Grade 9 Skin Biology Worksheet
Explore the structure, functions, and common conditions of human skin at a Grade 9 biology level.
Includes
Standards
Topics
Grade 9 Skin Biology
Name:
Date:
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which layer of the skin is primarily responsible for protecting the body from pathogens and UV radiation?
Dermis
Hypodermis
Epidermis
Subcutaneous tissue
2. What is the primary function of melanin in the skin?
To produce sweat
To provide insulation
To protect against UV radiation
To synthesize Vitamin D
3. The primary protein that makes up hair, nails, and the outer layer of skin is .
4. Sweat glands are located in the layer of the skin and help regulate body temperature.
5. Describe two functions of the integumentary system (skin).
6. Label the different layers of the skin in the diagram below.
A:
B:
C:
7. The hypodermis is primarily composed of muscle tissue.
True
False
8. Vitamin D is synthesized in the skin when exposed to sunlight.
True
False
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