AS Biology OCR Unit 1, Module 1 Cell Exchange and Transport- Eukaryotic and Prokaryotic

Labelled diagrams and table showing differences between Eukaryotic and Prokaryotic

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Preview of AS Biology OCR Unit 1, Module 1 Cell Exchange and Transport- Eukaryotic and Prokaryotic

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Eukaryotic and Prokaryotic Cells
Structure Eukaryotic Cell Prokaryotic Cell
Nucleus Present surrounded by a nuclear No nucleus and so no nuclear
envelope and containing a envelope or nucleolus
nucleolus
Mitochondria Present Not present
Chloroplasts Present in plant cells Not present
Endoplasmic Present Not present
Reticulum
Ribosomes Relatively large (30nm diameter) Relatively small (20nm
diameter)
Cytoskeleton Present, made up of microtubules No cytoskeleton
and microfilaments
Chromosomes DNA arranged in several long DNA circular, no histone
strands associates with histone
Cell Wall Cellulose cell wall in plant cells Cell wall made of
peptidoglycan
Cilia and Flagella Sometimes present Sometimes present (but
different structure from those
in eukaryotes).

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