Question

Which is usually the slowest way to regulate a reaction in a metabolic pathway?
A) Covalent modification
B) Changing the enzyme concentration
C) Allosteric modulation
All of the above are usually equally as fast.

Answer 1

Answer:

B) Changing the enzyme concentration

Answer 2

The slowest way to regulate a reaction in a metabolic pathway is by changing the enzyme concentration.

Metabolic Pathway:

It is series of chemical reactions that occurred in the cell. Metabolites referred to as species participating in an enzymatic reaction.

Role of Enzymes:

Enzymes act as catalysts – they allow a reaction to proceed more rapidly – and they also allow the regulation of the rate of a metabolic reaction

The binding of an enzyme to its substrate lowers the activation energy of the reaction. If an enzyme is present, the amount of energy needed to make a product is lowered.

In metabolic reactions there is transfer of electrons from one compound to another by processes catalyzed by enzymes.

Enzymes participates in increasing and decreasing the metabolism process inside our body. On increasing the substrate concentration, the rate of enzyme activity also increases.

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