Samplex 1st LE

Question 1

This protein attaches to membrane proteins destined for endocytosis and eventual degradation in the lysosomes

Answer 1

Ubiquitin

Question 2

Proteins destined to be secreted or targeted out of the plasma membrane are processed in the…

Answer 2

Rough ER

Question 3

Type of diffusion where carrier undergoes conformational change:

Answer 3

Facilitated diffusion

Question 4

Co transport molecule of glucose

Answer 4

Sodium

Question 5

Used for cholesterol uptake

Answer 5

Receptor- mediated endocytosis

Question 6

A form of bull transport by which a hormone is secreted when the appropriate signal is received by the cell is:

Answer 6

Regulated exocytosis

Question 7

Phosphorylation of g protein coupled receptor results in

Answer 7

Inactivation of receptor

Question 8

Activation of this effector g protein results in the activation of creb protein

Answer 8

Adenylyl cyclase

Question 9

Activation of plc results in an increase of cytosolic calcium because of the opening of

Answer 9

Ip3 gated calcium channels in the erStore operated calcium channels

Question 10

Binding of a ligand to a tyrosine kinase receptor causes

Answer 10

Autophosphorylation of the receptor

Question 11

Cytokine receptors acitvate loosely associated tyrosine kinases known as

Answer 11

JAK

Question 12

Transcription factor activated by receptor serine-threonjbe kinase

Answer 12

SMAD

Question 13

Phosphorylated insulin receptor can activate this

Answer 13

MAPK

Question 14

Receptor for ligand epinephrine

Answer 14

G protein coupled receptor

Question 15

Receptor for estrogen

Answer 15

Intracellular

Question 16

Receptor for TGF-B

Answer 16

Serine threonine kinase receptor

Question 17

Neuron that sends impukses towards the cns

Answer 17

Afferent unipolar

Question 18

In rmp, ions move through which channel

Answer 18

Leak channels

Question 19

Local potential exhibited by a sensory neuron

Answer 19

Generator potential

Question 20

Equation on concentration of ions in rmp

Answer 20

GoldmanHodgkinKatz

Question 21

The spike potential determines this neuron property

Answer 21

Excitability

Question 22

The duration of action potential is the

Answer 22

Spike potential

Question 23

The critical firing level

Answer 23

Threshold potential

Question 24

Hyperpolarization occurs during what period

Answer 24

Relative refractory period

Question 25

Toxin that blocks voltage gated sodium channels; from puffer fish

Answer 25

Tetrodotoxin

Question 26

Toxin blocks nmj ach receptor; from snake venom

Answer 26

Bungarotoxin

Question 27

Blocks voltage gated potassium channels

Answer 27

Apamin from honeybee

Question 28

Viltage gated sodium channel is most dense at the

Answer 28

Nodes of ranvier

Question 29

Susceptibility trend to hypoxia

Answer 29

B>A>C

Question 30

Neuron fiber susceptibility to pressure

Answer 30

ABC

Question 31

Neuron fiber susceptibility to local anesthetics

Answer 31

CBA

Question 32

Increases the likelihood of an action potential on the PSN

Answer 32

Temporal and spatial summation

Question 33

Is the simultaneous firing of neurons

Answer 33

Spatial summation

Question 34

Increasing the frequency if stimulation of the neurons

Answer 34

Temporal summation