Which of the following describes an antiport system on the basal side of renal tubule cells?
A) It exchanges K+ for Na+.
B) It transports CO2 from the blood into the tubule cells.
C) It exchanges H+ for Na+.
D) It transports bicarbonate from the tubular fluid back into the tubule cells.
E) It transports H+ in both directions across the epithelium.
A
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The two types of cells that make up the nervous system are
A. macrophages and mast cells. B. neurons and chondrocytes. C. mast cells and fibrocytes. D. neurons and mast cells. E. neurons and glial cells.
Some sympathetic preganglionic fibers stimulate the adrenal medulla to release norepinephrine and epinephrine into the blood, producing a "surge of adrenaline."
Indicate whether the statement is true or false
Oxidative phosphorylation takes place within the muscle ____________________ if sufficient oxygen is present
Fill in the blank(s) with correct word
Which of the following is not one of the body systems?
1.Cardiac system 2.Digestive system 3.Circulatory system 4.Nervous system 5.Respiratory system