Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Home Economics: 09.0 - Microbiology > Bacteria - Introduction and Conditions for growth > Flashcards

Bacteria - Introduction and Conditions for growth Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What are bacteria?

A

Microscopic unicellular microorganism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the two types of bacteria?

A

Pathogenic or non-pathogenic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Classify bacteria based on what they feed on?

A

Saprophytic

Parasitic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Define saprophytic bacteria

A

Bacteria which feed on non-living matter such as food and cause spoilage (non-pathogenic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Give an example of a saprophytic bacteria

A

Lactic acid bacteria which spoils milk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define parasitic bacteria.

A

Bacteria which feed on living matter such as animals or human (pathogenic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Give an example of a parasitic bacteria.

A

Staphylococcus aureus which causes staph infections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Classify bacteria based on their need for oxygen.

A

Aerobic
Anaerobic
Facultative

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Define aerobic bacteria.

A

Bacteria which need oxygen for growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Define anaerobic bacteria

A

Bacteria which do not require oxygen for growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Define facultative bacteria

A

Bacteria which can grow with or without bacteria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Give an example of an aerobic bacteria.

A

Mycobacterium tuberculosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Give an example of an anaerobic bacteria.

A

Clostridium botulinum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Give an example of a facultative bacteria

A

E.coli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Classify bacteria based on their temperature preference.

A

Psychrophilic
Mesophilic
Thermophilic
Hyperthermophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Give an example of psychrophilic bacteria.

A

Listeria (grows in the fridge)

17
Q

Give an example of mesophilic bacteria

A

E.coli (most prefer this temperature)

18
Q

Give an example of thermophilic bacteria

A

Thermus aquaticus

19
Q

Give an example of hyperthermophilic bacteria

A

Thermotoga maritima

20
Q

What temperature is required to destroy bacterial endospores?

A

121 degrees Celsius

21
Q

What aw level do bacteria require for growth?

A

An aw level of 0.9 or above

22
Q

What type of pH environment do bacteria require for growth?

A

Slightly acidic or neutral (6-7)

Extreme acidic or alkaline conditions inhibit bacterial growth

23
Q

How long does a bacteria require to grow?

A

Double every 20 minutes

Home Economics: 09.0 - Microbiology (23 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions