Q: Which equation would you use to estimate the rate of diffusion ($$R) $$across a simple squamous epithelium, given permeability ($$P$$), surface area ($$A$$), and concentration difference ($$\Delta C$$)?

$$R = P \times A \times \Delta C$$

Question 1

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

Accepted Answer

Contraction

Question 2

A tissue sample is prepared for light microscopy. Which sequence of steps is correct for optimal viewing?

Accepted Answer

Fixed, sectioned, stained

Question 3

Which characteristic of epithelial tissue allows it to rapidly replace damaged cells?

Accepted Answer

Regeneration

Question 4

A patient presents with a tumor that has penetrated the basement membrane and invaded underlying tissues. This is an example of:

Accepted Answer

Homeostatic imbalance leading to cancer

Question 5

Which type of epithelial tissue is best suited for rapid diffusion and is found in the lungs and kidneys?

Accepted Answer

Simple squamous epithelium

Question 6

What is the main difference between endocrine and exocrine glands?

Accepted Answer

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

Question 7

Which of the following best describes the structure of pseudostratified columnar epithelium?

Accepted Answer

Single layer of cells with varying heights, appearing multilayered

Question 8

A gland that accumulates its product until the cell ruptures is classified as:

Accepted Answer

Holocrine

Question 9

Which type of epithelial tissue lines the bladder and is specialized to stretch?

Accepted Answer

Transitional epithelium

Question 10

Which of the following is a correct pairing of tissue type and function?

Accepted Answer

Connective tissue: support

Question 11

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

Accepted Answer

Compound alveolar

Question 12

Which specialized contact prevents substances from passing between adjacent epithelial cells?

Accepted Answer

Tight junction

Question 13

Which formula best represents the calculation of total surface area ($$A) of $$epithelial cells covering a cuboidal gland with $$n$$ cells, each with surface area $$a$$?

Accepted Answer

$$A = n 	imes a$$

Question 14

A patient with chronic friction damage to the skin is most likely to have increased regeneration in which tissue type?

Accepted Answer

Stratified squamous epithelium

Question 15

Which of the following statements about epithelial tissue is TRUE?

Accepted Answer

Epithelial tissue is avascular but innervated

Question 16

Which cell type is responsible for producing mucus in the respiratory and intestinal tracts?

Accepted Answer

Goblet cell

Question 17

Which equation would you use to estimate the rate of diffusion ($$R) $$across a simple squamous epithelium, given permeability ($$P$$), surface area ($$A$$), and concentration difference ($$\Delta C$$)?

Accepted Answer

$$R = P 	imes A 	imes \Delta C$$

Question 18

Which of the following is a correct description of the basement membrane?

Accepted Answer

It consists of basal and reticular lamina and reinforces the epithelial sheet

Question 19

Which type of multicellular exocrine gland has both tubular and alveolar secretory units?

Accepted Answer

Compound tubuloalveolar gland

Question 20

A researcher observes cells with microvilli on their apical surface, arranged in a single layer. Which type of epithelium is most likely being observed?

Accepted Answer

Simple columnar epithelium

Tissue: The Living Fabric – Overview and Microscopy

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