(Part 1) 1.9 Bacterial cell Envelope

Question 1

Found only in Gram Negative bacteria where it contains LPS

Answer 1

Outer membrane

Question 2

Lipopolysaccharide which acts as ________ that serve as one of the virulence factors of the bacteria?

Answer 2

Endotoxin

Question 3

This gives the bacterial cell shape and strength?

Answer 3

Cell wall/Murein layer

Question 4

Main constituent of cell wall?

Answer 4

Peptidoglycan

Question 5

Peptidoglycan is thicker in _____ than in ________

Answer 5

Gram positive, Gram Negative

Question 6

Peptidoglycan contains ______ which binds to Mg ions and protect bacteria from thermal injury

Answer 6

Teichoic acid

Question 7

A long fatty acid chain that is being describe as waxy substance layer on certain bacteria

Answer 7

Mycolic acid

Question 8

Example of bacteria with mycolic acid except for Mycobacterium tuberculosis?

Answer 8

Nocardia
Rhodococcus
Tsukamurella
Legionella micdadei

(NTRL)

Question 9

Found in Gram-negative which consists of gel-like substance that captures nutrients from the environment

Answer 9

Periplasmic space

Question 10

The deepest layer of the cell envelope which generates chemical energy such as ATP

Answer 10

Cytoplasmic (Inner) membrane