#1
Which of the following is a characteristic feature of epithelial tissues?
Polarity
ExplanationEpithelial tissues exhibit polarity with distinct apical and basal surfaces.
#2
Which type of epithelial tissue is best suited for absorption and secretion?
Simple cuboidal epithelium
ExplanationSimple cuboidal epithelium is ideal for absorption and secretion due to its single layer of cube-shaped cells.
#3
In which location of the body would you find stratified squamous epithelium?
Surface of the skin
ExplanationStratified squamous epithelium forms the outermost layer of the skin, providing protection against mechanical and chemical damage.
#4
Which type of epithelial tissue is best suited for protection against abrasion?
Stratified squamous epithelium
ExplanationStratified squamous epithelium, with multiple layers of cells, provides effective protection against abrasion and mechanical stress.
#5
Which of the following junctions provides the strongest mechanical link between adjacent cells?
Desmosomes
ExplanationDesmosomes form strong mechanical connections between adjacent cells, providing structural integrity.
#6
Which epithelial tissue is found lining the urinary bladder?
Transitional epithelium
ExplanationTransitional epithelium lines the urinary bladder, allowing it to stretch and recoil as necessary.
#7
Which of the following epithelial tissues is found in the lining of the respiratory tract?
Pseudostratified columnar epithelium
ExplanationPseudostratified columnar epithelium lines the respiratory tract, providing protection and secreting mucus.
#8
What is the main function of microvilli in epithelial cells?
Increase surface area for absorption
ExplanationMicrovilli on the surface of epithelial cells increase surface area, enhancing absorption of nutrients and other substances.
#9
What is the function of tight junctions in epithelial tissues?
Create a barrier to prevent leakage
ExplanationTight junctions seal the intercellular space between epithelial cells, forming a barrier that prevents leakage of molecules and ions.
#10
Which type of junction allows the direct passage of ions and small molecules between adjacent cells?
Gap junctions
ExplanationGap junctions create channels between cells, allowing direct passage of ions and small molecules for intercellular communication.
#11
What is the function of hemidesmosomes in epithelial tissues?
Attach cells to the basement membrane
ExplanationHemidesmosomes anchor epithelial cells to the basement membrane, providing stability and support.