Study Biology

Course

Introductory Biology

Study Pack

Set 41 Neural Signaling

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Question 1

(Multiple Choice)

Free
Figure 41-1 ​
Figure 41-1 ​ ​ An axon smaller than approximately what diameter is generally unmyelinated? A) 20 m m B) 2 m m C) 200 nm D) 20 nm E) 2 nm
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An axon smaller than approximately what diameter is generally unmyelinated?

A) 20 m m
B) 2 m m
C) 200 nm
D) 20 nm
E) 2 nm

Answer

Question 2

(Multiple Choice)

Free
Figure 41-1 ​
Figure 41-1 ​ ​ Refer to the accompanying figure. What is the function of the structure labeled as 4? A) To insulate the axon B) To release neurotransmitters C) To synthesize cell body organelles D) To receive inputs from other neurons E) To send retrograde signals to the cell body
​
Refer to the accompanying figure. What is the function of the structure labeled as 4?

A) To insulate the axon
B) To release neurotransmitters
C) To synthesize cell body organelles
D) To receive inputs from other neurons
E) To send retrograde signals to the cell body

Answer

Question 3

(Multiple Choice)

Free
Which of the following is a correct statement regarding the patch clamp technique?

A) The membrane attached to the pipet tip generally contains multiple ion channels.
B) Ion flow cannot be measured.
C) The current flow is constant.
D) The current flow corresponds to opening and closing of the ion channel.
E) The permeability of the channel does not affect the magnitude of the current.

Answer