Prokaryotic cells

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9 Terms

1
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<p>Label this diagram</p>

Label this diagram

  1. ribosomes

  2. nucleoid (DNA)

  3. plasma membrane

  4. cell wall

  5. capsule

  6. plasmid

  7. pili

  8. cytoplasm

  9. flagellum

<ol><li><p>ribosomes</p></li><li><p>nucleoid (DNA)</p></li><li><p>plasma membrane</p></li><li><p>cell wall</p></li><li><p>capsule</p></li><li><p>plasmid</p></li><li><p>pili</p></li><li><p>cytoplasm</p></li><li><p>flagellum</p></li></ol><p></p>
2
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What material is the prokaryotic cell wall made up from?

A glycoprotein called murein/peptidoglycan

3
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What type of ribosome do prokaryotic cells contain?

70S ribosomes

4
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What are ribosomes made up from?

Two subunits of protein and rRNA

5
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What gene is often located in the plasmids?

Antibiotic resistance gene

6
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What is the capsule and what is it made up from?

  • Slimy layer on outside of the cell

  • Protein

7
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What are the two functions of the capsule?

  • Prevents prokaryotic cell from desiccating (drying out)

  • Helps to cover antigens on outside of cell, protecting it from the host’s immune system

8
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What is the function of flagella?

Rotates enabling prokaryotic cell to move

9
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What is the nucleoid

Single circular DNA molecule which is not membrane bound or associated with histone proteins