Carbohydrate
Hexokinase activity in glycolysis is inhibited by

glucose 6- phosphate
phosphofructokinase
fructose 1,6 biphosphate
fructose 6-phosphate

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Carbohydrate
When living organisms are cooled below some critical body temperature, the metabolic reactions within their cells cease to function properly. This malfunction occurs because

there is insufficient molecular motion for substrates to interact
enzyme active sites become permanently bound to substrates
their enzymes lose the proper three-dimensional shape
the activation energy for the reaction is raised

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