Quiz on Body Membranes

What is the primary function of keratin in the skin?

• To provide color

• To produce sweat

• To toughen cells

• To absorb nutrients

What is the result of a burn or friction on the skin?

• Increased melanin production

• Formation of a blister

• Production of more keratin

• Increased vitamin D synthesis

What is the role of melanocytes in the epidermis?

• To produce keratin

• To form desmosomes

• To produce melanin

• To act as touch receptors

Tags

NGSS.MS-LS1-2

What is the function of the stratum lucidum in the skin?

• To produce melanin

• To provide a barrier in hairless skin

• To connect keratinocytes

• To act as immune cells

Tags

NGSS.MS-LS1-2

What is the effect of a restriction in blood supply to the skin?

• Increased elasticity

• Cell death and ulcers

• Increased collagen production

• Enhanced hydration

What is the function of the nerve endings in the dermis?

• Produce sweat

• Store fat

• Send messages to the central nervous system

• Produce oil

Tags

NGSS.MS-LS1-8

What is the primary function of the epidermis in the skin?

• To provide a waterproof barrier

• To store fat

• To produce sweat

• To regulate body temperature

What happens to the skin when exposed to prolonged UV radiation?

• Increased production of collagen

• Formation of sunburn

• Decreased melanin production

• Enhanced elasticity

What is the role of the hypodermis in the skin structure?

• To produce melanin

• To act as a shock absorber

• To provide a barrier against pathogens

• To regulate sweat production

What is the function of the sebaceous glands in the skin?

• To produce sweat

• To secrete oil

• To store fat

• To regulate temperature