What Is Keratin, and from What Is It Made

question 55

Multiple Choice

What is keratin, and from what is it made?

• A)Animal hair, made from protein
• B)Vegetable fiber, made from protein
• C)Animal hair, made from polysaccharides
• D)Vegetable fiber, made from polysaccharides

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Definitions:

Charles's Law

A principle in physics that states the volume of a gas increases with increasing temperature, provided the pressure is constant.

Inspiratory Reserve Volume

The additional amount of air that can be inhaled after a normal inhalation, increasing lung volume.

Expiratory Reserve Volume

The additional amount of air that can be expelled from the lungs after a normal exhalation.