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CAIE A-Level Biology A2 12.2.12 Rice Adaptations to Flooding Questions

Explain rice adaptations to flooding using evidence from each question and mark scheme.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • Explain rice adaptations to flooding.

CAIE A-Level Biology A2 12.2.12 Rice Adaptations to Flooding Questions question 1

[Maximum number: 3]

Oryza is a genus of grass plants that includes the rice, Oryza sativa, a food crop.

Question (a)

(a)

Farmers flood fields of rice because this encourages faster growth and higher yields.

[ 3 ]

Question (i)

(i)

An adaptation of rice plants that allows them to grow in water is the development of aerenchyma.

State the function of aerenchyma.

[ 2 ]

Question (ii)

(ii)

State one other way in which the roots of rice are adapted to being submerged in water.

[ 1 ]
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