Which reaction involving CO2 predominates within erythrocytes in the pulmonary capillaries of the lung?
A. HCO-3 combines with H+ to form H2CO3, which dissociates into CO2 and H2O.
B. HCO-3 dissociates into H+, CO, and O2.
C. CO2 combines with H+ to form HCO2.
D. CO2 combines with water to form bicarbonate ion and carbonic acid.
A
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a) D b) I c) A d) J e) G
The ________ supplies muscles and other tissues of the neck, shoulder, and upper back.
A) vertebral artery B) internal thoracic artery C) axillary artery D) brachial artery E) thyrocervical trunk
Valves in veins
A. make the use of a skeletal muscle pump unnecessary for venous blood flow. B. are found only in the largest veins. C. are formed of the tunica media. D. are the leading cause of high blood pressure. E. cause venous blood flow to go in only one direction.
A pedigree is a chart that aligns chromosome pairs by size
Indicate whether the statement is true or false