Q: Which of the following equations best represents the relationship between the number of cell layers ($$n) $$and the classification of epithelium?

$$n = 1$$ \rightarrow \text{Simple epithelium}$

Question 1

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

Accepted Answer

Rapid diffusion of gases due to thin, flat cells

Question 2

A tissue sample from the inner lining of the urinary bladder shows cells that can change shape and appear to have multiple layers. Which type of epithelium is this?

Accepted Answer

Transitional epithelium

Question 3

Which of the following statements about the basement membrane is correct?

Accepted Answer

It consists of both the basal lamina and reticular lamina

Question 4

A gland that secretes its product directly into the bloodstream without using a duct is classified as:

Accepted Answer

Endocrine gland

Question 5

Which embryonic germ layer gives rise to most connective tissues and muscle in the body?

Accepted Answer

Mesoderm

Question 6

A patient has a genetic defect affecting the production of collagen fibers. Which tissue type would be most directly affected?

Accepted Answer

Connective tissue

Question 7

Which of the following best explains why epithelial tissue is avascular?

Accepted Answer

Epithelial cells are too tightly packed for blood vessels to penetrate

Question 8

Which type of connective tissue is characterized by a loose arrangement of fibers and serves as a packing material in the body?

Accepted Answer

Areolar connective tissue

Question 9

A biopsy reveals a single layer of cube-shaped cells with centrally located nuclei lining a duct. What is the most likely tissue type?

Accepted Answer

Simple cuboidal epithelium

Question 10

Which of the following is a function of glandular epithelium?

Accepted Answer

Secretion of hormones and enzymes

Question 11

A tissue sample from the trachea shows cells with cilia and nuclei at different levels, but all cells touch the basement membrane. What is the most likely tissue type?

Accepted Answer

Pseudostratified ciliated columnar epithelium

Question 12

Which of the following best describes the main difference between dense regular and dense irregular connective tissue?

Accepted Answer

Dense regular has fibers arranged in parallel, while dense irregular has fibers arranged randomly

Question 13

Which of the following equations best represents the relationship between the number of cell layers ($$n) $$and the classification of epithelium?

Accepted Answer

$$n = 1$$ ightarrow 	ext{Simple epithelium}$

Question 14

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

Accepted Answer

Impulse conduction

Question 15

A patient with a burn injury loses the outermost layer of skin. Which type of membrane has been damaged?

Accepted Answer

Cutaneous membrane

Question 16

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

Accepted Answer

It receives nutrients by diffusion and undergoes rapid cell division

Question 17

Which of the following best describes the function of reticular connective tissue?

Accepted Answer

Forms a soft internal framework for lymphoid organs

Question 18

A histology slide shows multiple layers of flat cells at the surface, with deeper layers appearing cuboidal or columnar. What is the most likely tissue type?

Accepted Answer

Stratified squamous epithelium

Question 19

Which of the following best describes the main function of elastic connective tissue in the walls of large arteries?

Accepted Answer

Allows the vessel to stretch and recoil

Question 20

A researcher is studying the diffusion of nutrients to avascular tissues. Which equation best represents the rate of diffusion ($$J) $$across a membrane of thickness $$d$$ and concentration difference $$\Delta C$$, given the diffusion coefficient $$D$$?

Accepted Answer

$$J = D \frac{\Delta C}{d}$$

Epithelial and Connective Tissues: Structure, Function, and Classification

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