The final equilibrium state reached by a molecule that enters a cell by facilitated diffusion is the same as that for a molecule that enters the cell by diffusion.
Answer the following statement true (T) or false (F)
True
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Answer the following statements true (T) or false (F)
1. Proper control of the hydrogen ion concentration is important to the functioning of hemoglobin. 2. The pH of a solution is based on the exponent of the hydrogen ion concentration. 3. More acids than bases are usually added to body fluids. 4. When sodium bicarbonate buffers a strong acid, the hydrogen ion from the acid replaces the carbon in the bicarbonate. 5. With successful CPR after a cardiac arrest, proper heart rate and breathing are restored. Because of this, the body’s respiratory and urinary pH control mechanisms can quickly return the body to its proper pH.
An infectious disorder that causes alveoli to fill with fluid is ________.
Fill in the blank(s) with the appropriate word(s).
Muscarinic receptors bind ________
A) monoamine oxidase (MAO) B) epinephrine C) acetylcholinesterase D) acetylcholine E) norepinephrine
Which of the following statements concerning the vagina is false?
A) It serves as a passageway for the elimination of menstrual fluids. B) It receives the penis during sexual intercourse. C) It holds sperm prior to their passage to the uterus. D) It forms the lower portion of the birth canal. E) It loses a portion of its lining during menses.