WAEC Biology 2011 Theory — Question 1

Question 1 of 27 from the West African Examinations Council (WAEC) Biology 2011 Theory paper, with the correct answer and a full explanation.

PART I (Answer two questions only from this part) 1(a)(i) What is the effect of gravity on plant growth?

Model answer

The root grows towards gravity (i.e. exhibits positive geotropism) while the shoot grows away from gravity (i.e. exhibits negative geotropism).

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