Fermentation pathways make no more ATP beyond the small yield from glycolysis. The remaining reactions serve to regenerate ________
a. FAD
b. NAD+
c. glucose
d. oxygen
B
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Look at the graph for Scutigerina weberi (note the scale of the y-axis) in the figure above. What is the best interpretation of these results?
A) The centipede had its spiracles open the entire time. B) The centipede had its spiracles closed the entire time. C) The centipede had its spiracles open when carbon dioxide (CO2) emission peaked and closed when CO2 emission was low. D) The centipede had its spiracles closed when carbon dioxide (CO2) emission peaked and open when CO2 emission was low.
Which group of drugs is effective against M. pneumoniae infections?
a. Lactams b. Sulfonamides c. Cephalosporins d. Fluoroquinolones
An important role of bacteria is:
a. primary producers. b. decomposers. c. nitrogen fixation. d. all of the above
Normal bacterial flora are clinically beneficial because they produce:
a) antibodies b) bacteriocins c) cytokines d) antihistamine