Neuron & Synapse Quiz

SBI 4UIMrs. Tuma

1. What part of the neuron receives messages

from other neurons?

(a) axon

(b) myelin

(c) dendrite

(d) Schwann cell

2. What structure is responsible for making myelin?

(a) axon

(b) Schwann cells

(c) dendrites

(d) synaptic knobs

3. At a chemical synapse, ______________ are found

only on the plasma membrane of the

_____________ cell.

(a) neurotransmitters, post-synaptic

(b) receptor proteins, post-synaptic

(c) neurotransmitters, pre-synaptic

(d) receptor proteins, pre-synaptic

4. In order for a neuron to maintain its resting potential, which of the following must occur? The neuron must…

(a) allow 3 Na+ in for every 2 K+ out

(b) allow 3 Na+ out for every 2 K+ in

(c) allow 2 Na+ out for every 3 K+ in

(d) allow Na to flood into the cell

5. Which of the following best describes the state of a neuron at rest?

(a) The inside of a neuron is more negatively

charged than the outside.

(b) The outside of a neuron is more negatively

charged than the inside.

(c) The inside and outside of a neuron have the

same electrical charge.

(d) K+ leak into the cell at rest.

6. What is the term for the minimum level of

stimulus required for a neuron to depolarize (fire)?

(a) all-or-none principle

(b) refractory period

(c) action potential

(d) threshold potential

7. Myelinated neurons are able to transmit

information along the axon more quickly because

depolarization occurs only at the Nodes of

Ranvier.

(a) True

(b) False

8. Which part of the neuron is responsible for

sending information along to other neurons?

(a) dendrites

(b) axon

(c) Schwann cells

(d) myelin sheath

9. Which neurotransmitter is responsible for

skeletal muscle contraction?

(a) serotonin

(b) GABA

(c) acetylcholine

(d) dopamine

10. Which neurotransmitter is responsible for

regulating mood?

(a) serotonin

(b) GABA

(c) acetylcholine

(d) norepinephrine

Check your Answers!

1. What part of the neuron receives messages

from other neurons?

(a) axon

(b) myelin

(c) dendrite

(d) Schwann cell

2. What structure is responsible for making myelin?

(a) axon

(b) Schwann cells

(c) dendrites

(d) synaptic knobs

3. At a chemical synapse, ______________ are found

only on the plasma membrane of the

_____________ cell.

(a) neurotransmitters, post-synaptic

(b) receptor proteins, post-synaptic

(c) neurotransmitters, pre-synaptic

(d) receptor proteins, pre-synaptic

4. In order for a neuron to maintain its resting potential, which of the following must occur? The neuron must…

(a) allow 3 Na+ in for every 2 K+ out

(b) allow 3 Na+ out for every 2 K+ in

(c) allow 2 Na+ out for every 3 K+ in

(d) allow Na to flood into the cell

5. Which of the following best describes the state of a neuron at rest?

(a) The inside of a neuron is more negatively

charged than the outside.

(b) The outside of a neuron is more negatively

charged than the inside.

(c) The inside and outside of a neuron have the

same electrical charge.

(d) K+ leak into the cell at rest.

6. What is the term for the minimum level of

stimulus required for a neuron to depolarize (fire)?

(a) all-or-none principle

(b) refractory period

(c) action potential

(d) threshold potential

7. Myelinated neurons are able to transmit

information along the axon more quickly because

depolarization occurs only at the Nodes of

Ranvier.

(a) True

(b) False

8. Which part of the neuron is responsible for

sending information along to other neurons?

(a) dendrite

(b) axon

(c) Schwann cells

(d) myelin sheath

9. Which neurotransmitter is responsible for

skeletal muscle contraction?

(a) serotonin

(b) GABA

(c) acetylcholine

(d) dopamine

10. Which neurotransmitter is responsible for

regulating mood?

(a) serotonin

(b) GABA

(c) acetylcholine

(d) norepinephrine