AS Bio: Cells- Prokaryotic Cells and Viruses

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  • Created by: Chenda
  • Created on: 20-08-16 20:07

Cell Wall

The cell wall is tough and protects the prokaryote, by creating a barrier between the cell and the outside environment.

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Mesosome

Are what prokaryote have instead of mitochondria they are folded multiple times to form a lining of the cell membrane. This provides a large surface area for the attempt of enzymes involved in respiration.

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DNA

Is unique genetic material that in prokaryotes, is not contained. It is free flowing in the cells cytoplasm.

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Plasmids

Are separate small circular sections of DNA that carry a few genes.

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Ribosomes

Are small organelles (70s) that are the site of protein synthesis.
They are free flowing in the cytoplasm.

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Slime Capusle

Protects the cell and keeps it moist.
It also maintains the cells shape.

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Flagella/Flagellum

Has a whip-like tail structure that allows movement for the prokaryote.

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Virus Structure

Smallest microbe is a virion
Acellular (non living)
Can only replicate inside of host cells- where is causes damage to targeted and surrounding cells

It contains nucleic acids (DNA or RNA) that code for between 5-100 different proteins. Additionally, it contains capsids, proteins made from capsomeres arranged as a helix.

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