Cell structure

Draw a bacterial prokaryotic cell and identify the following structures: capsule, wall

cell, cell membrane, cytoplasm, ribosomes, nucleoid, frimbrae, flagellum, plasmid and

sexual pili. (5 points)

2. Say the function of the structures mentioned in the previous question. (5 points)

3. Bacteria can be classified according to the composition of the cell wall in gram positive

or gram negative. Select the correct answer for each characteristic. For example:

Peptidoglycan layer, thick or thin. You choose whether it is thick or thin. 

Gram Positive Gram Negative Characteristic

to. Thick or thin peptidoglycan layer thick or thin

b. Teichoic acid present or absent present or absent

c. Outer membrane present or absent present or absent

d. Content of

lipopolysaccharides

does not have or high

concentrations

does not have or high

concentrations

and. lipid and content

lipoprotein

low or high low or high

F. Flagellar structure 2 rings or 4 rings on the

basal body

2 rings or 4 rings on the

basal body

g. Toxin that produces Exotoxins or Endotoxins

or both

Exotoxins or endotoxins

or both

h. Breakdown resistance

physical

low or high low or high

i. wall break

cell with lysozyme

low or high low or high

J. susceptibility to penicillin and

sulfonamide

low or high low or high

k. Inhibition by basic dyes low or high low or high

l. Detergent Susceptibility

anionic

low or high low or high

m. Resistance to sodium azide low or high low or high

n. Drying resistance low or high low or high

4. Explain what would happen to a bacterium if it is placed in: (3 points)

to. hypotonic solution

b. isotonic solution

c. isotonic solution

5. Name three differences between a eukaryotic cell and a prokaryotic cell. (3 point