Part A Distinguishing features of prokaryotic and eukaryoti
Solution
A. Prokaryotic cells:
1. Circular chromosome not enclosed within a nuclear envelope.
2. Peptidoglycan containing cell wall.
3. 70s Ribosomes.
4. Flagella that rotate composed of flagellin.
Eukaryotic cells:
1. Linear chromosome enclosed within a nuclear envelope.
2. Mitochondria
3. Golgi Apparatus
4. Lysosome
5. Endoplasmic reticulum
6. 80s Ribosomes
7. Cellulose or chitin containing cell wall
8. Flagella that wave composed of Microtubules.
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B. Starting from Left to middle to right boxes in the diagram, the labelling is as follows:
Left: Teichoic Acid
At the bottom left: Positive
At the centre, three boxes from top to bottom in serial order: 1. Lipopolysaccharide, 2. Thick layer of peptidoglycan 3. Thin Layer of peptidoglycan
At the bottom right: Negative
Extreme Right side the four boxes in serial order from top to bottom: 1.Outer Membrane 2.Lipoprotein 3.Periplasm 4. Plasm membrane
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C. Left side : 1.Conduct for transfer of DNA from one cell to another 2. Protection from phagocytosis 3.Protection of cell from osmotic lysis 4. Location of respiratory enzymes.
Right side : 1. Genetic information of the cell 2.Protein synthesis 3.Attachment to other bacteria and surfaces 4.Motility

