Cell biology

Senior High 5 questions

What cell biology means

This skill helps you understand how cells are built, how they divide, and how substances move in and out of them. It matters because these ideas explain growth, repair, and how living things stay alive.

What you will practise

Identify parts of a cell and state their functions
Match organelles to the jobs they perform
Describe mitosis and its role in growth
Explain osmosis, diffusion, and active transport
Choose the correct membrane structure in questions

Before you start

You should be comfortable with basic plant and animal cell parts. It also helps to know simple terms such as water, movement, and living processes.

Worked example

One question from this skill's own question bank, shown with its full working.

Question

Which organelle is the site of aerobic respiration?

Nucleus
Ribosome
Mitochondrion
Golgi body

Answer: Mitochondrion

Working: Mitochondria release energy through aerobic respiration.

Common mistakes to avoid

Mixing up the cell membrane and the cell wall. Remember that only the membrane controls entry and exit.
Confusing osmosis with diffusion. Osmosis is the movement of water through a semi-permeable membrane.
Using the wrong organelle for respiration. Aerobic respiration takes place in the mitochondrion.
Thinking cell division is only about reproduction. It also helps growth and repair in organisms.

Curriculum and exam alignment

Ghana GES SHS syllabusWASSCE

This topic normally appears in SHS biology when learners study cells, life processes, and transport in living things. It also supports WASSCE-style questions on organelles, membrane transport, and cell division.

Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.