rate
  • read a measuring cylinder accurately at eye level from the bottom of the meniscus
  • control and monitor temperature with a water bath, insulation or thermometer
  • remove surface water before weighing to measure sample mass accurately

CAIE IGCSE Biology 22.2.1 Select and Safely Use Techniques and Apparatus Questions question 1

[Maximum number: 2]

Some students set up the apparatus shown in Fig. 6.1 to compare transpiration in two sets of leaves.

Set A was kept in a transparent bag and set B was left in the open air.
All other conditions were kept constant.
The mass of the leaves in each set was measured at the start of the investigation and after five hours.

Fig. 6.1

Fig. 6.1

The students needed two additional pieces of apparatus to take measurements so that they could calculate the rate of transpiration from their results.

State the two additional pieces of apparatus the students needed to take the measurements.

1

2

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