Cambridge O Level Biology 5090/22 Paper 2 Theory May June 2025 Study Guide Questions and Answers Latest Version 2026/2027

Cambridge O Level BIOLOGY 509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025
509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022 Paper 2 Theory May June 2025.pdf
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BIOLOGY 5090/22
Paper 2 Theory May/June 2025
1 hour 45 minutes

You must answer on the question paper.

No additional materials are needed.

INSTRUCTIONS
● Answer all questions.
● Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs.
● Write your name, centre number and candidate number in the boxes at the top of the page.
● Write your answer to each question in the space provided.
● Do not use an erasable pen or correction fluid.
● Do not write on any bar codes.
● You may use a calculator.
● You should show all your working and use appropriate units.


INFORMATION
● The total mark for this paper is 80.
● The number of marks for each question or part question is shown in brackets [ ].




This document has 16 pages. Any blank pages are indicated.


DC (CJ/CB) 342063/3
© UCLES 2025 [Turn over



Cambridge O Level BIOLOGY 509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022 Paper 2 Theory May June 2025.pdf

,Cambridge O Level BIOLOGY 509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025
509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022 Paper 2 Theory May June 2025.pdf
* 0000800000002 *




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Answer all questions.

Write your answers in the spaces provided.

1 A pea seed is planted in a pot containing soil and provided with the ideal conditions for germination.
The pot is left in a dark room for 10 days.

Fig. 1.1 shows the appearance of the germinating seed on different days.


day 1 day 4 day 10




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X




Y

Fig. 1.1




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(a) Describe the conditions required for seeds to germinate.

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(b) Fig. 1.1 shows that the seed changes between day 1 and day 4.

Describe these changes and explain how they happen.




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Cambridge O Level BIOLOGY 509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022 Paper 2 Theory May June 2025.pdf

, Cambridge O Level BIOLOGY 509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025
509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022 Paper 2 Theory May June 2025.pdf
* 0000800000003 *
DO NOT WRITE IN THIS MARGIN



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(c) Fig. 1.1 shows that after 10 days the structures labelled X and Y have developed from parts
of the seed.

(i) Name the part of the seed that X has developed from.

................................................................. [1]

(ii) The seed is germinating in darkness.

Explain what causes X and Y to grow in opposite directions.
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..................................................................................................................................... [2]

[Total: 11]
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© UCLES 2025 ĬÇíñÕĥėĕáöĀėěħÝÙĥĂ
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5090/22/M/J/25 [Turn over

Cambridge O Level BIOLOGY 509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022Cambridge
Paper 2 Theory
O Level
MayBIOLOGY
June 2025.pdf
509022 Paper 2 Theory May June 2025.pdf