Bacterial Growth and Taxonomy

Question 1

Generation Time

Answer 1

The time required for bacterium to divide

Question 2

Lag Phase

Answer 2

Bacteria are preparing cell machinery for growth

Question 3

Log Phase

Answer 3

Bacteria are growing at an exponential rate

Question 4

Stationary Phase

Answer 4

Cells stop growing and shut down their growth machinery while turning on stress responses to help retain viability

Question 5

Death Phase

Answer 5

Cells begin to die at an exponential rate

Question 6

Acidophiles

Answer 6

Grow in acidic environments

Question 7

Alkaliphiles

Answer 7

Grow in basic environments

Question 8

Halophiles

Answer 8

Grow in high salt concentrations

Question 9

Pure Culture

Answer 9

Contains only one species or strain

Question 10

Colony

Answer 10

A population of cells arising from a single cell or a group of attached cells

Question 11

Quorum Sensing

Answer 11

Chemical communication

Question 12

Prokaryotic Strain

Answer 12

Subgroup of a species that possesses a trait that distinguishes it from other members of the species

Question 13

Serotyping

Answer 13

Used to distinguish a particular strain using antibodies to detect unique antigens on its surface

Question 14

Superoxide Dismutase

Answer 14

Turns free radicals into hydrogen peroxide

Question 15

Catalase

Answer 15

Turns hydrogen peroxide into Oxygen and water

Question 16

Peroxidase

Answer 16

Turns hydrogen peroxide into water

Question 17

Biofilm

Answer 17

It is a microbial community that grows in a matrix of a complex polymer that contains water