CM1 - Exam 1

Question 1

Name the 2 types of genes found in bacteria.

Answer 1

• chromosomal genes: encode proteins vital for basic bacterial survival and replication
• plasmid genes: can encode for antibiotic resistance, virulence factors, or specialized metabolic functions

Question 2

Name the differences between the cell walls of GP and GN bacteria.

Answer 2

GP: thick peptidoglycan layer; has teichoic acid and lipoteichoic acid (LTA); purple
GN: thin peptidoglycan layer; has Lipid A; pink

Question 3

Name the parts within the lipopolysaccharide layer.

Answer 3

O antigen, Lipid A, core LPS

Question 4

Describe 2 other bacterial cell wall types (not GN or GP) and give microbial examples of each.