The renal process whereby substances are selectively transferred from the peritubular blood into the renal tubule is
a. filtration.
b. secretion.
c. reabsorption.
d. excretion.
e. none of these answers.
B
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In response to respiratory acidosis, kidneys sacrifice chlorides to reabsorb larger numbers of _____ ions.
A) Sodium B) Magnesium C) Bicarbonate D) Potassium E) Chloride
Which of the following findings is MOST significant in a patient with acute respiratory distress?
A) A regular heart rate of 110 beats/min B) A family history of pulmonary embolism C) Prior ICU admission for the same problem D) Low-grade fever and flu-like symptoms
The latch property of smooth muscle refers to the ability of the smooth muscle to:
A. maintain a relaxed state independent of cytosolic Ca++ level B. maintain force while decreasing the rate of energy utilization C. maintain the rate of InsP3 production after agonist removal D. maintain force in the absence of myosin light-chain phosphorylation E. maintain membrane potential independent of contractile state
What cell type would have many Golgi apparatus?
A. liver cells that detoxify hydrogen peroxide B. mucus cell (secretes mucus) C. fibroblast (makes protein fibers) D. cardiac muscle cells (require large amounts of ATP) E. white blood cell, a phagocyte