Question 1

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

Accepted Answer

They prevent the passage of water and solutes between cells.

Question 2

A patient presents with a skin disorder that results in frequent blistering due to weak cell-to-cell adhesion. Which intercellular connection is most likely compromised?

Accepted Answer

Desmosomes

Question 3

Which characteristic of epithelial tissue explains why it heals quickly after injury?

Accepted Answer

Regeneration due to rapid cell division

Question 4

Which type of epithelial tissue is best suited for absorption and diffusion, and where is it commonly found?

Accepted Answer

Simple squamous epithelium; alveoli of the lungs

Question 5

Which mode of glandular secretion involves the cell releasing its product by exocytosis without losing any part of the cell?

Accepted Answer

Merocrine secretion

Question 6

A gland that releases its product by shedding the apical portion of the cell is classified as which type?

Accepted Answer

Apocrine

Question 7

Which of the following is TRUE regarding endocrine glands?

Accepted Answer

They release hormones directly into the bloodstream.

Question 8

Which epithelial tissue is specialized to tolerate repeated cycles of stretching and is found in the urinary bladder?

Accepted Answer

Transitional epithelium

Question 9

A multicellular gland with a divided duct and tube-shaped secretory portions is classified as:

Accepted Answer

Compound tubular gland

Question 10

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

Accepted Answer

Increase absorption or secretion

Question 11

Which type of epithelial tissue is found lining the ducts of sweat glands and mammary glands, and is relatively rare?

Accepted Answer

Stratified cuboidal epithelium

Question 12

Which of the following is a unicellular exocrine gland found in the intestinal lining?

Accepted Answer

Goblet cell

Question 13

A patient has a disorder affecting the basal lamina of the basement membrane. Which function is most likely impaired?

Accepted Answer

Selective filtration between epithelium and underlying tissue

Question 14

Which of the following equations best represents the rate of epithelial cell regeneration, given that epithelial cells divide faster than other tissues? Let $$N be $$the number of cells, $$r$$ the rate of division, and $$t$$ time.

Accepted Answer

$$N = N_0$ e$$^{rt}$$

Question 15

Which type of epithelial tissue is most likely to be found lining the pharynx, anus, and urethra?

Accepted Answer

Stratified columnar epithelium

Question 16

Which of the following best explains why stratified squamous epithelium is found in areas subject to mechanical stress?

Accepted Answer

Keratin adds strength and water resistance.

Question 17

Which mode of secretion involves the entire cell bursting and dying to release its product?

Accepted Answer

Holocrine secretion

Question 18

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

Accepted Answer

Store calcium and fat

Question 19

Which intercellular connection is responsible for coordinating heart muscle contraction?

Accepted Answer

Gap junctions

Question 20

A gland that produces both watery and mucous secretions is classified as:

Accepted Answer

Mixed exocrine gland

The Tissue Level of Organization: Epithelial Tissue

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