Name the Substance That Protects the DNA of Rapidly Dividing

question 20

Multiple Choice

Name the substance that protects the DNA of rapidly dividing skin cells from the damage caused by ultraviolet rays from the sun.

• A) keratin
• B) melanin
• C) hemoglobin
• D) carotene

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Definitions:

Blood Glucose Level

The concentration of glucose present in the blood, which is a critical indicator of metabolic health and is regulated by insulin and glucagon.

Ghrelin Production

The process of producing ghrelin, a hormone primarily released by the stomach that stimulates appetite.

Leptin Levels

Concentrations of leptin, a hormone involved in regulating energy balance and appetite.

Basal Metabolic Rate

The number of calories required to keep your body functioning at rest, also known as BMR.