Melanin

Melanin can be found only in the skin.

• True

• False

People with darker skin tones have more melanin in their skin cells.

• True

• False

Melanin can be found in the hair, skin and ____, as well as many other organs.

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NGSS.MS-LS1-5

NGSS.MS-LS3-1

The ingredient that gives skin its color and a version of its own sunscreen is known as:

• Melanocytes

• Pigment

• Melanin

What is melanin?

• A protein pigment that absorbs and reflects light

• A protein that is waterproof and tough

• A cell found in the epidermis

• A vitamin that helps you sleep

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NGSS.MS-LS1-5

How does melanin protect cell's DNA from the damaging effects of Ultraviolet light?

• It relies on folate

• It doesn't you must use sunscreen

• it activates vitamin D3 production which takes care of that

• Forms a protective cap over the nucleus of skin cells

Different tones of human skin color evolved 

• in response to varying levels of UV radiation in the environment

• Randomly and for no reason at all

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NGSS.HS-LS4-2

NGSS.HS-LS4-5

What is the evolutionary benefit for dark skin near the equator?

• Skin cancer protection

• Folate Protection

• It has no evolutionary relationship

• Easier vitamin D production

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NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which of the following is a primary function of melanin in the human body?

• To provide structural support to cells

• To protect against UV radiation

• To aid in digestion

• To regulate body temperature

Melanin is produced by which type of cells in the skin?

• Keratinocytes

• Fibroblasts

• Melanocytes

• Adipocytes