Chapter 2
Biology and Psychology

MULTIPLE CHOICE

1. Which of the following would not be possible without the functioning of the nervous system?
a.
ideals, thoughts, and plans
c.
behaviors, emotions, and cognitions
b.
imagery and cognitions
d.
all of these

ANS: D DIF: 2 REF: 2-26 OBJ: 1
MSC: TYPE: Conceptual

2. A(n) _________ is a nerve cell.
a.
axon
c.
dendrite
b.
neuron
d.
glial cell

ANS: B DIF: 1 REF: 2-26 OBJ: 1
MSC: TYPE: Factual NOT: BTC

3. ________ remove dead neurons and waste products from the nervous system, nourish and insulate neurons, and direct their growth.
a.
Schwann cells
c.
Glial cells
b.
Neurons
d.
Myelin sheaths

ANS: C DIF: 2 REF: 2-26 OBJ: 1
MSC: TYPE: Factual …show more content…

a.
James
c.
Wundt
b.
Galvani
d.
Edison

ANS: B DIF: 1 REF: 2-27&28 OBJ: 1
MSC: TYPE: Factual

22. The electrochemical discharge of a nerve cell or neuron is called a(n)
a.
neural impulse.
c.
neurotransmitter.
b.
synapse.
d.
afferent impulse.

ANS: A DIF: 1 REF: 2-27&28 OBJ: 1
MSC: TYPE: Conceptual

23. The resting potential of a neuron is about
a.
-40 millivolts.
c.
-70 millivolts.
b.
+40 millivolts.
d.
+70 millivolts.

ANS: C DIF: 1 REF: 2-28 OBJ: 1
MSC: TYPE: Factual

24. When a section of a neuron is stimulated by neighboring neurons, the cell membrane becomes __________ to sodium ions.
a.
positive
c.
polarized
b.
permeable
d.
impermeable

ANS: B DIF: 2 REF: 2-28 OBJ: 1
MSC: TYPE: Factual

25. In a resting state, fluid on the inside of the neuron is __________ charged relative to the outside.
a.
positively
c.
equally
b.
negatively
d.
electrically

ANS: B DIF: 2 REF: 2-28 OBJ: 1
MSC: TYPE: Factual NOT: BTC

26. When a neuron cell membrane has become permeable to sodium ions, what has transpired?
a.
A section of the neuron has been stimulated by a neighboring neuron.
b.
An action potential of about –70 millivolts has been initiated.
c.
The inside cell at the disturbed area has an action potential of about -40 millivolts.
d.
The previous section of the cell has become permeable to potassium chloride ions.

ANS: A DIF: 3 REF: 2-28 OBJ: 1
MSC: TYPE: Applied

27.