Question 1

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

Accepted Answer

Absorption and diffusion of gases

Question 2

A biopsy sample from the lining of the esophagus reveals multiple layers of flat cells. Which type of epithelial tissue is this?

Accepted Answer

Stratified squamous epithelium

Question 3

Which intercellular junction is primarily responsible for preventing the passage of water and solutes between epithelial cells in the intestinal tract?

Accepted Answer

Tight (occluding) junctions

Question 4

Which of the following is a characteristic of all epithelial tissues?

Accepted Answer

They have a basement membrane

Question 5

A gland that releases its product by the entire cell rupturing and dying is classified as which type of exocrine gland?

Accepted Answer

Holocrine

Question 6

Which of the following best explains why epithelial tissues heal rapidly after injury?

Accepted Answer

They contain stem cells that divide rapidly

Question 7

Which of the following cell types is responsible for maintaining bone tissue?

Accepted Answer

Osteocytes

Question 8

A patient with a genetic defect in connexon proteins would most likely have impaired function in which type of cell junction?

Accepted Answer

Gap junctions

Question 9

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

Accepted Answer

Endocrine glands secrete hormones into interstitial fluid; exocrine glands secrete into ducts

Question 10

Which of the following connective tissue cells is primarily responsible for the breakdown of bone matrix?

Accepted Answer

Osteoclasts

Question 11

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 12

Which of the following best describes the function of mast cells in connective tissue?

Accepted Answer

Initiation of inflammation by releasing histamine

Question 13

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

Accepted Answer

Guides cell migration during tissue repair

Question 14

Which of the following best describes the arrangement of cells in pseudostratified columnar epithelium?

Accepted Answer

All cells contact the basement membrane, but not all reach the apical surface

Question 15

Which of the following is a key difference between epithelial and connective tissues?

Accepted Answer

Connective tissues have few cells and abundant extracellular matrix

Question 16

Which type of exocrine gland secretion involves the release of only the product by exocytosis, without loss of cytoplasm?

Accepted Answer

Merocrine

Question 17

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

Accepted Answer

Prevent separation during stretching and twisting

Question 18

A patient presents with a genetic disorder affecting cell adhesion molecules (CAMs). Which tissue function is most likely to be impaired?

Accepted Answer

Binding of epithelial cells together

Question 19

Which of the following best describes the role of microvilli on the apical surface of epithelial cells in the small intestine?

Accepted Answer

Increase surface area for absorption

Question 20

Which of the following is a function of macrophages in connective tissue?

Accepted Answer

Phagocytize foreign and injured cells

Tissue Level of Organization: Epithelial and Connective Tissues

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