Exploring the World of Cells: Structure & Function
Science
Year 9
12 questions
~24 mins
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About This Worksheet
A worksheet covering Cells - Structure & Function for Year 9 students.
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Exploring the World of Cells: Structure & Function
Subject: ScienceGrade: Year 9
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Untitled Worksheet
Grade Year 9
A
Questions
Answer all questions. Show your working where appropriate.
1.
Which of the following is the function of the mitochondria in a cell?
[1 mark]APowerhouse of the cell, producing energy
BSite of protein synthesis
CContains the genetic material
DInvolved in photosynthesis
2.
What is the primary function of ribosomes?
[1 mark]AProtein synthesis
BLipid production
CEnergy production
DDNA replication
3.
True or False: The cell wall is found in both plant and animal cells.
[1 mark]4.
True or False: Chloroplasts are responsible for converting sunlight into chemical energy in plant cells.
[1 mark]5.
Explain the role of the nucleus in a cell.
[2 marks]6.
Describe the function of the cell membrane.
[2 marks]7.
What is the significance of cytoplasm in a cell?
[2 marks]8.
Calculate the surface area to volume ratio of a cell with a side length of 2 micrometers. Use the formula: SA:V = (6 * side^2) / (side^3)
[2 marks]9.
Match the following cell components to their functions:
[3 marks]1. Cell membrane
2. Lysosome
3. Golgi apparatus
AModifies and packages proteins
BRegulates entry and exit of substances
CDigests waste materials
10.
Order the following processes involved in protein synthesis:
[2 marks]1
2
3
4
5
11.
The _______ is responsible for cell respiration and energy production.
[1 mark]12.
Discuss the importance of cell differentiation and its impact on the function of multicellular organisms.
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- Created
- 12/30/2025
- Updated
- 12/30/2025
- Type
- worksheet