Control of vitamin D activation is accomplished by
A) PTH control of the liver 25 hydroxylase
B) PTH control of the liver 1 hydroxylase
C) PTH control of the kidney 25 hydroxylase
D) PTH control of the kidney 1 hydroxylase
E) Feedback inhibition of the liver 1 hydroxylase by vitamin D
Correct Answer:
Verified
Q16: Calcitonin is secreted as a
A) Single chain
Q17: The signal for increased PTH secretion is
A)
Q18: The largest sink for phosphorus leaving the
Q19: Calcium in plasma is bound to plasma
Q20: Hypocalcemia can cause
A) Sluggish central nervous system
Q21: Vitamin D is a
A) Single chain peptide
Q23: Vitamin D is activated by
A) Hydroxylation at
Q24: The major circulating form of vitam in
Q25: The major action of calcitonin is
A) Increase
Q26: The precursor for vitamin D in the
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