Question

question 10 (1 point)
what type of enzymes are involved in phosphorylation reactions?
○ dehydrogenase
○ kinase
○ redox enzymes
○ phosphorylase

Explanation:

To determine the enzyme involved in phosphorylation (the addition of a phosphate group), we analyze each option:

• Dehydrogenase: Involved in oxidation - reduction reactions (removal of hydrogen), not phosphorylation.
• Kinase: Enzymes that catalyze the transfer of a phosphate group from a high - energy phosphate - donating molecule (like ATP) to a substrate, which is the definition of phosphorylation.
• Redox enzymes: Involved in redox (oxidation - reduction) reactions, not phosphorylation.
• Phosphorylase: Catalyzes the addition of a phosphate group from an inorganic phosphate (not from ATP - type donors as in kinase - mediated phosphorylation), and its main role is in breaking down glycogen etc., not general phosphorylation reactions.

Answer:

B. kinase