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

Question 2

Which component of the extracellular matrix is primarily responsible for providing tensile strength to connective tissues?

Accepted Answer

Collagen fibers

Question 3

A tissue sample shows cells that are long, cylindrical, multinucleated, and striated. Which primary tissue class does this sample most likely belong to?

Accepted Answer

Muscle tissue

Question 4

Which type of cell junction forms an impermeable seal between adjacent epithelial cells, preventing the passage of substances between them?

Accepted Answer

Tight junctions

Question 5

A gland that releases its product by exocytosis without losing any part of the cell is classified as which type of exocrine gland?

Accepted Answer

Merocrine

Question 6

Which of the following best explains why stratified squamous epithelium is found in the epidermis of the skin?

Accepted Answer

It provides protection against abrasion and dehydration

Question 7

Which of the following is a correct description of the function of goblet cells?

Accepted Answer

They secrete mucous to lubricate and protect epithelial surfaces

Question 8

A patient has a genetic defect affecting the production of glycosaminoglycans (GAGs) in connective tissue. Which property of the extracellular matrix is most likely to be impaired?

Accepted Answer

Water retention and resistance to compression

Question 9

Which of the following best distinguishes endocrine glands from exocrine glands?

Accepted Answer

Endocrine glands lack ducts and release products directly into the blood

Question 10

A histological slide shows a single layer of tall, narrow cells with microvilli and goblet cells. Where in the body is this tissue most likely found?

Accepted Answer

Lining of the small intestine

Question 11

Which of the following best describes the function of desmosomes in epithelial tissue?

Accepted Answer

They anchor adjacent cells together and resist mechanical stress

Question 12

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

Accepted Answer

Transitional epithelium

Question 13

Which of the following is a function of the basement membrane in epithelial tissues?

Accepted Answer

It anchors the epithelium to underlying connective tissue

Question 14

Which of the following best describes the secretion mechanism of holocrine glands?

Accepted Answer

Cells accumulate product and then rupture to release it

Question 15

A researcher is studying a tissue with loosely scattered cells, abundant extracellular matrix, and prominent collagen fibers. Which tissue type is being observed?

Accepted Answer

Connective tissue

Question 16

Which of the following equations best represents the relationship between the rate of diffusion ($$J$$), the surface area ($$A$$), the concentration gradient ($$\Delta C$$), and the thickness of the membrane ($$d) in $$simple squamous epithelium?

Accepted Answer

$$J = \frac{A \cdot \Delta C}{d}$$

Question 17

Which of the following best explains why non-keratinized stratified squamous epithelium is found lining the esophagus?

Accepted Answer

It provides protection against abrasion without preventing water loss

Question 18

A multicellular exocrine gland with a branched duct and secretory acini is classified as which type of gland?

Accepted Answer

Compound acinar

Question 19

Which of the following best describes the role of reticular fibers in connective tissue?

Accepted Answer

They form supportive networks in soft organs like lymph nodes

Question 20

A patient with a mutation affecting the production of integrins would most likely have defects in which of the following?

Accepted Answer

Anchoring cells to the extracellular matrix

Histology I: Introduction to Tissues and Epithelial Tissue

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