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Year 12 Biology

Cell structure

Eukaryotic and prokaryotic cells and their organelles, the differences between cells, the principles of optical and electron microscopy, magnification calculations, cell fractionation and ultracentrifugation, and viruses as acellular particles.

Cell structure free practice

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No timer and no account needed. Check each answer as you go, then read the explanation.
1. The width of a cell in a photomicrograph is 60 mm and the real cell is 0.2 mm wide. What is the magnification?

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