Question

Tryptophan is called essential amino

acid because

a. It contains aromatic nucleus.

b. It is present in all the human

proteins.

c. It cannot be synthesised by human

body.

d. It is essential constituent of

enzymes.​

Answer 1

Answer:

tryptophan is called essential acid bcz.....

• it can't be synthesized by human body.

hope it help.... mark me as a brainliest.

Answer 2

Answer:

c. it cannot be synthesized by human body