Biology 0610 · IGCSE · Transpiration

Transpiration — practice question

Fig. 7.1 illustrates a potometer.
(a(i))[1]

State which conditions give the highest rate of water uptake in the shoot.

(a(ii))[2]

Calculate the rate of water uptake in millimetres per minute for the shoot in cool, damp air. Show your working.

(a(iii))[1]

Suggest the effect that a rise in wind speed would have on the movement of the air bubble.

(b)[2]

State the usual point of entry for water into a plant and the process involved.

(c)[3]

Describe how a plant loses water by transpiration.

(d)[1]

State the name of the tissue that carries water to the leaves.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: warm, dry air.

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