What is Melanin?

What is melanin?

• A protein

• A sugar

• A substance found in various cells

• A type of DNA

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Where can melanin be found in the body?

• Only in the skin

• Only in the eyes and hair

• In the skin, hair, eyes, and other organs

• Only in the liver and kidneys

What determines skin tone?

• The amount of water in skin cells

• The amount of melanin in the skin

• The size of the skin cells

• The type of blood in the body

Tags

NGSS.MS-LS1-5

What role does melanin play besides determining appearance?

• Protects the skin from bacteria

• Protects the skin from UV damage

• Prevents hair from graying

• Protects the lungs from disease

Tags

NGSS.MS-LS4-4

What does the sun emit that can damage skin cells?

• Infrared rays

• Ultraviolet (UV) light

• Gamma rays

• Visible light

What is DNA?

• The outer layer of skin

• The genetic material inside cells

• A type of melanin

• A protein found in the skin

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

What does a suntan result from?

• Increased production of melanin

• Reduced skin thickness

• Loss of melanin in the skin

• Increased cell growth

Tags

NGSS.MS-LS1-5

Who is at risk of developing skin cancer?

• Only people with pale skin

• Only people with dark skin

• Everyone, regardless of melanin levels

• Only people with no melanin

What happens when UV light damages DNA in skin cells?

• DNA repairs itself automatically

• It can lead to skin cancer

• It creates more melanin

• The skin becomes lighter

Tags

NGSS.MS-LS1-5

What is the main function of melanin in the skin?

• To give hair color

• To absorb UV light and protect DNA

• To prevent skin cells from growing

• To keep the skin hydrated

Tags

NGSS.MS-LS1-2

NGSS.MS-LS4-4