Igcse Model Questions Vol1 2025 Biology Question 1

Practice essay / theory question 1 from the 2025 Igcse Model Questions Vol1 Biology examination. This question covers Cell Structure .

Igcse Model Questions Vol1 2025 Biology Essay / Theory
Topic: Cell Structure
Question 1 IGCSE_MODEL_QUESTIONS_VOL1 • 2025 • BIOLOGY • essay

The labelled diagram shows a typical animal cell with the parts numbered as follows: 1 = cell membrane, 2 = cytoplasm, 3 = nucleus, 4 = nucleolus, 5 = mitochondrion, 6 = ribosome.

Question Parts

( a )
State the main function of each of the following structures: nucleus, mitochondrion and ribosome.
( b )
Explain how the cell membrane regulates the movement of substances into and out of the cell, making reference to the diagram.
( c )
Compare the structure of the cell membrane with that of a typical plant cell wall and explain why the plant cell wall is important.

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About This Question

This is Igcse Model Questions Vol1 2025 Biology Question 1. It is one of the essay questions from the 2025 Igcse Model Questions Vol1 Biology examination.

The question covers Cell Structure .

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