The cellular abnormality that causes cystic fibrosis is
A) abnormal potassium channels in heart muscle.
B) absence of the ability to feel pain.
C) abnormal chloride channels that trap salt inside cells lining the lung passageways.
D) extra receptors for a growth factor.
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Question 2) Movements permitted by the elbow joint between the humerus and the ulna are
A) movement in any plane. B) rotation and circumduction.
C) flexion and extension. D) adduction, flexion, and extension.
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Question 3) A man donates part of his liver to his daughter, who suffers from cystic fibrosis. This
procedure is a(n)
A) isograft. B) autograft. C) allograft. D) xenograft.
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Question 4) The tissue that covers all body surfaces is _____.
Fill in the blank(s) with correct word
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Question 5) In order for a severed peripheral nerve to regenerate and recover its original function,
nerve fibers must sprout and enter tubes formed by
A) basement membranes and connective tissues.
B) myelin.
C) nodes of Ranvier.
D) former axons.
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Question 6) A sternal puncture is often used to obtain a sample of
A) osteoblasts. B) fibroblasts.
C) red bone marrow. D) yellow bone marrow.
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Question 7) The most abundant substance in the human body is _____.
Fill in the blank(s) with correct word
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Question 8) A sarcomere is best described as
A) a unit within a muscle fiber. B) a group of fascicles.
C) a group of muscle fibers. D) a part of the sarcoplasmic reticulum.
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Question 9) The midpoint of the pH scale is pH __.
What will be an ideal response?
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Question 10) A metabolic pathway is a particular sequence of enzyme-controlled reactions.
Indicate whether the statement is true or false
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