Which of the following will cause a decrease in the surface area of the respiratory membrane?
A. tuberculosis
B. pneumonia
C. emphysema
D. All of the choices will reduce surface area of the respiratory membrane
Answer: C
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Most transmembrane proteins have ___________ regions facing the intra- and extracellular fluid, and __________ regions embedded in the phospholipid bilayer.
A. hydrophilic; hydrophilic B. hydrophilic; hydrophobic C. hydrophobic; hydrophobic D. hydrophobic; hydrophilic E. lipophilic; lipophobic
__________ is a hormone that lowers the level of circulating glucose in the blood.
Fill in the blank(s) with the appropriate word(s).
Heart rate in a fetus is about ____, in a newborn about _____, and in an adult about ___
A) 200; 160; 120 B) 100; 100; 100 C) 70; 140; 145 D) 145; 140; 70
Lecithin prepares fats for hydrolysis by forming ________.
A. low density lipoproteins (LDL) B. emulsification droplets C. chylomicrons D. micelles E. triglycerides, fatty acids, and glycerol