Science General · Biology

Cosmetology and Beauty Therapy

1,630 Questions

Cosmetology and Beauty Therapy encompasses skincare, haircare, and aesthetic treatments. This hub provides practice questions related to cosmetic chemistry, skin anatomy, and specialized treatments like hair removal. It is a valuable resource for students preparing for vocational and aesthetician certification exams.

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Cosmetology and Beauty Therapy Questions

Multiple choice

Which of the following characterises melanin?

  1. It enhances the penetration of UV radiation through the skin.

  2. Skin may vary frequently in the amount of melanin it contains.

  3. Individuals with high concentration of melanin in their skin are at a greater risk for skin cancer.

  4. It enhances the penetration of infrared radiation through the skin.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ultraviolet radiation from the Sun stimulates melanocytes in the skin to produce more melanin, which in turn makes the skin browner. This seasonal tanning is most noticeable among light complexioned people. It has the effect of shielding the inner skin.

Multiple choice

Swimming for a long time in salt water makes the skin of one's finger tips wrinkled. What is responsible for this?

  1. Osmosis

  2. Dialysis

  3. Electrodialysis

  4. Coagulation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Your skin has a special oil known as sebum which lubrictaes & protects the skin (it also makes it a little waterproof). However when you spend a long amount of time in the water the sebum is washed away. When this happens, the water can make its way to your upper layer of skin. The water does this by osmosis,

Multiple choice

Which among the following selenium compounds can cause discolouration of hairs?

  1. Selenium dioxide

  2. Selenium disulphide

  3. Selenium trioxide

  4. Selenoyl fluoride
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Selenium disulphide has a composition that approximates to SeS2 and is sometimes called selenium sulphide. However, as used in proprietary formulations, it is not a pure chemical compound but is a mixture where the overall Se:S ratio is 1:2.  It can cause discolouration of the hair and alter the colour of hair dyes. It may also discolour metallic jewellery.

Multiple choice

Human hair is made of the same substance as

  1. finger nails

  2. teeth

  3. bones

  4. muscles
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hair and fingernails are both composed primarily of keratin, a tough fibrous structural protein that provides strength and protection. Teeth contain enamel and dentin, bones are made of calcium phosphate minerals, and muscles are composed of different protein fibers called actin and myosin.

Multiple choice

In which of the following syndromes, an individual develops sun-sensitive rashes on the face, hands, and forearms?

  1. Hippel-Lindau syndrome

  2. Noonan syndrome

  3. CHARGE syndrome

  4. Bloom syndrome
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

People with Bloom syndrome have low birth weight and proportionate short stature as they grow. There are distinctive facies, with underdeveloped malar bones and a sun-sensitive rash appears on the face, hands, and forearms.

Multiple choice

The nose in humans is wrinkled by

  1. levator palpebrae superioris

  2. nasalis

  3. procerus

  4. dilator naris
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It is a small pyramidal muscle originating from the fascia of the nasal bone. It is innervated by buccal branches of the facial nerve. It draws down the eyebrows and wrinkle the nose.

Multiple choice

Epidermis of skin is composed of

  1. elastic fibre

  2. blood vessel

  3. cornified layer

  4. nerves
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cornified layer (stratum corneum) is the outermost layer consisting of several piled up layer of flattened dead cells.