Lecture 7

Question 1

Bacteria and Archaea

Answer 1

Asexual - Binary fission

must replicate and segregate the genome

Question 2

Septum

Answer 2

A partition that forms during cell division to divide two daughter cells

Question 3

Exponential growth

Answer 3

When a growing bacterial population is doubling at regular intervals

Question 4

Generation time (Doubling time)

Answer 4

The time it takes for a microbial population to double in number

Question 5

Bacterial Cell Cycle

Answer 5

DNA replication and partition

Cytokinesis – septum formation

Question 6

Septation

Answer 6

formation of cross walls (septum; septa) between daughter cells

Question 7

MinCDE system

Answer 7

Limit the Z ring to the center of the cell

Question 8

FtsA and ZipA

Answer 8

link Z ring to plasma membrane

Question 9

Autolysins

Answer 9

Enzymes that degrade peptidoglycan (in a controlled manner)

Question 10

Transpeptidases

Answer 10

Peptidoglycan crosslinking enzymes

Question 11

Cocci

Answer 11

New peptidoglycan only forms at the central septum

Question 12

Rods

Answer 12

Peptidoglycan synthesis occurs throughout the cell prior to septation

Question 13

Crescentin

Answer 13

intermediate filament homologue`