When bacterial cells participate in conjugation, the bridge between the cells through which the DNA passes is
A. a pilus.
B. made of lipopolysaccharide.
C. a flagella.
D. a capsule.
E. made of peptidoglycan.
Answer: A
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Among the major causes of vulvovaginal candidiasis is/are
A. sexual promiscuity. B. intense antibacterial treatment. C. disruption of normal microbiota. D. the use of oral contraceptives. E. intense antibacterial treatment, disruption of normal microbiota AND the use of oral contraceptives.
All of the following pertain to interferon except
A. it increases capillary permeability and vasodilation. B. it is a protein. C. it is produced by certain white blood cells and tissue cells. D. it includes alpha, beta, and gamma types. E. it inhibits viruses, tumors, and cancer gene expression.
The kidneys perform all of the following functions EXCEPT ____
a. renin production b. removal of wastes c. regulation of fluid volume d. activation of vitamin A e. stimulation of red blood cell production
Although glycolysis requires an input of ATP, this pathway results in a net gain of two ATP; therefore it is a(n) ________ pathway
A) exergonic B) endergonic C) oxidative D) reductive E) neither exergonic nor endergonic