Idaho Barber Licensure Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the Idaho Barber Licensure Test. Engage with multiple choice questions and flashcards, each question with hints and explanations. Get ready for your exam success!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Hair is chiefly composed of a horny substance called:

hemoglobin
melanin
keratin
calcium

The correct answer is: keratin

Hair is composed of keratin, which is a type of protein found in our skin, hair, and nails. While options A, B, and D may all be present in the human body, they are not the main components of hair. Hemoglobin is found in red blood cells and is responsible for transporting oxygen throughout the body. Melanin is a pigment that gives skin and hair its color. Calcium is a mineral that helps with bone health and muscle function, but is not a major component of hair. Therefore, the correct answer is keratin.