Which of Following Protects from Ultraviolet Radiation

question 48

Multiple Choice

Which of following protects from ultraviolet radiation?

• A) carotene
• B) hemoglobin
• C) vitamin D
• D) melanin
• E) melanocytes

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Definitions:

Type II Pneumocytes

are specialized cells in the alveoli of the lungs, responsible for the production and secretion of pulmonary surfactant to decrease surface tension.

Expiration

The process of releasing breath or air from the lungs through the respiratory system.

Diaphragm

A large, dome-shaped muscle located at the base of the lungs and thoracic cavity that contracts and relaxes to aid in the breathing process by creating a vacuum that pulls air into the lungs.

Elastic Properties

Characteristics of materials that allow them to stretch and return to their original shape without permanent deformation.