Wolff’s law of bone states that bone density is directly related to the dietary ingestion of
calcium.
True
False
Question 2
Which statement is true regarding osteoporosis?
It is loss of density of the matrix in spongy bone only
It is most commonly diagnosed in pre-menopausal women
Vitamin D plays an important role in its prevention
Vertebrae and femoral neck fractures are a common complication in males only
Question 3
Osmosis is the movement of random molecules from a low to high concentration across a
selectively permeable membrane.
True
False
Question 4
Acetylcholine molecules must bind to troponin in order for the muscle contraction process to
occur.
True
False
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