21. The Generation of Biochemical Energy

Indicate which of the following conditions represents an active enzyme.

I. An enzyme after its release of Cu (I) ion used for catalytic activity. 

II. A polypeptide chain that is biologically functional. 

III. An enzyme that binds to organic factor in the form of Vitamin B₂.

IV. None of the following

Which of the following is a cofactor and which is a coenzyme?

a. Fe²⁺

Does the enzyme described in each of the following statements require a cofactor to be active?

c. The presence of K⁺ does not affect the reaction.

Identify the metabolic nucleotide described by the following:

a. contains the vitamin riboflavin

Identify the metabolic nucleotide described by the following:

a. contains a form of the vitamin niacin