Why is it life-threatening to have a low pH?
What will be an ideal response?
A low pH can be life-threatening because the change in hydrogen ion concentration can cause certain proteins, such as vital enzymes, to become inactive. When this occurs, the proteins become nonfunctional, and if they catalyze reactions that are necessary for life, life will cease.
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The coronary arteries emerge at the base of the __________.
a. aorta b. circumflex branch c. pulmonary trunk d. inferior vena cava
One function of integral membrane proteins in the plasma membrane of cells is to form channels to allow passage of nonpolar solutes into the cell.
Answer the following statement true (T) or false (F)
The combining form for corner of the eye is:
A) corn/o B) kerat/o C) conjunctiv/o D) canth/o
ADH promotes increased water permeability of the
ADH promotes increased water permeability of the A) loop of Henle. B) proximal convoluted tubule. C) distal convoluted tubule. D) papillary duct. E) minor calyx.