Carbohydrate
Each reaction in a metabolic pathway is

controlled by the end product
reversible
irreversible
catalyzed by a specific enzyme

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Carbohydrate
Which of the following statements about the energy needs of cells is false?

The laws of thermodynamics force cells to acquire energy
Many cellular reactions have an associated activation energy
The most usable energy for cells comes from the rapid combustion of glucose
Without a continuous input of energy, cell disorder will increase

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