BIO 181 Assignments Quiz 4 (Modules 13-14)

Question 1

1 / 1 pts

When the Sympathetic Nervous System is triggered, glycogen is broken down to glucose to provide more energy.

True

False

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Question 2

1 / 1 pts

The Parasympathetic Nervous System is triggered to act by exposure to epinephrine.

True

False

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Question 3

1 / 1 pts

The medulla of the adrenal gland produces epinephrine (i.e., adrenaline).

True

False

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Question 4

1 / 1 pts

Vitamin D is really a hormone.

True

False

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Question 5

1 / 1 pts

Vitamin D is synthesized from cholesterol

True

False

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Question 6

1 / 1 pts

Vitamin D causes the parathyroid to inhibit new PTH synthesis.

True

False

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Question 7

1 / 1 pts

Insulin is a ligand.

True

False

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Question 8

1 / 1 pts

Insulin is produced by alpha cells.

True

False

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Question 9

1 / 1 pts

The central nervous system (CNS) contains:

Nerves extending from the spinal column to the fingers

Motor neurons extending from the spinal column to the fingers

Only the brain

Two of the above

None of the above answers is correct.

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Question 10

1 / 1 pts

The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal.

True

False

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Question 11

1 / 1 pts

Fast neurons as described in lecture require cytoplasmic signal transduction to open an ion channel.

True

False

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Question 12

1 / 1 pts

Fast neurons as described in lecture are fast because they are surrounded by a type of glial cell that results in a myelin coating.

True

False

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Question 13

1 / 1 pts

The axon from a pre-synaptic cell contacts the axon of another neuron.

True

False

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Question 14

1 / 1 pts

The terminal web:

is in the dendrites

is the site where exocytosis occurs

is at the axon hillock

is a site of exocytosis

This list contains no correct answers

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Question 15

1 / 1 pts

Excitatory synapses make the post-synaptic cell less likely to fire.

True

False

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Question 16

1 / 1 pts

Excitatory synapses cause depolarization of the post-synaptic cell.

True

False

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Question 17

1 / 1 pts

The axon hillock in the pre-synaptic neuron fires based on temporal and spatial summation of inputs.

True

False

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Question 18

1 / 1 pts

The resting potential of neurons is:

0 mV

Same as the action potential.

Always a positive value.

Two of the above.

The answer is not on this list.

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Question 19

1 / 1 pts

The action potential is:

A result of hyper-polarization.

A result of the movement of calcium ions.

A result of the action of the cell body.

A result of microtubules.

A result of the movement of ions.

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Question 20

1 / 1 pts

The membrane potential (resting potential) is largely set by the Na-K- ATPase pump.

True

False

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Question 21

1 / 1 pts

Potassium ions are at high concentrations inside of cells including in neurons.

True

False

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Question 22

1 / 1 pts

In the motor end plate, the event that is the immediate trigger for exocytosis is:

Potassium ions.

Chloride ions.

Calcium ions.

The action potential.

The cell body.

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Question 23

1 / 1 pts

Acetylcholine esterase breaks acetylcholine into muscarinic acid

True

False

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Question 24

1 / 1 pts

Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to start the action potential in the postsynaptic cell.

True

False

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Question 25

1 / 1 pts

The autonomic nervous system contains the sympathetic and the parasympathetic nervous system.

True

False

Good work

Quiz Score: 25 out of 25

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