What would happen to metabolic reactions in a cell without any regulatory controls?
AThey would need no enzymes
BThey would speed up without limit
CThey would stall at equilibrium
DThey would reverse permanently
Answer & Solution
Correct answer: C. They would stall at equilibrium
1. Cellular respiration must be regulated to provide balanced amounts of energy.
2. Without controls, metabolic reactions would quickly come to a standstill.
3. That happens because the forward and backward reactions reach a state of equilibrium.
4. Resources would also be used inappropriately, since the cell does not always need maximum output.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 7 "Cellular Respiration", section 7.7 Regulation of Cellular Respiration_
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