Recognition proteins are most important for
A) distinguishing foreign cells from "self" cells.
B) active transport of molecules.
C) maintaining membrane fluidity.
D) maintaining membrane integrity.
E) facilitated diffusion of molecules.
A
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semifluid mass of food, gastric juice, and mucus that forms in the stomach is called
What will be an ideal response?
Silvadene, a topical treatment for burns, contains 1% silver. What category of chemical control agent is in Silvadene?
A) halogens B) heavy metals C) oxidizing agents D) aldehydes E) surfactants
Which of the following bacteria is gram-positive?
A) Pseudomonas B) Salmonella C) Streptococcus D) Bacteroides E) Rickettsia
The number of atoms coming out of a chemical reaction must equal the number of atoms going into a chemical reaction. This follows the principle of:
A) chemical bonding. B) the law of conservation of energy. C) atomic theory. D) the law of conservation of mass.