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2.2 Mini Test Review

Total questions: 38

Worksheet time: 28mins

Name
Class
Date
1.
Which is the following is represented by the letter A?
a)
Dendrite
b)
Cell Body 
c)
Nucleus
d)
Myelin Sheath
2.

Which is the following is represented by the letter B?

a)

cell body

b)

nucleus

c)

dendrite

d)

axon

3.

Which of the following is represented by letter C?

a)

Cell body

b)

nucleus

c)

axon

d)

dendrite

4.

Which is represented by the letter E?

a)

Axon

b)

Myelin sheath

c)

schwan cells

d)

terminal branches

5.

Which is represented by the letter G?

a)

axon

b)

myelin sheath

c)

schwan cell

d)

terminal branches

6.

Which is represented by the letter H?

a)

axon

b)

myelin sheath

c)

schwan cell

d)

axon terminals

7.

Which is the following is represented by the letter F?

a)

cell body

b)

Node of Ranvier

c)

Schwann cells

d)

axon

8.

The gaps between myelin sheaths:

a)

neurotransmitter

b)

synapse

c)

node of ranvier

d)

schwann cells

9.
Which ions are involved in an action potential?
a)
Na; Cl
b)
Na; K
c)
K; Cl
d)
Na; Ca
10.
What is the normal resting potential of a neuron cell membrane?
a)
+40mV
b)
-30mV
c)
+55mV
d)
-70mV
11.
At which point on the diagram does depolarisation of the axon occur? 
a)
A
b)
B
c)
C
d)
D
12.
The sodium potassium pump restores the resting potential. By which process does this work? 
a)
Osmosis
b)
Diffusion
c)
Facilitated diffusion
d)
Active transport
13.
When a neuron is not engaged in an impulse.
a)
Resting potential
b)
Action potential
c)
Neural potential
d)
Synaptic potential
14.
A membrane potential becoming less negative is called
a)
hyperpolarization
b)
depolarization
c)
repolarization
d)
polarization
15.
In resting potential, neurons have more _________ on the outside of the cell membrane.
a)
K+
b)
NaCl
c)
Na+
d)
Cl-
16.

What number(s) on the graph represents the THRESHOLD level of stimulus?

a)

1 and 5

b)

2

c)

3

d)

6

17.
When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.
a)
Sodium, depolarization, potassium
b)
Potassium, depoloarization, sodium
c)
sodium, repolarization, potassium
d)
postassium, repolarization, sodium
18.
Why is -55 mV a significant number?
a)
This is the largest charge achieved during an action potential
b)
This is the threshold required to complete an action potential
c)
This is the resting charge of a neuron
d)
This is the charge when all the sodium is inside the cell
19.
At what stage are both ions present in large concentrations INSIDE the neuron?
a)

Depolarizarion

b)

Repolarization

c)

Refractory Phase

d)

Resting Potential

20.

What number on the graph represents the refractory phase?

a)

1

b)

2

c)

3

d)

4

21.

When is the potassium channel open?

a)

during rest only

b)

during repolarization only

c)

during depolarization only

d)

all the time

22.

An action potential is __________ in nature, with the inside of the neuron being more ________.

a)

chemical, negative

b)

electrical, negative

c)

chemical, positive

d)

electrical, positive

23.

As the neuron fires, there's a reversal in _____ as the axon undergoes ________.

a)

direction, depolarization

b)

charge, depolarization

c)

direction, repolarization

d)

charge, repolarization

24.
The sodium-potassium pump....
a)

Sends (Na+) into the cell

b)

Sends (K+) into the cell

c)

Exchanges (K+) & (Na+) during depolarization

d)

Exchanges (K+) & (Na+) all the time

25.
This insulating material forms a layer, around the axon of a neuron.  It enables electrical signals to travel down the axon at higher speeds.
a)
neuron
b)
myelin sheath
c)
dendrite
d)
neurotransmitter
26.

The part of the neuron that receives messages from adjacent neurons

a)

axon

b)

axon terminal

c)

dendrite

d)

neuron

27.

The long, fiber like part of a neuron which the cell sends information to receiving neurons

a)

axon

b)

dendrite

c)

myelin

d)

Node of Ranvier

28.

Which channel/pump is responsible for maintaining and restoring resting potential in neurons?

a)

Na channels

b)

K Channels

c)

Na/K Pump

d)

Calcium Gated Channel

29.

Match the following

a)

Carries the message to tis next destination

1.

Axon

b)

Contains the nucleus of a neuron

2.

Soma

c)

Receives an incoming message

3.

Dendirte

d)

Insulates the electrical signal

4.

Myelin Sheath

e)

Branching ends of the axon where neurotransmitters are stored

5.

Axon Terminals

30.

Match the following

a)

Electrical signal used by neurons to transmit a message

1.

Action Potential

b)

Group of chemical signaling molecules used to cause a synapse between neurons

2.

Neurotransmitters

c)

Space between the axon terminal of one neuron and the dendrite of another neuron

3.

Synapse

d)

Adaptive response to a stimulus

4.

Reflex

e)

Atom that has gained or lost electrons

5.

Ions

31.

What's in the picture?

a)

synaptic vesicles

b)

neurotransmitters

c)

presynaptic neuron

d)

postsynaptic neuron

e)

synaptic cleft

32.

What's in the picture?

a)

synaptic vesicles

b)

neurotransmitters

c)

presynaptic neuron

d)

postsynaptic neuron

e)

synaptic cleft

33.

What's in the picture?

a)

synaptic vesicles

b)

neurotransmitters

c)

presynaptic neuron

d)

postsynaptic neuron

e)

synaptic cleft

34.

What's in the picture?

a)

synaptic vesicles

b)

neurotransmitters

c)

presynaptic neuron

d)

postsynaptic neuron

e)

synaptic cleft

35.

Which pattern shows how signals are transmitted from the presynaptic neuron to the post synaptic neuron

a)

electrical --> electrical

b)

electrical --> chemical

c)

chemical --> electrical --> chemical

d)

electrical --> chemical --> electrical

36.

Which side of the synapse contains neurotransmitters?

a)

presynaptic

b)

postsynaptic

c)

both

37.

Place the following steps of a synapse in the order that they occur

a)

Action potential reaches the axon terminals of sending cell

b)

Calcium flows into the axon of the sending cell through Ca+2 channels

c)

Vesicles fuse with the membrane and neurotransmitters enter synaptic cleft

d)

Neurotransmitters attach to receptors on receiving cell

e)

Receptors release neurotransmitters into synapse

1)
2)
3)
4)
5)
38.

Which of the following correctly outlines a reflex arc?

a)

Motor neuron - interneuron - sensory neuron

b)

Sensory neuron - interneuron - motor neuron

c)

Sensory neuron - interneuron - brain - motor neuron

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