The Cell and Cell Structure

Where this fits in the syllabus

Grade 10 · Term 1

Key points to revise

Revise The Cell and Cell Structure fast with concise, exam-ready key points

About O/L Science: O/L Science integrates physics, chemistry, and biology into a single subject across Grade 10 and 11.

• All living things made of cells (cell theory)
• Animal cell: nucleus, cytoplasm, mitochondria, cell membrane
• Plant cell: all animal parts + cell wall, chloroplasts, large vacuole
• Prokaryotes (bacteria): no membrane-bound nucleus; smaller
• Diffusion: particles move high → low concentration (passive)

Must know

• Cell membrane: selectively permeable; controls entry/exit
• Plant extras: cell wall (rigidity), chloroplasts (photosynthesis), central vacuole
• Osmosis: water movement from high → low water potential across semi-permeable membrane
• Mitosis: 2 identical diploid daughter cells (growth/repair)
• Meiosis: 4 haploid gametes (reproduction/variation)

Source: NIE O/L Science Grade 10 — Unit 2: Cell Structure and Organisation

Builds toward

Related Topics

In the Syllabus