The most likely identification of an anaerobic gram-positive coccus that is resistant to metronidazole is:
a. Streptococcus.
b. Peptostreptococcus.
c. Leptotrichia.
d. Peptococcus.
A
Among anaerobic gram-positive cocci, the genera of clinical importance are Peptostreptococcus, Finegoldia, Micromonas, Peptococcus, Anaerococcus, and Schleiferella. If a coccus is resistant to metronidazole, then it is probably an anaerobic Streptococcus or Staphylococcus.
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Describe the route of water through a sponge.
A. enters through pores into the spongocoel and exits via the osculum. B. enters through the osculum into the spongocoel and exits via pores. C. enters through the spongocoel into the osculum and exits via pores. D. enters through the pores into the osculum and exits via the spongocoel. E. enters through the osculum into the mesohyl and exits via the spongocoel.
Which of the following is an accessory organ of the human digestive system?
a. salivary gland
b. esophagus c. stomach d. small intestine e. large intestine
The principal mineralocorticoid is:
a. ADH. b. epinephrine. c. growth hormone. d. aldosterone. e. ACTH.
The accumulation of glucose 6-phosphate inside a bacterial cell via phosphorylation of glucose is an example of
A) facilitated diffusion. B) group translocation. C) osmosis. D) plasmolysis. E) diffusion.