Module 3: I. Parts of a bacterial cell

Question 1

Parts of a bacterial cell

Answer 1

Plasma membrane
Gas vacoule
Inclusions
Ribosomes
Nucleiod
Periplasmic space
Capsule and slime
Cell wall
Fibria and cillia
Flagella
Endospores

Question 2

Functions of plasma membrane

Answer 2

-selectively permeable
-mechanical boundary of the cell
-transport of nutrients and waste
-site of metabolis process (respiration and photosynthesis)
-cue for chemotaxis

Question 3

function of gas vacoule

Answer 3

-inclusion that provides bouyancy

Question 4

Function of ribosomes

Answer 4

-protein synthesis

Question 5

Function of inclusions

Answer 5

-storage site of carbon and phosphate
-site of chemical reactions

Question 6

Function of nucleoid

Answer 6

-localization of genetic material (DNA)

Question 7

Function of periplasmic space

Answer 7

-Gram- , hydrolytic enzymes and binding proteins for nutrient uptake
-Gram + (small/absent)

Question 8

Functions of Cell wall

Answer 8

• protection from osmotic stress
• maintain cell shape

Question 9

Function of capsules and slime layers

Answer 9

• resistance to phagocytosis
• adherence to cell

Question 10

Function of Fimbriae and pili

Answer 10

-attachement to surface
-bacterial conjuagtion
-transformation
-twitching

Question 11

Function of flagella

Answer 11

-swimminng and swarming motility

Question 12

Function of endospores

Answer 12

-survival under harsh environment