Biology 0610 · IGCSE · Tropic responses

Tropic responses — practice question

Seeds from different crop plants germinate at different temperatures. Table 2.1 gives the temperatures at which each crop plant germinates.
(a)[2]

Tick (✓) any two conclusions that match the data in Table 2.1.

(b(i))[3]

Using the information in Fig. 2.1, state the letter of the test-tube containing carrot seeds that will germinate and explain why these seeds will germinate.

(b(ii))[1]

Predict the results you would expect at 25 ^{\circ}C.

(c)[5]

Complete the statements about plant growth. After germination, seeds grow into a seedling with a shoot and a root. The plant shoot grows towards the direction of [BLANK]. This tropic response is called [BLANK]. The plant root grows into the soil towards [BLANK]. This tropic response is called [BLANK]. Root hairs form, which increase the uptake of [BLANK] and water.

Worked solution & mark scheme

This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: Carrots have the widest temperature range for germination

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