The process by which dissolved gases are exchanged between the blood and interstitial fluids is
A) cellular respiration.
B) external respiration.
C) breathing.
D) diffusion.
E) pulmonary ventilation.
D) diffusion.
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Specialized unicellular glands found in columnar and pseudostratified columnar epithelium that secrete mucus are called ________.
A. transitional cells B. keratin C. goblet cells D. cilia
The major function of the most common plasma protein, albumin, is __________.
A. maintenance of plasma osmotic pressure B. buffering changes in plasma pH C. fighting foreign invaders D. both a and b
Which portion of the antibody's structure determines the antibody's class?
A) variable region B) heavy chain C) constant region D) disulfide bonds E) light chain
Water-soluble molecules such as glucose and amino acids move across the blood-brain barrier by ________.
A. filtration B. exocytosis C. diffusion D. mediated transport E. endocytosis