Some glucose transport proteins can also bind fructose, another six-carbon monosaccharide, but not lycine, an amino acid, because transport proteins exhibit ________ for their ligands.
A. affiliation
B. specificity
C. affinity
D. saturation
E. competition
Answer: B
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The loss of water in the urine due to unreabsorbed solutes is known as ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following events in the chloride shift occurs last?
A. CO2 and H2O ? H2CO3 B. Carbonic acid dissociates to form bicarbonate and H+. C. Carbonic acid dissociates to form water and CO2. D. Bicarbonate ions diffuse into the plasma. E. Carbon dioxide diffuses into a red blood cell.
The pollex is located in which region?
A) 18
B) 23
C) 12
D) 14
E) 16
During inspiration,
a. intra-alveolar pressure falls below atmospheric pressure. b. the diaphragm contracts. c. the internal intercostal muscles contract. d. conditions a and b exist e. conditions a, b, and c exist