Carbonic anhydrase
a. is found in the red blood cells.
b. catalyzes the formation of carbonic acid from carbonic dioxide and water.
c. catalyzes the formation of oxyhemoglobin from oxygen and reduced hemoglobin.
d. both (a) and (b) above.
e. both (a) and (c) above.
D
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Which is not correct regarding the juxtaglomerular apparatus?
A. The macula densa cells monitor electrolyte concentrations in tubular fluid. B. Renin activates the renin-angiotensin pathway, resulting in aldosterone production. C. The juxtaglomerular cells are modified smooth muscle cells of the efferent arteriole. D. The macula densa cells are modified epithelial cells of the distal convoluted tubule. E. The juxtaglomerular cells release renin.
In birds, the muscular __________ grinds food before it enters the small intestine
Fill in the blank(s) with correct word
____________________ is the pigment that can store small amounts of oxygen in the skeletal muscle
Fill in the blank(s) with correct word
The respiratory centers are located in the ________.
A. midbrain and medulla oblogata B. hypothalamus and medulla oblongata C. hypothalamus and pons D. pons and medulla oblongata