Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

BIOL 201 > Lec 34 > Flashcards

Lec 34 Flashcards

1
Q

Adenaline

A

Epinephrine

Signal molecule

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

Adrenaline origin

A

Adrenal gland

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

Adrenaline actions

A

Increases blood pressure, heart rate, and metabolism

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

Endocrine signaling overview

A

Endocrine cell releases hormone that enters the bloodstream and lands on a receptor of the target cell

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

Cell surface receptors

A

Receptor on the surface receives signal molecule and causes an effect on the target cell

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

G coupled protein receptor includes

A

Receptor

G protein

Enzyme

all inactive before a signal

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

When a signal arrives

A

Activates receptor which activates the enzyme which leads to the enzyme synthesizing a molecule

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

Kinase

A

Kinases put phosphates onto target proteins

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

Purpose of phosphorylation

A

Activating a target protein

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

How kinases work

A

Are either on at a high level or have zero activity

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

How a target cell becomes inactive

A

Phosphatase (opposite of kinase)

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

Phosphatase is always

A

Active

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

Kinase is

A

Not always activated

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

Adrenaline signaling purpose

A

Fight or flight

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

Adrenaline activation

A

It is released by the adrenal glands on top of the kidneys

Released by regulated exocytosis

Reaches adrenaline receptor which activates G protein which activates Adenylyl Cyclase enzyme

Which then makes cyclic AMP from ATP

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

cAMP prupose

A

Activates Protein Kinase A

17
Q

PKA

A

Phosphorylates certain target proteins

18
Q

Liver cells PKA response

A

Break down glycogen

19
Q

Skeletal muscle cells PKA response

A

Breaks down glycogen to make ATP

20
Q

Heart pacemaker cell PKA

A

Increase action potentials to increase heart rate

21
Q

Deactivation of adrenaline

A

Removal of adrenaline by diffusion, degradation, and uptake

Turns off Adrenaline Receptor, G protein, and Adenylyl Cyclase enzyme

cAMP however still remains

22
Q

cAMP removal

A

Phosphodiesterase (PDEs) break it down into AMP

23
Q

Medical significance of adrenaline signal system

24
Q

EpiPens

A

Injections of adrenaline to treat severe allergic reactions

25
Q

Bee sting allergic reaction

A

Lower blood pressure (can faint)

Diaphragm contract (harder to breathe)

26
Q

EpiPen response to bee sting

A

Raising blood pressure to make it easier to take in oxygen

Relaxing diaphragm to make breathing easier

BIOL 201 (44 decks)

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