Course

Introductory Biology

Study Pack

Set 45 Control Of Animal Processes Neural Control

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Question 1

(Multiple Choice)

Free
What organic macromolecules allow myelinated sheaths to act as electrical insulators?

A) proteins
B) lipids
C) carbohydrates
D) nucleic acids

Answer

Question 2

(Multiple Choice)

Free
What happens to a neuron's membrane when its membrane potential becomes less negative?

A) It becomes depolarized.
B) It becomes hyperpolarized.
C) It becomes hypopolarized.
D) It becomes repolarized.

Answer

Question 3

(Multiple Choice)

Free
Which of the following can be found in higher concentrations on the outside of a neuron's plasma membrane relative to the inside?

A) Ca2+
B) Na+
C) K+
D) anions

Answer