Most enzymes are composed of ____
a. RNA only
b. protein only
c. substrate only
d. RNA and protein
e. protein and substrate
ANSWER: b
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The most likely identification of an anaerobic gram-positive coccus that is resistant to metronidazole is:
a. Streptococcus. b. Peptostreptococcus. c. Leptotrichia. d. Peptococcus.
In photosystem II of photosynthesis, the H2O molecules are split to form a proton gradient and put electrons in the electron transport chain. This step indicates H2O is initially
A. respired. B. reduced. C. energized. D. broken down. E. oxidized.
Monocot leaves typically have:a
alternately palmate venation. b. netted venation. c. parallel venation. d. alternately pinnate venation. e. no venation.
Bundle scars would be found within a(n) leaf scar. Indicate whether the statement is true or false