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 tumor that has penetrated the basement membrane and invaded underlying tissues. This is an example of:

Accepted Answer

Homeostatic imbalance leading to cancer

Question 3

Which type of epithelial tissue is best adapted for rapid diffusion and is found in the air sacs of the lungs and lining of blood vessels?

Accepted Answer

Simple squamous epithelium

Question 4

A gland that releases its product by exocytosis without losing any part of the cell is classified as:

Accepted Answer

Merocrine

Question 5

Which of the following best describes the function of microvilli on the apical surface of epithelial cells?

Accepted Answer

To increase surface area for absorption

Question 6

A tissue sample is observed to have multiple layers of cells, with the apical layer being flat and scale-like, and the deeper layers being cuboidal or columnar. This tissue is most likely:

Accepted Answer

Stratified squamous epithelium

Question 7

Which of the following statements about glandular epithelia is TRUE?

Accepted Answer

Unicellular exocrine glands, such as goblet cells, secrete mucin.

Question 8

A biopsy from the urinary bladder reveals an epithelium with the ability to change shape and stretch. Which type of epithelium is this?

Accepted Answer

Transitional epithelium

Question 9

Which of the following best explains why epithelial tissues are more likely to regenerate quickly after injury compared to connective tissues?

Accepted Answer

Epithelial cells are stimulated to divide by loss of polarity and broken lateral contacts.

Question 10

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

Accepted Answer

Compound alveolar

Question 11

Which of the following is a function of the basement membrane in epithelial tissue?

Accepted Answer

It resists stretching and tearing, reinforcing the epithelial sheet.

Question 12

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 the tissue with heavy metal coatings

Question 13

Which of the following best describes the difference between simple and stratified epithelia?

Accepted Answer

Simple epithelia consist of a single cell layer, while stratified epithelia have two or more layers.

Question 14

Which of the following is a correct pairing of epithelial tissue and its primary function?

Accepted Answer

Stratified squamous epithelium – protection from abrasion

Question 15

A patient with cystic fibrosis has thick mucus in the respiratory tract. Which epithelial structure is most likely malfunctioning, leading to impaired mucus movement?

Accepted Answer

Cilia

Question 16

Which of the following best describes the role of tight junctions in epithelial tissue?

Accepted Answer

They prevent substances from passing between adjacent cells.

Question 17

Which of the following is TRUE regarding pseudostratified columnar epithelium?

Accepted Answer

It appears stratified but is actually a single layer.

Question 18

A sweat gland that accumulates its product within the cell until the cell ruptures is classified as:

Accepted Answer

Holocrine

Question 19

Which of the following best explains why epithelial tissues are dependent on underlying connective tissues for nourishment?

Accepted Answer

Epithelial tissues are avascular and rely on diffusion from connective tissue.

Question 20

A gland that releases its secretion onto the skin surface through a duct is classified as:

Accepted Answer

Exocrine gland

Tissue: The Living Fabric – Overview and Microscopy 4A

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