Structural Basis of the Skin

Melanin is a type of cell that produces ​ (a)   within our skin.

• color
• texture
• hair
• Vitamin D

Answer explanation

A yellow-red or brown-black pigment produced by melanocytes.

What layer of skin produces Melanin ?

• Epidermis

• Dermis

• Hypodermis

Answer explanation

Epidermis is the outer layer of skin on our body would produces melanin, which determines the color of your skin.

Melanocyte cells serve the following purpose except

• Produce melanin

• Helps protect the cells in skin from UV light

• signaling on immune response to foreign invaders

Answer explanation

Melanocyte cells not signaling on immune response to foreign invaders.

A pigment that gives the skin its color

• Dermis

• Epidermis

• Melanin

• Pore

Answer explanation

Melanin provides pigmentation to your skin eyes and hair.

​ (a)   is the coloring in skin and is found in the Epidermis.

• Melanin
• Oil
• Perspiration
• Pores

Answer explanation

Located mostly in the Epidermis, where it absorbs UV radiation.

​ (a)   is a cell which produces dark brown pigment.

• Melanocytes
• Keratinocytes
• Merkel cells
• Langerhans cell

Answer explanation

The number of Melanocytes is about the same in all people; differences in skin color is due to the amount of pigment produced.

Our skin gets Vitamin D from ​ (a)  

• Sunlight.
• Skin
• Bones
• Food

Answer explanation

When your skin is exposed to sunlight, it manufactures Vitamin D.

​ (a)   absorbs sunlight to protect skin cells from sun damage.

• Melanin
• Keratin
• Carotenoids
• Melatonin

Answer explanation

Keratin is a protein that helps from hair, nails and skin's outer layer. Carotenoids is yellow orange pigment. Melatonin is a hormone made in the body.

Integumentary system use ​ (a)   to make Vitamin D.

• UV light
• Milk
• Takis
• Cheese

Answer explanation

The skin is responsible for producing Vitamin D. During exposure to sunlight, ultraviolet radiation penetrates into the Epidermis.

Is it true that all humans have the same skin color but different shades of brown?

Answer explanation

Differences in skin color is due to the amount of pigment produced.