Question 1

Which of the following best describes the main function of epithelial tissue in the human body?

Accepted Answer

Protection, secretion, absorption, and filtration

Question 2

A tissue sample from the lining of the alveoli in the lungs is examined under a microscope. The cells appear flat and thin, arranged in a single layer. Which type of epithelial tissue is this?

Accepted Answer

Simple squamous epithelium

Question 3

Which of the following is a key difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands are ductless and release hormones into the blood; exocrine glands release products onto body surfaces or into body cavities via ducts.

Question 4

Which epithelial tissue type is best suited for absorption and secretion in kidney tubules?

Accepted Answer

Simple cuboidal epithelium

Question 5

A patient undergoes a Pap smear, which samples cells from the cervix. What type of epithelial tissue is primarily being examined?

Accepted Answer

Stratified squamous epithelium

Question 6

Which of the following formulas correctly represents the calculation for the surface area ($A$) of a simple cuboidal epithelial cell, assuming the cell is a cube with side length $l$?

Accepted Answer

$A = 6l^2$

Question 7

Which modified arrangement of epithelial tissue appears to have multiple layers but all cells are attached to the basement membrane?

Accepted Answer

Pseudostratified columnar epithelium

Question 8

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

Accepted Answer

Generation of action potentials

Question 9

A multicellular exocrine gland releases its product by the entire cell rupturing and dying. What is this method of secretion called?

Accepted Answer

Holocrine secretion

Question 10

Which type of epithelial membrane lines body cavities that open to the exterior, such as the digestive and respiratory tracts?

Accepted Answer

Mucous membrane

Question 11

Goblet cells are classified as which type of gland?

Accepted Answer

Unicellular exocrine gland

Question 12

Which of the following best explains why epithelial tissue has a high regenerative capacity?

Accepted Answer

It is exposed to frequent physical and chemical injury, requiring constant cell replacement via mitosis.

Question 13

Which of the following is the correct sequence of layers from the apical surface to the underlying connective tissue in epithelial tissue?

Accepted Answer

Apical surface → Basement membrane → Connective tissue

Question 14

Which type of epithelial tissue is found lining the urinary bladder and is specialized to stretch and recoil?

Accepted Answer

Transitional epithelium

Question 15

A multicellular exocrine gland releases its product by exocytosis without altering the secretory cell. Which method of secretion is this?

Accepted Answer

Merocrine

Question 16

Which of the following best describes the arrangement of cells in simple columnar epithelium?

Accepted Answer

Single layer of tall, rectangular cells

Question 17

Which formula would you use to calculate the volume ($V$) of a cuboidal epithelial cell with side length $l$?

Accepted Answer

$V = l^3$

Question 18

Which of the following is a characteristic of serous membranes?

Accepted Answer

They secrete lubricating fluid and line closed body cavities.

Question 19

Which type of epithelial tissue lines the trachea and contains cilia and goblet cells to trap and move particles?

Accepted Answer

Pseudostratified ciliated columnar epithelium

Question 20

A glandular epithelial cell releases its product by pinching off a portion of its cytoplasm. Which type of secretion is this?

Accepted Answer

Apocrine

Chapter 4: The Tissues – Part 1 (Epithelial Tissue, Membranes, and Glands)

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