Cambridge AS & A Level Biology
1.2Cells as the basic units of living organisms
Cells as the basic units of living organisms in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic62 practice questions3 lessons
Overview
Temporary preparations and drawing (1.1.1-1.1.2) are taught with the plant and animal cell lesson covered here.
Learning objectives
What the syllabus expects you to be able to do.
- 1.2.1Recognise the organelles of eukaryotic cells (membranes, nucleus, ER, Golgi body, mitochondria, ribosomes, lysosomes, centrioles, cilia, microvilli, chloroplasts, cell wall, plasmodesmata, vacuole and tonoplast) and outline their structures and functions.
- 1.2.2Describe and interpret photomicrographs, electron micrographs and drawings of typical plant and animal cells.
- 1.2.3Compare typical plant and animal cells.
- 1.2.4State that cells use ATP from respiration for energy-requiring processes.
- 1.2.5Outline the key structural features of a typical bacterium.
- 1.2.6Compare a typical bacterium with typical plant and animal cells.
- 1.2.7State that viruses are non-cellular, with a DNA or RNA core, a protein capsid and in some an outer phospholipid envelope.
Lessons
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Eukaryotic cell ultrastructure and organelles
40 min
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Preparing slides and comparing plant and animal cells
30 min
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Prokaryotic cells and viruses
30 min
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Sample question
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