B2 - Bacteria and Yeast
- Created by: Charlotte
- Created on: 08-04-13 16:19
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- Bacteria and Yeast
- bacteria are very small and can only be seen with a powerful microscope
- bacterial cells have a cell membrane and a cell wall which surround cytoplasm
- bacteria do not have a nucleus so the genetic material is in the cytoplasm
- when bacteria multiply they form a colony. Bacterial colonies can be seen with the naked eye
- yeast is a single-celled organism
- yeast cells have a nucleus, cytoplasm and membrane surrounded by a call wall
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