Which of the following pairs of ions is maintained in normal concentrations by calcium salts in bone?
Answer: Calcium and phosphate
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An autosomal dominant condition in a family will disappear if in any generation no one inherits the disease.
Answer the following statement true (T) or false (F)
When intestinal chyme is highly concentrated,
A. water moves by exocytosis from interstitial spaces into the stomach. B. water moves by osmosis into the lumen of the small intestine. C. water moves by endocytosis from intestinal lumen into interstitial spaces. D. water does not move. E. water moves by osmosis from the intestinal lumen into the blood.
Health care professionals who carefully follow prescribed precautions are at very low risk of contracting HIV from patients.?
Indicate whether the statement is true or false
What is "allosteric modulation"?
A. regulation of physiological functions by the sympathetic division of the autonomic nervous system B. modification of the functional state of a protein by temperature or pH C. the change in the shape and functional state of a protein that occurs when a ligand binds to a regulatory site D. the fact that all binding sites on a protein must be occupied to have a biological effect E. the ability of a single ligand-binding site to bind to molecularly similar ligands