The majority of carbon dioxide is carried as:

a. CO2 bound to red blood cells
b. Bicarbonate ion in the plasma
c. Hydrogen ion bound to red blood cells
d. Water in the plasma


Ans: b. Bicarbonate ion in the plasma

Biology & Microbiology

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The process of aging is described by the term ____

a. senescence b. puberty c. neonate d. morulation e. fetalism

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What will be an ideal response?

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Jill is lost in the desert and ran out of water six hours ago. What physiological effect or response would most likely occur in this situation?

A. Decrease in blood osmolarity B. Decreased release of ADH from the posterior pituitary C. Increased permeability of the collecting ducts in the kidney D. Decreased thirst sensation E. Increased release of atrial natriuretic hormone

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