Explain, using terminology of tonicity and membrane function, why disaster would result if a patient were given intravenous dH20 rather than 0.9% "physiological saline" solution
What will be an ideal response?
As the hypotonic distilled water (100% water) is dripped into the hapless patient's veins, the plasma of the blood will be diluted. Water will then move from the now dilute plasma into the blood cells which are hypertonic in relation to the plasma, where water is in lower concentration relative to the plasma. The blood cells will quickly swell and burst (hemolyze) as a result of osmosis.
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Tubular ____________________ and tubular ____________________ are selective processes that occur in the nephron
Fill in the blank(s) with correct word
Consuming a meal high in salt will
A) drastically increase the osmolarity of the blood. B) result in a temporary increase in blood volume. C) decrease thirst. D) cause hypotension. E) decrease renin secretion.
If a protein denature, then ________
A) its primary structure is altered B) it is linked with an enzyme and substrate C) it has catalyzed a chemical reaction D) it has unfolded and lost its three-dimensional structure
Describe the effect of exposure to UV rays on the skin
A. Improved skin tone B. Increased vitamin B production C. Increased melanin synthesis D. Decreased cancer risk