Biology 0610 · IGCSE · Homeostasis

Homeostasis — practice question

(a)[2]

State two other routes by which water leaves the body.

(b)[4]

Describe how sweat production reduces body temperature. Use Fig. 8.1 to support your explanation.

(c(i))[1]

State the amount of sweat produced by the student while carrying a 6 kg back-pack.

(c(ii))[2]

State two conclusions about how the volume of sweat produced changes with load carried during exercise. Use information from Fig. 8.2.

(d(i))[2]

Calculate the percentage increase in sweat production caused by wearing a thick track suit. Show your working.

(d(ii))[2]

Suggest why wearing a thick track suit increased the volume of sweat produced.

Worked solution & mark scheme

This 13-mark question has a full step-by-step worked solution and mark scheme. One marking point: urination / excretion

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