Question 1

Which of the following is NOT a characteristic of epithelial tissue?

Accepted Answer

It contains abundant blood vessels within the tissue.

Question 2

A patient presents with a rapidly spreading skin cancer. Which property of cancerous epithelial cells most directly contributes to their ability to invade underlying tissues?

Accepted Answer

Failure to be contained by the basement membrane

Question 3

Which type of epithelial tissue is best suited for rapid diffusion and is found lining the alveoli of the lungs?

Accepted Answer

Simple squamous epithelium

Question 4

What is the main function of tight junctions in epithelial tissue?

Accepted Answer

Bind adjacent cells together to form continuous sheets

Question 5

Which of the following best describes the difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones into interstitial fluid; exocrine glands secrete products onto body surfaces or into cavities.

Question 6

A biopsy of a gland reveals cells accumulating secretory products until the entire cell ruptures. Which mode of secretion is this?

Accepted Answer

Holocrine

Question 7

Which of the following statements about the basement membrane is TRUE?

Accepted Answer

It reinforces the epithelial sheet and resists stretching and tearing.

Question 8

Which epithelial tissue type is found lining the bladder and is specialized to stretch as the organ fills?

Accepted Answer

Transitional epithelium

Question 9

A researcher is preparing a tissue sample for electron microscopy. Which of the following steps is unique to electron microscopy compared to light microscopy?

Accepted Answer

Staining with heavy metal coatings

Question 10

Which formula correctly represents the relationship between the number of cell layers ($$n) $$and the type of epithelial tissue?

Accepted Answer

$$n = 1$$ \rightarrow$$ simple epithelium; n$$ \geq 2$$ \rightarrow$$ stratified epithelium

Question 11

Which of the following is a function of simple cuboidal epithelium?

Accepted Answer

Absorption and secretion in kidney tubules

Question 12

Which cell type is responsible for producing mucin in the respiratory and intestinal tracts?

Accepted Answer

Goblet cells

Question 13

A multicellular exocrine gland with branched ducts and sac-like secretory units is classified as:

Accepted Answer

Compound alveolar

Question 14

Which of the following best explains why epithelial tissue must be supported by connective tissue?

Accepted Answer

Connective tissue provides nutrients via diffusion and reinforces the epithelial sheet.

Question 15

Which of the following scenarios best illustrates the function of ciliated pseudostratified columnar epithelium?

Accepted Answer

Movement of mucus out of the upper respiratory tract

Question 16

Which equation best represents the process of secretion by merocrine glands?

Accepted Answer

$$	ext{Secretion}_{	ext{merocrine}} = 	ext{Exocytosis}(	ext{Product})$$

Question 17

Which of the following is TRUE regarding stratified squamous epithelium?

Accepted Answer

It is the most widespread stratified epithelium and provides protection in high wear areas.

Question 18

Which of the following best describes the role of desmosomes in epithelial tissue?

Accepted Answer

They anchor adjacent cells together to resist mechanical stress.

Question 19

A tissue sample from the male urethra shows tall cells in the apical layer and cuboidal cells in the basal layer. What type of epithelium is this?

Accepted Answer

Stratified columnar epithelium

Question 20

Which of the following is a correct application of the concept of polarity in epithelial cells?

Accepted Answer

The basal surface attaches to the basal lamina, while the apical surface is exposed to the cavity or external environment.

Tissues: The Living Fabric – An Overview of Human Tissue Types

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