Brainscape's Knowledge GenomeTM

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


See full index

MCB > Lecture 5&6 > Flashcards

Lecture 5&6 Flashcards

1
Q

Sequence of the stages of cellular respiration

A

Glycolysis - Kreb’s Cycle- Electron Transport Chain

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

In cellular respiration, carbohydrate is oxidized completely and produces?

A

Carbon dioxide and water

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

One glucose molecule yields ________NADH in glycolysis, _______ in the transition stage, ______ and in Kreb’s Cycle

A

2;2;6

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

What glycolytic pathway is utilized by Escherichia coli?

A

Embden- Meyerhof-Parnas
Entner- Doudoroff pathway

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

Characteristics of an enzyme

A

-highly specific
-they are usually proteins
-they have an active site

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

Which of the ff is not a requirement for metabolism to occur

carbon source
oxygen source
energy source
electron source

A

oxygen source

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

fermentation type-fermentation product pairing

A

mixed acid fermentation-vitamins

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

Mechanism of bacterial DNA replication is?

A

Bidirectional and semiconservative

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

Give one characteristic of fermentation

A

Pyruvate is the common terminal electron acceptor (di ko sure)

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

Which of the following is not a product of of heterolactic fermentation

Lactic acid
ethanol
acetic acid
carbon dioxide
methane
all of the above

A

all of the above

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

Genes code for functional products such as proteins and RNAs. T/F

A

True

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

A nucleotide is composed of pentose sugar, a nitrogenous base attached to _________ of the sugar, and a phosphate group linked to the ________________of the sugar

A

C1’
C5’

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

Both DNA replication and transcription proceeds in the 5’ to 3’ direction. T/F

A

True

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

Repression prevents expression of genes and is mediated by a repressor protein that inhibits transcription. T/F

A

True

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

T/F. Mutation could be a caused by a mutagen or could occur spontaneously.

A

True

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

A virus genetic material is

A

either DNA or RNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Difference between prokaryotic and eukaryotic cells in genetic material

A

prokaryotic DNA is complexed with associated proteins while that of eukaryotes are with histones (mag provide ug structural support)

tho naa pay mas daghan jud

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Transformation is ?

A

transfer of “naked” DNA from one bacterium to another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Sequence of lytic viral replication

A
  1. Receptors attaches to host
  2. Virus injects genetic material
  3. Viral genetic material takes command of host cell
  4. New viral components are made
  5. New viruses assemble
  6. Cell lysis
20
Q

RNA processing step

A

1.Capping at the 5’ end
2.Addition of a poly(A) tail at the 3’ end
3. Splicing to remove introns

21
Q

T/F. Glycolysis generates more ATP than is generated in oxidative phosphorylation

A

False

22
Q

T/F. In glycolysis, ATP is generated by substrate- level phosphorylation and oxidative phosphorylation

A

False

23
Q

T/F. Catabolism of amino acids yields proteins

A

False

24
Q

T/F. Carbon dioxide serves as an electron acceptor for methanogen anaerobic respiration

A

True

25
Q

T/F. Emden- Meyerhof-Parnas glycolytic pathway produces more energy than Entner-Doudoroff pathway

A

True

26
Q

T/F. Methanococcus reduces carbon dioxide to methane using electrons from hydrogen gas

A

True

27
Q

T/F. All autotrophic microorganisms are photosynthetic

A

False

28
Q

T/F. Constitutive genes are regulated and are only expressed when needed

A

False

29
Q

T/F. Antibiotic resistance of bacteria is encoded in R factors or R plasmids

A

True

30
Q

T/F. RNA viruses mutate at a higher rate than DNA viruses

A

True

31
Q

T/F. Some antiviral drugs are chemical mutagens

A

True

32
Q

T/F. COVID-19 virus is retrovirus thus it has RNA as its genetic material and the enzyme reverse transcriptase.

A

False

33
Q

MODIFIED TRUE OR FALSE
Oxidative phosphorylation is ATP production by transferring an organic molecule’s high energy phosphate group to ADP

A

False; organic- inorganic

34
Q

MODIFIED TRUE OR FALSE
In aerobic cellular respiration, oxygen is the terminal electron acceptor.

A

True

35
Q

MODIFIED TRUE OR FALSE
Anabolic reactions are exergonic reactions as it requires energy

A

False; exergonic- endergonic

36
Q

MODIFIED TRUE OR FALSE
Fatty acid catabolism is through beta oxidation

A

True

37
Q

MODIFIED TRUE OR FALSE
Pseudomonas aeruginosa use the Emden-Meyerhof-Parnas glycolytic pathwat.

A

False; Emden-Meyerhof-Parnas glycolytic pathwat -

Entner–Doudoroff pathway

38
Q

MODIFIED TRUE OR FALSE
Cyanobacteria are anoxygenic photoautotrophs

A

False- anoxygenic-oxygenic

39
Q

An organism that uses carbon dioxide as its source and proteins as its energy source is categorized as?

A

Chemoautotrophs

40
Q

MODIFIED TRUE OR FALSE
Transfer RNA carries genetic the genetic information from DNA to ribosomes

A

False; Transfer- Messenger

41
Q

MODIFIED TRUE OR FALSE
Lac operon is an example of an inducible operon

A

True

42
Q

T/F. A phrophage is a viral DNA inserted into a host chromosome

A

True

43
Q

Is a sequence of nucleotides at the promoter and found at the -10 position of the bacterial transcription site

A

Pribnow box

44
Q

T/F. X-rays and gamma rays are ionizing radiation that cause electrons to pop out of their usual shells.

A

True

45
Q

MODIFIED TRUE OR FALSE
An operon includes regulatory genes, the promoter and operator sites, and the structural genes they control

A

False; regulatory genes- regulatory sites

MCB (1 decks)

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