Brainscape's Knowledge GenomeTM

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


See full index

Microbiology Exam 2 > Deck 1 > Flashcards

Deck 1 Flashcards

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

In fermentation electrons are transferred to what type of electron donor?

A

Endogenous

pyruvate

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

What two systems have no involvement in fermentation?

A

ETC

PMF

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

In fermentation ATP is only formed by what?

A

Substrate level phosphorylation

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

What is the most direct purpose of fermentation?

A

To oxidize NADH

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

As electrons pass through the ETC to the final electron acceptor, what is formed to produce ATP and what is this process called?

A

PMF (proton motive force)

Oxidative phosphorylation

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

What is a brief describe oxidative phosphorylation?

A

The use of PMF to synthesize 4 ATP equivalents

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

How many ATP equivalents are produced through oxidative phosphorylation?

A

4
2ATP
2GTP

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

(T/F) Oxidative phosphorylation requires the ETC

A

True

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

How many major pathways are there for glycolysis?

A

3
EMP
PPP
EDP

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

(T/F) Glycolysis requires oxygen

A

False, can operate with or without it

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

The oxidation of what two compounds produces the most ATP in oxidative phosphorylation?

A

NADH

FADH2

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

What compound needs to be regenerated for glycolysis to continue?

A

NAD+

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

(T/F) The precursors for peptidoglycan synthesis stays the same, no matter what the pathway

A

False, different depending on pathway

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

Peptidoglycan synthesis involves what three components?

A

Cytoplasm
Membrane
Periplasmic space

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

What two carriers are used in peptidoglycan synthesis and during what reactions?

A

UDP - cytoplasmic

Bactoprenol - transports NAG-NAM across membrane

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

(T/F) In peptidoglycan synthesis the pentapeptide is synthesized by ribosomes and tRNA

A

False

17
Q

What to chemolithotrophs use as a energy source?

A

Inorganic compounds (like Fe)

18
Q

What is a brief description of the sigma factor located in the bacteria transcription?

A

It is a non-catalytic activity, but helps choose the correct genes to be transcribed

19
Q

What inhibits bacterial transcription?

A

No source of lactose

20
Q

Bacterial transcription only goes from what prime to what prime?

A

5’ to 3’

21
Q

Only what types of enzymes can begin bacterial transcription?

A

Holoenzymes (does not do the actual transcription)

22
Q

(T/F) In bacterial transcription the promoter is the site of transcription and is actually transcribed itself

A

False, it is the site of transcription, but is not transcribed

Microbiology Exam 2 (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions