Free 5-question sample test with instant feedback. See how ready you are.
Question 1
What is the outermost layer of the epidermis called?
Answer: The stratum corneum. It is composed of dead, keratinized cells that form a protective barrier against the environment.
Question 2
In which layer of the epidermis does cell mitosis (cell division) occur?
Answer: The stratum basale, also called the stratum germinativum. This is the deepest layer of the epidermis where new skin cells are produced.
Question 3
What is the name of the protein that makes skin cells hard and gives the epidermis its protective quality?
Answer: Keratin. It is a fibrous protein produced by keratinocytes as cells migrate toward the skin's surface.
Question 4
Which skin layer contains collagen, elastin, blood vessels, and nerve endings?
Answer: The dermis. It is the second, deeper layer of skin that provides structural support and nourishment to the epidermis.
Question 5
What cells in the epidermis are responsible for producing melanin?
Answer: Melanocytes. They are located in the stratum basale and determine skin and hair color based on the amount of melanin they produce.