Bioaccumulation occurs when an animal ingests
a. an animal who has eaten toxic materials.
b. a plant that has absorbed toxins.
c. toxins directly from the environment.
d. all of these
D
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During the process of pyruvate oxidation, pyruvate is broken down and the remaining two carbons are attached to
coenzyme A.
a. True b. False
A simplified form of the Fick diffusion equation is J = KA (C1-C2) where J is the rate of diffusion, K is a constant, A is the area across which diffusion is occurring, and C1 and C2 are the concentrations of the substance on either side of the membrane. Given this, which of the following would INCREASE the rate of diffusion of a solute?
A. A decrease in D B. A decrease in A C. An equivalent decrease in both C1 and C2 D. An equivalent increase in both C1 and C2 E. An increase in C1 while holding C2 constant
Which of the following occurs in the nucleus?
A) Transcription only B) Both translation and replication of genetic material C) Both transcription and replication of genetic material D) Translation only E) Replication of genetic material only
Which of the following examples of type II hypersensitivities are matched incorrectly with their mediated mechanism?
A) hemolytic disease of the newborn: cytolytic B) rheumatic heart disease: cytolytic C) Goodpasture syndrome: noncytolytic D) myasthenia gravis: noncytolytic E) Graves' disease: noncytolytic