Nature of Infection

Question 1

Is bacteria prokaryote or eukaryote?

Answer 1

prokaryote

Question 2

Give 3 differences between eukaryotes and prokaryotes

Answer 2

eukaryotes much bigger, eukaryotes complex and eukaryotes often multi cellular

Question 3

What does a nucleoid contain?

Answer 3

proteins and DNA

Question 4

Give 2 features of a nucleoid

Answer 4

no nuclear membrane, chromosome single circular molecule

Question 5

What is the cell wall made of?

Answer 5

peptidoglycan

Question 6

Gram +ve bacteria has what sort of cell wall?

Answer 6

thick multi-layer PG

Question 7

Gram -ve bacteria has what sort of cell wall?

Answer 7

thinner PG layer

Question 8

What is a lipopolysaccharide?

Answer 8

antigen and bacteria toxin. Plays a structural role

Question 9

Is fimbriae gram +ve or -ve?

Answer 9

gram +ve

Question 10

Flagella and Fimbriae determine what?

Answer 10

adherence and sex

Question 11

Prokaryotic growth relies on what 2 things mainly?

Answer 11

temperature and food

Question 12

What other 3 things affect prokaryotic growth?

Answer 12

hydrogen ion conc, osmotic protection and oxygen

Question 13

What are the 4 stages of bacterial growth curve?

Answer 13

lag, exponential, stationary, decline