What happens during agglutination?
A. Antibodies bind to a pathogen and cause it
to precipitate.
B. Antibodies trigger the activation of the
complement system.
C. Phagocytes engulf a pathogen coated with
antibody.
D. All of the answer options are correct.
A
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Which of these junctions represents the connection between the tip of a neuron and a skeletal muscle cell from which acetylcholine diffuses?
A) tight B) neurotic C) neuromuscular D) desmosome
Sulfanilamide is an antimicrobial drug that mimics the shape of an important substrate for a particular bacterial enzyme, thereby inhibiting the enzyme. This type of inhibition is known as
A. allosteric inhibition. B. competitive inhibition. C. allosteric activation. D. noncompetitive inhibition. E. feedback inhibition.
Which of the following types of radiation is non-ionizing and has the shortest wavelength?
A. ultraviolet light B. infrared radiation C. microwaves D. X rays E. gamma rays
Which of the following toxins produced by Bordetella pertussis results in the accumulation of excess mucus in the trachea?
A. pertussis toxin B. adenylate cyclase toxin C. tracheal cytotoxin D. both adenylate cyclase toxin and tracheal cytotoxin E. both pertussis toxin and adenylate cyclase toxin