Becteria Structure & Functions

Question 1

Cytoplasm

Answer 1

the fluid inside the cell

Question 2

Cytosol

Answer 2

liquid portion of the cytoplasm

Question 3

Cytoskeleton

Answer 3

provide support to the structure of the cell

Question 4

Nucleoid

Answer 4

the region in the cell contains DNA information, also gives the genetic information to make

Question 5

Glycocalyx

Answer 5

Gelatinous, Sticky substance around and outside of the cell surface

Question 6

Cell wall

Answer 6

provide structure and support

Question 7

flagellum

Answer 7

for movement

Question 8

Fimbriae, Pili

Answer 8

Fimbriae are sticky Bristle like projections. they stick with another environment.
Pili is the same thing and it helps in bacterial Conjugation (transfer genetic info)

Question 9

Inclusions

Answer 9

may include extra reserve deposits of chemicals

Question 10

Cell walls - Peptidoglycan

Answer 10

provide structure and shape.
protect from osmosis
help resist antibiotics
peptidoglycan has two layers 1 Gram-Positive 2. Gram Negative

Question 11

gram-negative and gram Positive Differences

Answer 11

G. Pos.- Thick cell walls. contain Teichoic acid and Lipoteichoic acids.
look Purple after staining

G. Neg.- thin layer of peptidoglycan

           - Bilayer contain membrane outside the peptidoglycan phospholipid proteins - Contain Lipopolysaccharide. - look pink after staining

Question 12

Endospores

Answer 12

• Unique structure produced by some bacteria
• Vegetative cells (normal growing) transform into endospores when nutrients are limited.
• they resist to the extreme condition such as heat, radiation, chemicals

Question 13

Biofilms

Answer 13

Group of bacteria growing together. thick slimy layer on teeth.