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Example Questions
Example Question #1 : Understanding Epithelial And Endothelial Cells
What is the function of epithelial cuboidal cells in the human body?
Absorption
Diffusion and absorption
Diffusion
Secretion and absorption
Secretion
Secretion and absorption
Epithelial cuboidal cells are involved in secretion and absorption in the exocrine system in the lining of glands.
Example Question #1 : Understanding Epithelial And Endothelial Cells
What is the specialized function of stratified epithelia?
Structural support for tissues
Binds bones together
Protection from mechanical and chemical forces
Absorption and filtration
Protection from mechanical and chemical forces
Stratified epithelia are composed of two or more layers of epithelial cells. The increased number of cells associated with stratified epithelia creates a more complex function; stratified epithelia are involved in protection from mechanical and chemical forces.
Example Question #2 : Types Of Cells And Tissues
Which of the following best describes the role of epithelial tissue in the human body?
Transmit chemical and electrical signals
Act as a regulatory barrier between two locations in the body
Support and connect different types of tissues and organs
Contract to create movement
Act as a regulatory barrier between two locations in the body
Epithelial tissue lines the blood vessels, organs, and cavities in the human body. The primary function of epithelial tissue is to regulate secretion, absorption, and transport across surfaces. Epithelial tissue additionally plays a role in protection and detection of signals; therefore, the role of the epithelial tissue is to act as a regulatory barrier.
Example Question #441 : Cellular Biology
Epithelial cells can be which of the following morphologies?
Columnar
Cuboidal
Squamous
All of these
All of these
Epithelial cells can be categorized by morphology, or shape. Epithelial cells exist in the following morphologies: squamous, columnar, or cuboidal.
Example Question #9 : Understanding Epithelial And Endothelial Cells
Which of the following is not a function of epithelial tissue?
Selective absorption
Muscle contractions
Protection
Secretion
Muscle contractions
Epithelial tissue acts as a barrier in the human body. The functions of epithelial tissue are broad and include selective absorption, secretion, transport, and protection.
Example Question #1 : Types Of Cells And Tissues
Which of the following best describes the morphology of squamous cells in epithelial tissue?
They are cube-shaped
Their height and width are equal
They are wider than they are tall
They are taller than they are wide
They are wider than they are tall
Epithelial cells have three distinct morphologies: squamous, cuboidal, and columnar. Squamous cells are wider than they are tall. In other words, they are flat.
Example Question #511 : Ap Biology
Which of the following best describes the specialized role of squamous cells, as compared to other epithelial cell morphologies?
Sensory reception
Mucus secretion
Line surfaces for simple diffusion
Secretion and absorption
Line surfaces for simple diffusion
Squamous cells are flat and wide. Both stratified and simple squamous epithelia will form smooth and flat surfaces that are specialized for the simple diffusion across the layer. Squamous cells are found in lung epithelia, the lining of blood vessels, and in the lining of body cavities.
Example Question #512 : Ap Biology
Which of the following is not true regarding the morphology of epithelial cuboidal cells?
Nuclei are elongated
The height and width are equal
Nuclei are round
They are cube-shaped
Nuclei are elongated
Cuboidal epithelial cells are one category of epithelial cell types. These cells have equal height and width; therefore, they are cube-shaped. They possess round nuclei and are typically involved in secretion and absorption. Cuboidal epithelial cells are located in the exocrine system.
Example Question #513 : Ap Biology
Which of the following is true regarding the morphology of epithelial columnar cells?
Nuclei are elongated
All of these
They are pillar-like
Height is greater than the width
All of these
Epithelial columnar cells represent one type of epithelial cell morphology. Columnar cells are taller than they are wide, have elongated nuclei, and are pillar-like. Epithelial columnar cells play a role in the digestive system and are important in sensory reception.
Example Question #14 : Types Of Cells And Tissues
Which of the following best describes where epithelial columnar cells are not found in the human body?
Lining of blood vessels
Ear
Tongue
Lining of the intestine
Lining of blood vessels
Epithelial columnar cells secrete digestive enzymes and absorb food in the digestive system and they also play a role in sensory reception. Epithelial columnar cells can be found in the tongue, ear, and the lining of the intestine.
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