NEET PG DENTAL EXAM

HISTOLOGY

INTEGUMENTARY SYSTEM SKIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is this protein that makes the hair, skin, and nails?
A
melanin
B
vitamin d
C
vitamin e
D
keratin
Explanation: 

Detailed explanation-1: -What is keratin? Keratin is a protein that helps form hair, nails and your skin’s outer layer (epidermis). It helps support your skin, heal wounds and keep your nails and hair healthy. There are 54 kinds of keratin in your body.

Detailed explanation-2: --keratin is a polypeptide chain, typically high in alanine, leucine, arginine, and cysteine, that forms a right-handed -helix. Two of these polypeptide chains twist together to form a left-handed helical structure known as a coiled coil.

Detailed explanation-3: -Your nails are made of keratin Keratin is a type of protein that forms the cells that make up the tissue in nails and other parts of your body.

Detailed explanation-4: -Keratin is a tough, fibrous protein found in fingernails, hair, and skin. The body may produce extra keratin as a result of inflammation, as a protective response to pressure, or as a result of a genetic condition.

There is 1 question to complete.