Practical 4 study module 1

Question 1

Bio Safety Level BSL

Answer 1

precautions set in place to preform correct technique while working in the lab

Question 2

Autoclave

Answer 2

Way to achieve sterilization by using high pressure and heat

Question 3

ubiquity

Answer 3

state of being everywhere all the time all at once

Question 4

culture

Answer 4

something that has bacteria growth on it

Question 5

CFU

Answer 5

Colony forming units- a unit which estimates the number of microbial cells in a sample

Question 6

opaque growth

Answer 6

not able to see through but not translucent

Question 7

filiform growth on slant

Answer 7

dense and opaque with a smooth edge

Question 8

turbidity in broth

Answer 8

optical density of bacterial growth

Question 9

flocculence in broth

Answer 9

stick together in clumps

Question 10

fluid thyglocolate broth

Answer 10

type of broth that can support growth of all different types of bacteria

Question 11

aerotolerance

Answer 11

capacity of an organism to tolerate the presence of oxygen in the air

Question 12

facultative anaerobe

Answer 12

organism able to grow with or without free oxygen

Question 13

microanerophilic

Answer 13

a microorganism that requires an environment with lower levels of dioxygen than that are present in the atmosphere

Question 14

resazurin

Answer 14

indicator of cell viability

Question 15

thermophile

Answer 15

organism that grows best at higher temperatures 41 and 122 degrees celsius

Question 16

psychrophile

Answer 16

organism that grows best in temperatures close to freezing -20 to 10 degrees celsius

Question 17

psychotroph

Answer 17

cold tolerant bacteria 15-20 degrees celsius

Question 18

mesophile

Answer 18

an organism that grows best in moderate temperature 37 degrees celsius

Question 19

hyperthermophile

Answer 19

organisms that grow best in extreme temperatures