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CAIE IGCSE Biology 6 Plant Nutrition Questions

Practise photosynthesis equations, leaf adaptations, limiting factors and experimental evidence for plant carbohydrate production.

Syllabus
2026–2028
Course
Biology 0610

Covered syllabus points

6.1 Photosynthesis6.2 Leaf structure

Question 1

[Maximum number: 1]

Which substance is used up in photosynthesis?

A

chlorophyll

B

light

C

oxygen

D

water

Question 2

[Maximum number: 1]

The following can be used to write a word equation for photosynthesis.
1 carbon dioxide and water

2 light and chlorophyll
3 glucose and oxygen
Which shows a correct word equation for photosynthesis?

A

1→21 \rightarrow 2 in the presence of 3

B

1→31 \rightarrow 3 in the presence of 2

C

2→32 \rightarrow 3 in the presence of 1

D

3→13 \rightarrow 1 in the presence of 2

Question 3

[Maximum number: 1]

The diagram shows part of a cross-section of a leaf.
Which structure is a palisade mesophyll cell?

Figure for Question 3 — CAIE IGCSE Biology
A

A

B

B

C

C

D

D

Question 4

[Maximum number: 1]

Which structure contains the pigment that transfers energy from light into chemical energy?

A

chloroplast

B

mitochondrion

C

nucleus

D

ribosome

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