Science General · Biology

Cosmetology and Beauty Therapy

1,493 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

What is a diode laser with a wave length of 800 nm used for

  1. Treating vascular lesions

  2. tattoo removal

  3. Hair removal

  4. treating endovenous fiber
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 800 nm diode laser is widely used for hair removal because it effectively targets melanin in the hair follicle while minimizing damage to the surrounding skin.

Multiple choice

What are q-switched lasers commonly used for

  1. Hair removal

  2. reducing collagen levels

  3. Treating pigmented lesions

  4. Stimulating melanin production in hypopigmented skin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Q-switched lasers are specifically designed to deliver very short, high-intensity pulses, which are ideal for shattering pigment particles in pigmented lesions or for tattoo removal.

Multiple choice

What is a chromophore?

  1. Colored cells or target in epidermis or dermis

  2. Plume or smoke that is generated from an ablative device

  3. The splitting up or destruction of cells

  4. colored cells that areto be avoided with lasers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A chromophore is a specific part of a molecule or tissue that absorbs light at a particular wavelength. These are the targets for laser treatments, such as melanin or hemoglobin.

Multiple choice

What does the term ablative mean?

  1. The ability to cut, vaporize, or remove using a laser

  2. No disruption of the epidermis

  3. The erosion of the epidermis

  4. To stimulate or change cellular function
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ablative lasers work by removing or vaporizing tissue, which typically involves the destruction of the epidermis or dermis. Non-ablative lasers, by contrast, do not remove the surface layer.

Multiple choice evs seeds and seeds interdependencies among organisms hunting plant interdependence between plants and animals

Select true statements.

  1. The whole surface of the lichen thallus helps absorption of water both in liquid and vapour form.

  2. In U.S.S.R. and Sweden, lichens were used in alcohol production because they contain the carbohydrate known as lichenin.

  3. Parmelia species are used as curry powder in India.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Parmelia is a genus of the family Parmeliaceae is a medium to large foliose lichens. These grow in a wide range of shapes and forms and is usually determined by the organization of the fungal filaments. The vegetative body is called as the thallus which helps in absorbing water. The route from lichen to alcohol was first via a treatment with acid to transform lichenin (a carbohydrate) into glucose and during the Second World War, there was industrial production of sugar from lichens in Russia. The incentive to use lichens came from the scarcity of beet sugar and the need to use grain or potato starch for military alcohol production. 

Thus, the correct answer is option D.

Multiple choice bio-chemistry inborn errors of metabolism haemophilia and colour blindness non infectious diseases keeping diseases away

Correct pathway for synthesis of skin pigment is?

  1. Tyrosine - dopa - melanin - dopaquinone

  2. Tyrosine - dopaquinone - dopa - melanin

  3. Dopa - tyrosine - dopaquinone - melanin

  4. Tyrosine - dopa - dopaquinone - melanin

  5. Tyrosine - melanin - dopaquinone - dopa.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The biochemical pathway for melanin synthesis involves the conversion of the amino acid tyrosine into dopa, then into dopaquinone, and finally into melanin.

Multiple choice physics some natural phenomena types of charges and their interaction transfer of charges charging and discharging transfer of charge

If we rub our dry forearm with a silk cloth, the hairs on the forearm will stand straight. This is because:

  1. of the attraction force between the hairs and the cloth.

  2. of the charge acquired to the forearm due to rubbing.

  3. of the magnetic field created due to rubbing.

  4. none of the above.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the forearm is rubbed with a cloth of silk, the dry forearm acquires positive charge. So, all the hairs there acquire same positive charge and repel each other. Thus the hairs stand straight after rubbing.

Multiple choice evs - i growth and personality development heredity and other supporting factors for development all together community work and its importance

I. Suntanned skin is hereditary.
II. Crowning of hair is hereditary.

  1. I and II both are true

  2. I and II both are false

  3. I is false and II is true

  4. I is true and II is false
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Suntanned skin comes from interaction between persons phenotype and sun. Crowning of hairs is a characteristic transferred to son from father.
So, the correct answer is 'I is false and II is true'
Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases
Which of the following causes almost unbearable irritation of the skin?

  1. Lint of Gossypium

  2. Staminal hair of Tradescantia

  3. Prickles of Rosa indica

  4. Stinging hair of Urtica dioca
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The trichomes of Utrica cover the leaf and the stem surfaces, each trichome has a base attached to the epithelial layer, and a cell filled with irritant/allergent at the tip, that breaks on mechanical damage, touch, or when attempted to be eaten by herbivores. On breaking the chemical substances are injected into the predator causing unbearable irritation.

So, the correct answer is 'Stinging hair of Urtica dioca'