Which layer of the skin is primarily responsible for providing insulation and energy storage?

• Epidermis

• Dermis

• Hypodermis

• Stratum corneum

What is the main protein found in the outermost layer of the skin that provides waterproofing?

• Collagen

• Keratin

• Elastin

• Melanin

Tags

NGSS.MS-LS3-1

Which of the following is NOT a function of the skin?

• Protection against pathogens

• Vitamin D synthesis

• Blood cell production

• Sensory reception

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

• Producing sweat for cooling

• Secreting oil to lubricate skin and hair

• Detecting touch sensations

• Producing melanin

Which of the following best describes the process by which the skin helps regulate body temperature?

• By producing melanin

• By dilating or constricting blood vessels

• By secreting sebum

• By synthesizing vitamin D

A person accidentally touches a hot surface and quickly withdraws their hand. Which function of the skin is primarily involved in this response?

• Excretion

• Sensory reception

• Vitamin D synthesis

• Thermoregulation

Compare the structure of fingernails and hair. Which component is common to both?

• Melanin

• Keratin

• Collagen

• Elastin

Which mechanism allows the skin to protect the body from ultraviolet (UV) radiation?

• Production of sebum

• Synthesis of melanin

• Formation of calluses

• Secretion of sweat

Which of the following best explains why sweating helps cool the body?

• Sweat absorbs heat from the blood

• Evaporation of sweat removes heat from the skin

• Sweat blocks UV rays

• Sweat increases blood flow to the skin

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

A person with albinism has a genetic mutation affecting melanin production. How does this impact their skin’s protection mechanisms?

• They have increased resistance to bacterial infections

• They are more susceptible to UV radiation damage

• Their skin produces more sebum

• They have thicker epidermis

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1