Pyridoxal in its active form?

Question

Pyridoxal in its active form has all the following characteristics,

except:

a) It is covalently bonded to its enzyme.

b) It requires being attached to a phosphate group.

c) It bonds to an amine group through by means of the phosphate group.

d) It has a particularly reactive carbonyl group.

e) All of these characteristics are true.

Answer 1

a) It is covalently bonded to its enzyme. YES

b) It requires being attached to a phosphate group. YES to produce pyridoxal phosphate -the active form

c) It bonds to an amine group through by means of the phosphate group. - Bonds to the enzyme via its reactive aldehyde group

d) It has a particularly reactive carbonyl group.  NO

e) All of these characteristics are true. NO