Q: Which equation correctly represents the calculation for total magnification in light microscopy?

$\text{Total Magnification} = \text{Objective Lens Magnification} \times \text{Ocular Lens Magnification}$

Question 1

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

Accepted Answer

It is supported by connective tissue

Question 2

A researcher is examining a tissue sample under a transmission electron microscope (TEM). What is the primary advantage of using TEM for histological studies?

Accepted Answer

It stains with heavy metal salts to enhance contrast

Question 3

Which function is most associated with simple squamous epithelium in the alveoli of the lungs?

Accepted Answer

Rapid diffusion of gases

Question 4

A tissue sample is described as having multiple layers of flattened cells. Which type of epithelial tissue is this?

Accepted Answer

Stratified squamous epithelium

Question 5

Which of the following best describes the basement membrane in epithelial tissues?

Accepted Answer

A network of collagen fibers that supports the epithelium

Question 6

Which equation correctly represents the calculation for total magnification in light microscopy?

Accepted Answer

$	ext{Total Magnification} = 	ext{Objective Lens Magnification} 	imes 	ext{Ocular Lens Magnification}$

Question 7

A pathologist observes that a gland is composed of a single layer of cube-shaped cells. Which type of epithelial tissue is present?

Accepted Answer

Simple cuboidal epithelium

Question 8

Which of the following is a function of microvilli found on the apical surface of epithelial cells?

Accepted Answer

Increase surface area for absorption

Question 9

Which statement about stratified epithelial tissues is correct?

Accepted Answer

They regenerate from cells in the basal layer

Question 10

A sample of tissue is described as having cells of varying heights, with nuclei at different levels, but all cells touch the basement membrane. What type of epithelium is this?

Accepted Answer

Pseudostratified columnar epithelium

Question 11

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

Accepted Answer

Production of blood cells

Question 12

Which type of microscopy would be best for viewing the 3D surface structure of an unsectioned tissue sample?

Accepted Answer

Scanning electron microscopy (SEM)

Question 13

Which of the following statements about connective tissue support for epithelial sheets is correct?

Accepted Answer

All epithelial sheets are supported by connective tissue

Question 14

A patient has damage to the serous membranes lining the ventral body cavity. Which type of epithelium is most likely affected?

Accepted Answer

Simple squamous epithelium (mesothelium)

Question 15

Which of the following best describes the function of goblet cells in simple columnar epithelium?

Accepted Answer

Secretion of lubricating mucus

Question 16

Which equation would you use to determine the number of layers in a stratified epithelium if you know the total thickness and the average height of a cell?

Accepted Answer

$	ext{Number of layers} = \frac{	ext{Total thickness}}{	ext{Average cell height}}$

Question 17

Which of the following is a property of avascular tissues?

Accepted Answer

They receive nutrients by diffusion from underlying connective tissue

Question 18

Which type of epithelial tissue is most likely to be found lining the urinary bladder, allowing it to stretch?

Accepted Answer

Transitional epithelium

Question 19

A biopsy reveals a tissue with cells that are taller than they are wide, arranged in a single layer, and specialized for absorption. Which type of epithelium is this?

Accepted Answer

Simple columnar epithelium

Question 20

Which of the following is a correct sequence for preparing tissue for microscopic examination?

Accepted Answer

Fixation, sectioning, staining

Histology: Tissues – Epithelial Tissue Overview

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