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A cell expressing a feedback inhibition pathway that controls the levels of sugar hydrolysis is studied in a lab. Cells are placed in a sugar solution that can then be stained to detect sugar levels.

The normal cells in the solution show a level of sugars equivalent to a unit of 10.

A compound is added to a second sugar solution with the cells. This compound binds covalently to the allosteric site of an enzyme involved in the pathway and now the level of sugars are equivalent to a unit of 0.1.

Which of the options below BEST explain what happened in this experiment?


The enzyme with the allosteric site is responsible for the sugar hydrolase activity.


The compound in the second solution is deactivating the sugar hydrolases.


The compound in the second solution is degrading the sugars in the solution.

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