Question 1

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

Accepted Answer

Contains abundant extracellular matrix

Question 2

A patient suffers a severe burn that destroys the epidermis. Which property of epithelial tissue is most critical for the skin to heal over time?

Accepted Answer

Regeneration

Question 3

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

Accepted Answer

Simple squamous epithelium; lining of air sacs in the lungs

Question 4

A gland that releases its secretion by exocytosis without losing cellular material is classified as which type of gland?

Accepted Answer

Merocrine gland

Question 5

Which of the following best describes the function of connective tissue in the body?

Accepted Answer

Supports, protects, and binds other tissues

Question 6

A biopsy reveals a tissue with a single layer of tall, rectangular cells. Which type of epithelium is this, and what is a likely function?

Accepted Answer

Simple columnar epithelium; absorption and secretion

Question 7

Which of the following equations correctly represents the relationship between the surface area ($$A) $$and volume ($$V) of a $$cube-shaped epithelial cell with side length $$l$$?

Accepted Answer

$$A = 6l^2$, V$$ = $$l^3$$

Question 8

A tumor develops from epithelial cells lining the colon. Which of the following statements best explains why most cancers originate in epithelial tissues?

Accepted Answer

Epithelial tissues are exposed to environmental insults and have high rates of cell division

Question 9

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

Accepted Answer

Exocrine glands secrete products onto body surfaces or into cavities; endocrine glands secrete hormones directly into the bloodstream

Question 10

A histological slide shows a tissue with multiple layers of flat cells at the surface and cuboidal cells at the base. What is the most likely function of this tissue?

Accepted Answer

Protection from abrasion

Question 11

Which connective tissue type is characterized by a loose arrangement of fibers, abundant ground substance, and is found under epithelia throughout the body?

Accepted Answer

Areolar connective tissue

Question 12

A patient with a genetic defect in collagen synthesis would most likely have problems with which tissue type?

Accepted Answer

Connective tissue

Question 13

Which of the following best explains why epithelial tissues are avascular but still able to receive nutrients?

Accepted Answer

Nutrients diffuse from underlying connective tissue

Question 14

A glandular cell releases its entire contents, including cell fragments, into a duct. Which mode of secretion is this?

Accepted Answer

Holocrine

Question 15

Which of the following is a real-life example of a unicellular exocrine gland?

Accepted Answer

Goblet cell in the intestinal lining

Question 16

A tissue sample is taken from the wall of the urinary bladder and shows cells that can change shape and appear both squamous and cuboidal. What is this tissue and its function?

Accepted Answer

Transitional epithelium; allows stretching

Question 17

Which connective tissue type is best suited to resist tension in one direction, and where is it commonly found?

Accepted Answer

Dense regular connective tissue; tendons and ligaments

Question 18

A patient with a deficiency in elastic fibers would most likely experience problems in which of the following tissues?

Accepted Answer

Elastic connective tissue

Question 19

Which of the following best describes the function of simple cuboidal epithelium in the kidney tubules?

Accepted Answer

Absorption and secretion

Question 20

A tissue sample from the trachea shows cells of varying heights with nuclei at different levels, all attached to the basement membrane. What is this tissue and its function?

Accepted Answer

Pseudostratified columnar epithelium; secretion and movement of mucus

Chapter 4: Tissue – The Living Fabric (Overview and Epithelial Tissue)

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