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Which of the following types of enzymes catalyse the covalent addition of inorganic phosphate to a molecule?Group of answer choicesDehydrogenasesIsomerasesPhosphorylasesHydratases

Question

Which of the following types of enzymes catalyse the covalent addition of inorganic phosphate to a molecule?Group of answer choicesDehydrogenasesIsomerasesPhosphorylasesHydratases

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Solution

The type of enzyme that catalyses the covalent addition of inorganic phosphate to a molecule is Phosphorylases.

Step by Step Explanation:

  1. Enzymes are biological catalysts that speed up chemical reactions in cells. They do this by lowering the activation energy of the reaction.

  2. Each type of enzyme is specialized to catalyze a specific type of reaction.

  3. Phosphorylases are a type of enzyme that adds an inorganic phosphate group (PO4) to a molecule in a process called phosphorylation.

  4. During this process, the phosphorylase enzyme catalyzes the transfer of a phosphate group from inorganic phosphate (Pi) to an acceptor molecule.

  5. Therefore, the correct answer is Phosphorylases.

Dehydrogenases are involved in redox reactions, isomerases catalyze the rearrangement of atoms within a molecule, and hydratases are involved in the addition or removal of water, but none of these are involved in the addition of inorganic phosphate to a molecule.

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