Articular cartilage receives oxygen and nutrients from
A) chondrocytes.
B) blood vessels in underlying spongy bone.
C) a direct blood supply.
D) surrounding synovial fluid.
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Question 2) The digestive system filters wastes from the blood.
Indicate whether the statement is true or false
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Question 3) A strong acid reacting with a strong base produces a salt.
Indicate whether the statement is true or false
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Question 4) Molecules bind to receptor sites and are enclosed in vesicles in the process of
A) receptor-mediated endocytosis. B) pinocytosis.
C) exocytosis. D) phagocytosis.
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Question 5) The nervous system
A) all of the above.
B) detects changes in the internal or external environment.
C) controls the movement of muscles.
D) integrates information from several sources and uses it to determine an appropriate
response.
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Question 6) Eccrine sweat glands differ from sebaceous glands
A) all of the above.
B) in type of secretion.
C) in whether or not they are associated with hair follicles.
D) in their location.
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Question 7) Osteoblasts become osteocytes.
Indicate whether the statement is true or false
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Question 8) Which of the following is the most abundant form in which calcium is found in the
inorganic matrix of the bone?
A) Hydroxyapatite B) Calcium oxalate
C) Calcium carbonate D) Calcium pyrophosphate
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Question 9) A substance that releases hydrogen ions in water is a base.
Indicate whether the statement is true or false
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Question 10) In phagocytosis
A) a cell membrane engulfs solid particles.
B) a cell membrane engulfs droplets.
C) a particle enters a cell by moving down its concentration gradient.
D) a carrier molecule moves a substance across a cell membrane using ATP.
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