Question 1

Which of the following best describes the main function of simple squamous epithelium in the alveoli of the lungs?

Accepted Answer

Facilitating rapid diffusion of respiratory gases

Question 2

A tissue sample from the lining of the urinary bladder shows cells that change shape from cuboidal to squamous when stretched. What type of epithelium is this?

Accepted Answer

Transitional epithelium

Question 3

Which of the following statements about epithelial tissue is CORRECT?

Accepted Answer

Epithelial tissue relies on diffusion from underlying capillaries for nutrients.

Question 4

Which type of gland releases its secretion by exocytosis without losing any part of the cell?

Accepted Answer

Merocrine gland

Question 5

A patient has a genetic defect affecting the formation of desmosomes in epithelial tissue. Which of the following symptoms is most likely to occur?

Accepted Answer

Reduced ability of epithelial cells to adhere to each other, leading to tissue fragility

Question 6

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

Accepted Answer

Simple epithelium consists of a single layer of cells; stratified consists of multiple layers.

Question 7

Which of the following is a function of goblet cells found in the intestinal lining?

Accepted Answer

Secretion of mucus for protection and lubrication

Question 8

A biopsy from a patient’s sweat gland duct reveals two layers of cube-shaped cells. Which type of epithelium is present?

Accepted Answer

Stratified cuboidal epithelium

Question 9

Which of the following best explains why the skin’s outer layer is composed of stratified squamous epithelium?

Accepted Answer

It provides a thick, protective barrier against abrasion.

Question 10

Which of the following is TRUE regarding endocrine glands?

Accepted Answer

They are ductless and secrete hormones directly into the blood or lymph.

Question 11

A researcher is studying a tissue with a single layer of tall, closely packed cells with nuclei near the base and microvilli on the apical surface. Where is this tissue most likely found?

Accepted Answer

Lining of the small intestine

Question 12

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

Accepted Answer

Move mucus and trapped particles out of the respiratory tract

Question 13

Which of the following is a distinguishing feature of pseudostratified ciliated columnar epithelium?

Accepted Answer

Cells appear to be in multiple layers due to varying nuclear positions, but all cells touch the basement membrane

Question 14

Which of the following best describes the mode of secretion for holocrine glands?

Accepted Answer

Secretion by rupture of the entire cell, releasing product and cell fragments

Question 15

A multicellular exocrine gland with branched ducts and flask-shaped secretory units is classified as:

Accepted Answer

Compound alveolar

Question 16

Which of the following equations best represents the relationship between the surface area ($$A) $$and the number of microvilli ($$n) on an $$epithelial cell, if each microvillus has an average surface area $$a$$?

Accepted Answer

$$A = n 	imes a$$

Question 17

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

Accepted Answer

Contraction to produce movement

Question 18

A patient with chronic bronchitis has impaired ciliary function in the respiratory tract. Which of the following is a likely consequence?

Accepted Answer

Reduced removal of mucus and particulates from the airways

Question 19

Which of the following best describes the basement membrane in epithelial tissue?

Accepted Answer

A glycoprotein-rich layer that anchors epithelial cells to underlying connective tissue

Question 20

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

Accepted Answer

Preventing leakage of digestive enzymes between intestinal epithelial cells

Tissue: The Living Fabric – Epithelial Tissue Study Guide

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