Question 1

Which of the following best describes the function of tight junctions in epithelial tissue?

Accepted Answer

They prevent materials from passing between adjacent cells by forming a partial fusion of specific proteins on the lateral surface of the cell membrane.

Question 2

A tissue sample from the lining of the small intestine is examined under a microscope. The cells are tall and arranged in a single layer. Which type of epithelial tissue is this?

Accepted Answer

Simple columnar epithelium

Question 3

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

Accepted Answer

It contains a large amount of extracellular matrix.

Question 4

A patient has a genetic defect affecting desmosomes. Which of the following symptoms would most likely be observed?

Accepted Answer

Epithelial cells easily detach from each other under mechanical stress.

Question 5

Which of the following best explains why simple squamous epithelium is found in the alveoli of the lungs?

Accepted Answer

It allows for rapid diffusion of gases due to its thin, single-layered structure.

Question 6

Which connective tissue type is characterized by a matrix containing abundant collagen fibers and is found in tendons and ligaments?

Accepted Answer

Dense regular connective tissue

Question 7

A gland that secretes its product directly into the bloodstream is classified as:

Accepted Answer

Endocrine gland

Question 8

Which of the following best describes the function of gap junctions?

Accepted Answer

They allow ions and small molecules to pass directly from one cell to another, enabling electrical and metabolic coupling.

Question 9

Which of the following is a function of stratified squamous epithelium?

Accepted Answer

Protection against abrasion

Question 10

A biopsy reveals cells located in lacunae within a firm, flexible matrix. Which tissue is being examined?

Accepted Answer

Cartilage

Question 11

Which of the following best explains why blood is classified as a connective tissue?

Accepted Answer

It consists of cells suspended in a non-living extracellular matrix (plasma).

Question 12

Which type of muscle tissue is responsible for voluntary movements such as walking?

Accepted Answer

Skeletal muscle

Question 13

A patient is diagnosed with a disease that destroys the myelin sheath of neurons. Which tissue type is primarily affected?

Accepted Answer

Nervous tissue

Question 14

Which of the following best describes the main function of adipose tissue?

Accepted Answer

Storage of energy in the form of triglycerides

Question 15

Which of the following statements about the matrix of connective tissue is correct?

Accepted Answer

It contains fibers and ground substance, which determine the tissue's properties.

Question 16

A tissue sample shows multiple layers of cells with the apical layer appearing squished and flat. Which tissue type is this?

Accepted Answer

Stratified squamous epithelium

Question 17

Which of the following is a unique feature of cardiac muscle tissue?

Accepted Answer

It contains intercalated discs that allow synchronization of contractions.

Question 18

Which of the following best describes the function of the basement membrane in epithelial tissue?

Accepted Answer

It anchors the epithelium to the underlying connective tissue.

Question 19

A glandular epithelial cell that secretes mucus into a body cavity is classified as:

Accepted Answer

Unicellular exocrine gland

Question 20

Which of the following best explains why cartilage heals more slowly than bone after injury?

Accepted Answer

Cartilage is avascular, so nutrients and cells required for repair must diffuse through the matrix.

Introduction to Tissues: Histology, Cell Junctions, and Major Tissue Types

Study Guide - Practice Questions

Study Guide - Flashcards