final Flashcards

(41 cards)

1
Q

What part of the cell cycle is division of genetic information

A

Mitosis

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

what phase does replication of organelles occur?

A

G1 phase

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

if a cell is in G0 phase, does it reenter the cell cycle whenever it wants too?

A

false

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

During what phase does kinetochore microtubules attach to the kinetochore?

A

Prometaphase

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

All cells are able to divide through their entire life span? t/f?

A

false

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

Pick two that work together to regulate cetain phases of the cell cycle?
Quiescence, Cyclins, Cyclin dependent kinases, CIP

A

Cyclins and Cycling dependent kinases

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

The restriction point does which of the following jobs?

A

Prevents progression to DNA synthesis

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

During what phase does the nucleolus disappear?

A

Prophase

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

Human papollimavirus deactivates which two tumor suppressor genes?

A

P53 and BRCA1

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

if a cell becomes damaged, and if DNA is altered or damaged, what stage is it most likely stopped at to fix it?

A

G1

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

Cdc25c may be inhibited by what tumor suppressor protein? ( their are two)

A

RB AND TP53

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

Which cyclin will kinases CDK1 to transition from G2 to M?

A

Cyclin B

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

T/F A senescent cells is permanently stuck in G0.

A

T

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

T/F Cells are killed off but are replaced at the same time to maintain homeostasis.

A

T

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

What theory allows for limitless replication?

A

Stem Cell Theory

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

If a cancer follows ___, it is more likely to be resistant to drugs.

A

Stem Cell Theory

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

What is the correct order of the process of cancer?

A

Initiation- promotion- progression- metastasis

18
Q

What are some hallmark of cancer?

A

Self-sufficient growth
Angiogenesis
Ignores anti-growth signals

19
Q

Li-Fraumeni syndrome is a mutation of what gene?

20
Q

Which gene functions in cell adhesion?

21
Q

Which of the following statements is not true regarding apoptosis?

1) No damage to cells around
2) Relatively short process
3) Due to injury
4) No inflammation

A

No damage to cells around,
Relatively short process
No inflammation

22
Q

T/F most of the time apoptosis is bad.

23
Q

What signals the apoptosome complex in the cytoplasm?

24
Q

What is the function of caspase 3?

A

Effector caspase

25
cancer can be described as
Overexpression of apoptotic protein
26
Which hallmark of aging is described as having abnormal protein accumulation?
Loss of protein homeostasis
27
What hallmark of aging alters transcription?
Epigenetic alterations
28
T/F Eukaryotic cells can divide indefinitely.
False
29
T/F senescent cells do not replicate because they are not metabolically active anymore
False
30
T/F action potentials A spread unidirectionally
True
31
During what stage of an action potential will there be an efflux of K+
Repolarization
32
Which channels initiate action potential and are typically fast?
Sodium Channels
33
T/F If at some point during a nerve action potential cannot generate enough voltage, depolarization spread will stop.
True
34
Activation of sodium and potassium pump is dependent on ____
Sodium
35
what is an example of an anion?
Calcium
36
Histamine is an example of what class of neurotransmitter?
Class II
37
what are some examples of pairing? (3)
Dopamine- substania nigra Acetylcholine- motor cortex Glutamate- cerberal cortex
38
T/F all neurotransmitters are stored in vesicles
False
39
What will strychnine do to synaptic transmission?
Reduce threshold
40
T/F oncogenes control cell growth and differentiation
false
41
which part of the cell cycle is when two daughter cells are given off?
Interphase