Which of the following is pyogenic (pus forming)?
A. Streptococcus pyogenes
B. Lactococcus lactis
C. Streptococcus mutans
D. Streptococcus fecaelis
Answer: A
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Enzymes that are expressed at a constant level all the time are said to be .
A. inducible B. constitutive C. attenuated D. repressible
Pyruvate is converted to acetyl CoA by a unique enzyme known as
A) pyruvate decarboxylase. B) pyruvate dehydrogenase complex. C) transitionase system. D) multiplex enzyme system. E) pyruvate CoA transferase.
Although we know of threats to about ____ wild plant species, the actual number is likely much higher
a. 5,000 b. 7,000 c. 12,000 d. 37,000 e. 130,000
Which of the following structures is exclusively associated with prokaryotic cells?
A) membrane-bound nucleus B) nucleoid C) chromosome D) ribosomes