Lab 5 Tissues and Skin BIO201L
Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be rejected.
Pre-lab Questions
1. What is a tissue?
A tissue is “any distinct type of material which makes up plants and animals”.
2. What is the function of epithelial tissue?
Epithelial tissue performs a variety of functions that include protection, secretion,
absorption, excretion, filtration, diffusion and sensory reception.
3. What is the function of connective tissue?
The function of the connective tissue is tissue that supports, protects, and gives
structure to other tissues and organs in the body. Connective tissue also stores fat, helps
move nutrients and other substances between tissues and organs, and helps repair
damaged tissue.
4. What is the function of muscular tissue?
The function of muscle tissue is to provide movement and provide support and function.
5. What is the function of nervous tissue?
Nervous tissue is responsible for coordinating and controlling many body activities.
Nervous tissue receives stimuli and sends impulses.
6. Describe sebaceous glands, sweat glands, and hairs with regard to the function of the
skin.
Sebaceous glands secrete sebum to keep the skin soft and waterproof. Sweat glands aid
in thermoregulation and to expel waste like urea and salt. Hair also aids in
thermoregulation and skin protection.
7. What is the function of melanin?
Melanin provides protection from the sun and gives skin and hair its pigmentation.
, Lab 5 Tissues and Skin BIO201L
8. List the similarities and differences of the layers of the epidermis.
Similarities: All layers are made up of epithelial cells, All layers are tightly packed, There
are no blood vessels, All layers but the stratum Basale layer contain keratin.
Differences: Stratum Basale layer is comprised of cuboidal cells, Stratum spinosum has
prickle cells that protect against pathogens, Stratum Granulosum contain lamellar
granules, Stratum lucidum contains proteins that give the effects of being translucent
making it hard to identify also, Stratum Corneum is made up of dead skin cells.
Student Name:
Access Code (located on the lid of your lab kit):
Lab Report Format Expectations
Utilize college level grammar and professional formatting when completing this worksheet.
Submissions without proper formatting, all required photos or sufficient responses will be rejected.
Pre-lab Questions
1. What is a tissue?
A tissue is “any distinct type of material which makes up plants and animals”.
2. What is the function of epithelial tissue?
Epithelial tissue performs a variety of functions that include protection, secretion,
absorption, excretion, filtration, diffusion and sensory reception.
3. What is the function of connective tissue?
The function of the connective tissue is tissue that supports, protects, and gives
structure to other tissues and organs in the body. Connective tissue also stores fat, helps
move nutrients and other substances between tissues and organs, and helps repair
damaged tissue.
4. What is the function of muscular tissue?
The function of muscle tissue is to provide movement and provide support and function.
5. What is the function of nervous tissue?
Nervous tissue is responsible for coordinating and controlling many body activities.
Nervous tissue receives stimuli and sends impulses.
6. Describe sebaceous glands, sweat glands, and hairs with regard to the function of the
skin.
Sebaceous glands secrete sebum to keep the skin soft and waterproof. Sweat glands aid
in thermoregulation and to expel waste like urea and salt. Hair also aids in
thermoregulation and skin protection.
7. What is the function of melanin?
Melanin provides protection from the sun and gives skin and hair its pigmentation.
, Lab 5 Tissues and Skin BIO201L
8. List the similarities and differences of the layers of the epidermis.
Similarities: All layers are made up of epithelial cells, All layers are tightly packed, There
are no blood vessels, All layers but the stratum Basale layer contain keratin.
Differences: Stratum Basale layer is comprised of cuboidal cells, Stratum spinosum has
prickle cells that protect against pathogens, Stratum Granulosum contain lamellar
granules, Stratum lucidum contains proteins that give the effects of being translucent
making it hard to identify also, Stratum Corneum is made up of dead skin cells.
