Question 1:

Which of the following is true about hair?

Explanation: A) Hair is made of dead cells. The hair shaft is composed of dead, keratinized cells that grow from hair follicles in the skin.

Question 2:

Which of the following glands secrete oil to lubricate the skin and hair?

Explanation: B) Sebaceous glands secrete oil (sebum) to lubricate the skin and hair. Sebum helps keep the skin moisturized and prevents excessive drying.

Question 3:

What is the function of sweat glands?

Explanation: B) The function of sweat glands is to regulate body temperature. Sweating helps cool the body down by releasing moisture onto the skin, which evaporates and dissipates heat.

Question 4:

Which part of the nail is responsible for new nail growth?

Explanation: D) The nail matrix, located at the base of the nail, is responsible for new nail growth. It produces new cells that form the nail plate.

Question 5:

Which of the following is a function of hair?

Explanation: A) One of the functions of hair is protection against UV radiation. Hair on the scalp acts as a natural barrier, shielding the skin from the harmful effects of the sun's ultraviolet rays.