Question 1

Which of the following best describes the main function of epithelial tissue in the human body?

Accepted Answer

Covers surfaces and lines insides of organs and body cavities

Question 2

A patient suffers from severe dehydration, which impairs the diffusion of nutrients to certain tissues. Which tissue type is most likely to be affected due to its lack of blood vessels?

Accepted Answer

Epithelial tissue

Question 3

Which intercellular junction is primarily responsible for preventing the passage of substances between adjacent epithelial cells, thus maintaining the integrity of the tissue barrier?

Accepted Answer

Tight junction

Question 4

A researcher observes cells with a single layer, all attached to the basement membrane, and nuclei appearing at different heights, giving a stratified appearance. What type of epithelial tissue is this?

Accepted Answer

Pseudostratified columnar epithelium

Question 5

Which of the following is a correct structural feature of the basement membrane in epithelial tissue?

Accepted Answer

It contains two basal laminae and a reticular lamina

Question 6

Which type of connective tissue fiber is most abundant in the human body and provides high tensile strength?

Accepted Answer

Collagen fibers

Question 7

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

Accepted Answer

Compound acinar gland

Question 8

Which of the following equations best represents the relationship between the number of cells ($$N$$), the number of tissues ($$T$$), and the average number of cells per tissue ($$C_{avg}) in $$the human body, given approximately 75 trillion cells and four basic tissue types?

Accepted Answer

$$N = T 	imes C_{avg}$$

Question 9

Which connective tissue type is primarily responsible for storing energy and reducing heat loss through the skin?

Accepted Answer

Adipose tissue

Question 10

A patient presents with a genetic defect in cadherin proteins. Which intercellular junction would be most affected, and what is a likely consequence?

Accepted Answer

Desmosome; reduced tissue stability under mechanical stress

Question 11

Which of the following best explains why epithelial tissue is highly regenerative compared to other tissue types?

Accepted Answer

Epithelial cells are frequently damaged and replaced rapidly

Question 12

Which type of muscle tissue is found in the walls of most internal organs and is responsible for involuntary movements such as peristalsis?

Accepted Answer

Smooth muscle

Question 13

Which of the following is a function of reticular fibers in connective tissue?

Accepted Answer

Form a meshwork that acts as packing material in organs with abundant spaces

Question 14

A gland that releases its secretions by cell rupture and subsequent cell replacement is classified as which type of exocrine gland?

Accepted Answer

Holocrine gland

Question 15

Which of the following best describes the composition of ground substance in connective tissue?

Accepted Answer

A mixture of proteins and carbohydrates with variable amounts of salts and water

Question 16

Which tissue type contains cells called chondrocytes embedded in a gel-like extracellular matrix and is found in the nose, trachea, and ends of long bones?

Accepted Answer

Hyaline cartilage

Question 17

A patient with a deficiency in fibronectin would most likely experience problems in which aspect of connective tissue function?

Accepted Answer

Binding collagen fibers and ground substance together

Question 18

Which of the following best describes the function of neurons in nervous tissue?

Accepted Answer

Initiate and conduct electrical activity throughout the body

Question 19

Which equation correctly represents the calculation of total protein fiber content ($$F_{total}) in $$connective tissue, given the number of collagen fibers ($$C$$), elastic fibers ($$E$$), and reticular fibers ($$R$$)?

Accepted Answer

$$F_{total} = C + E + R$$

Question 20

Which of the following is a characteristic feature of cardiac muscle tissue that distinguishes it from skeletal muscle tissue?

Accepted Answer

Cells are branched, Y-shaped, and attached end-to-end by strong junctions

Tissue Level of Organization: Structure and Function of Human Tissues

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