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8.3 Respiration

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Question 1
F

A student used the apparatus in the Figure to investigate the rate of respiration of woodlice.

Figure

image

Soda lime absorbs carbon dioxide.

a.

Give one reason why the woodlice are placed on a wire gauze.

[1]
b.

The drop of coloured liquid moved towards the woodlice.

Explain why.

[3]
c.

The drop of coloured liquid moved 24 mm in 8 minutes.

Calculate the rate of movement of the drop in mm per minute.

[1]
d.

The student wants to find the effect of temperature on the rate of respiration of the woodlice.

Give two variables the student should control.

[2]
Markscheme

8.3 Respiration Questions

  1. GCSE
  2. /Biology
  3. /8.3 Respiration

42 exam-style questions on Edexcel GCSE Biology 8.3 Respiration, covering 8.3.1 Aerobic and anaerobic respiration. Each one has a worked solution and a mark scheme showing where the marks go.

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