“Complement” refers to a set of specific
a. vaccines.
b. defense proteins.
c. antibodies.
d. antibiotics.
e. lymphocytes.
Answer: b
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Clostridium botulinum produces a deadly toxin that stops muscle contractions by
a. destroying cell membranes. b. killing mitochondria. c. disrupting the structure of actin filaments. d. preventing ATP synthesis. e. blocking acetylcholine release.
Which component of plasma constitutes antibodies?
a. albumin b. dissolved gases c. fibrinogen d. hormones e. immunoglobulins
Once the body becomes adapted to drugs, it takes
even greater exposure to that drug to achieve the same level of reaction. This condition is known as a. synergism. b. habituation. c. psychological dependence. d. tolerance. e. concealment.
Which of these would be an effect of an excess of thyroid hormones?
A) More thyroid hormone would be produced. B) A would release less TRH. C) B would release more TSH. D) The thyroid would swell and produce a goiter.