Question 1

Which of the following is NOT one of the four basic tissue types found in the human body?

Accepted Answer

Cartilaginous tissue

Question 2

A researcher is preparing a tissue sample for electron microscopy. Which step is essential to enhance contrast, and what is a common artifact that may result?

Accepted Answer

Staining with heavy metal coatings; distortions in tissue appearance

Question 3

Which characteristic of epithelial tissue allows it to rapidly replace damaged cells, and what is required for this process?

Accepted Answer

Regeneration; adequate nutrients and cell division

Question 4

A patient has a tumor that has penetrated the basement membrane and invaded underlying tissues. What is the most likely consequence?

Accepted Answer

The tumor may metastasize and spread to other tissues

Question 5

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

Accepted Answer

Simple squamous epithelium; alveoli of lungs

Question 6

What is the main difference between endocrine and exocrine glands?

Accepted Answer

Endocrine glands secrete hormones into the blood; exocrine glands secrete products onto body surfaces or into cavities

Question 7

Which specialized contact is responsible for preventing substances from passing between epithelial cells?

Accepted Answer

Tight junctions

Question 8

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

Accepted Answer

Transitional epithelium

Question 9

Which formula best represents the relationship between the number of cell layers ($n$) and the type of epithelial tissue?

Accepted Answer

$n = 1$ \rightarrow$ simple epithelium; $n \geq 2$ \rightarrow$ stratified epithelium

Question 10

Which of the following is a function of epithelial tissue that is directly related to its polarity?

Accepted Answer

Absorption of nutrients at the apical surface

Question 11

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

Accepted Answer

Compound alveolar

Question 12

Which type of secretion involves the entire cell rupturing to release its product?

Accepted Answer

Holocrine

Question 13

Goblet cells are classified as which type of gland, and what is their main product?

Accepted Answer

Unicellular exocrine gland; mucin

Question 14

Which equation describes the diffusion of nutrients to avascular epithelial tissue from underlying connective tissue?

Accepted Answer

$J = -D \frac{dC}{dx}$, where $J$ is the flux, $D$ is the diffusion coefficient, and $\frac{dC}{dx}$ is the concentration gradient

Question 15

Which type of epithelial tissue lines the majority of the digestive tract and is specialized for absorption and secretion?

Accepted Answer

Simple columnar epithelium

Question 16

A biopsy from the skin reveals multiple layers of cells with the apical layer being flat and scale-like. What type of epithelium is this?

Accepted Answer

Stratified squamous epithelium

Question 17

Which of the following best explains why epithelial tissue is avascular but still receives nutrients?

Accepted Answer

Nutrients diffuse from underlying connective tissue

Question 18

Which type of epithelial tissue is most likely to be found in areas subject to friction and abrasion, such as the esophagus?

Accepted Answer

Stratified squamous epithelium

Question 19

Which of the following statements about pseudostratified columnar epithelium is correct?

Accepted Answer

It appears multilayered but is actually a single layer

Question 20

Which structure provides support and defines the boundary of epithelial tissue?

Accepted Answer

Basement membrane

Tissues: The Living Fabric – An Overview of Human Tissue Types

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