Question

Lysine is used as:
A.Disinfectant
B.Germ Killer
C.Treating eye disease
D.Anti-cancer drug

Answer 1

We must know that amino acids play an important role in the human body. They are essential for processes like building proteins, production of hormones and neurotransmitters. They could also be taken as supplements to boost physical actions (or) improve mood.

Complete step by step answer:
We know that amino acids are compounds that consist of carbon, nitrogen, hydrogen and oxygen. They are known as building blocks of proteins. Our body requires twenty different amino acids for growth and functionally.
Out of these twenty amino acids, only nine amino acids are very necessary. We can classify amino acids as,
1.Essential amino acid
2.Non-essential amino acid
Essential amino acids are taken via food and the nine essential amino acids are histidine, isoleucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine.
Body makes non-essential amino acids. Other than 9 essential amino acids, rest all come under non-essential amino acids. We can use amino acids in assisting the creation and growth of muscles, connective tissue and skin, healing and repair, normal digestion and providing energy for our body.
From the above statement, we can see that lysine is an essential amino acid. Lysine is alanine with substituent propylamine on $\beta -$carbon.
Lysine plays a significant role in synthesis of protein, production of enzyme and hormone.
The symbol of lysine is Lys and we can give the structure of lysine as,

In the given question, we have to choose the usage of lysine. Lysine could be used as a germ-killer, treating eye disease and anti-cancer drugs.
Hence, options (b), (c) and (d) are correct.

Note:
We have to remember that lysine could also helpful in
-Production of energy
-Function of immune
-Collagen production
-Production of elastin
Lysine is particularly important for the proper physical performance and also for the production of carnitine, which is primarily responsible for converting fatty acids into energy.