Sodium and glucose are transported together from the intestinal lumen into an intestinal cell. The carrier protein is a(n) ________ and the process is called ________.
A. antiport; countertransport
B. antiport; cotransport
C. symport; cotransport
D. symport; countertransport
E. uniport; facilitated diffusion
Answer: C
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Which of the following are involved in the pulmonary circuit?
A) superior vena cava, right atrium, left ventricle B) right ventricle, pulmonary veins, aorta C) right ventricle, pulmonary trunk, left atrium D) inferior vena cava, right atrium, aorta E) left ventricle, pulmonary veins, right atrium
Which of the following is an appropriate response to carbon monoxide (CO) poisoning?
A) hyperventilation to exhale CO from the body B) hyperbaric oxygen chamber to increase PO2 and clear CO from the body C) slow breathing into a paper bag D) immediate application of bicarbonate ions to facilitate removal of CO from Hb
Hyperventilation produces which of these effects?
A) decreased blood PCO2 B) vasodilation of peripheral blood vessels C) decreased blood pressure D) increase in pH E) all of these
Which statement does NOT apply to the distal tubule?
a. Secretion and reabsorption can take place b. It secretes K+ c. It secretes H+ d. It secretes Na+