Microbiology

Question 1

Describe the cell wall of gram positive bacteria

Answer 1

Have a thick layer of peptidoglycan in their cell wall

Question 2

Describe the cell wall of gram negative bacteria

Answer 2

Have a thin layer of peptidoglycan in their cel wall covered by an outer layer of lipopylsacchardies

Question 3

What conditions are necessary for growing bacteria in a lab

Answer 3

Suitable temperature
Suitable pH
Oxygen
Nutrients

Question 4

What bacterial is rod shaped

Answer 4

Bacillus

Question 5

What bacteria is spherical shaped

Answer 5

Coccus

Question 6

What bacteria is helical shaped

Answer 6

Sprillium

Question 7

How is gram negative bacteria harder to kill

Answer 7

The outer layer of lipolysaccharide provides some protection against antibiotics and the enzyme lysozyme and therefore making gram negative bacteria harder to kill

Question 8

What technique is used to classify different types of bacteria

Answer 8

The gram stain technique