Which hormone promotes cell division and delays senescence in plants?
a. abscisic acid
b. auxin
c. cytokinin
d. ethylene
e. gibberellin
C
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The Calvin cycle
A) is responsible for the fixation of CO2 into cell material. B) utilizes both NAD(P)H and ATP. C) requires both ribulose bisphosphate carboxylase and phosphoribulokinase. D) uses CO2, NAD(P)H, and ATP to make biomass with ribulose bisphosphate carboxylase and phosphoribulokinase.
Genes that are highly conserved are
A) found in a wide range of species. B) repeated many times in a genome. C) found in humans only. D) deleted by natural selection.
Bacteria are abundant and useful decomposers. What are fungal decomposers able to do better than bacteria?
What will be an ideal response?
All of the following are correct about the autoclave, except
A. the duration of the process depends on how full the chamber is. B. it is the temperature that kills the microbes, not the pressure by itself. C. it is important not to overload the chamber. D. it is effective for sterilizing powders, oils, and waxy substances. E. sterilization is achieved when steam condenses against the objects in the chamber and raises their temperatures.