2026) – Respiratory System and Epithelial Tissue Study Guide
Introduction:
This document provides the complete set of BIOD 151 Module 7 lab
questions with verified correct answers for the 2025 academic year.
It covers two major sections: epithelial tissue classification and
structure, followed by an extensive review of the respiratory
system—its anatomy, physiology, and related pathologies. Topics
include types of epithelial cells, tissue functions, gas exchange,
respiratory volumes, breathing mechanisms, and effects of diseases
such as COPD, asthma, and emphysema. The material serves as a
comprehensive reference for exam preparation and lab review.
Exam Questions and Answers
What are the ways epithelial tissue is classified? --- correct answer
---Epithelial tissue is classified by cell type, cell shape, and cell
arrangement.
Which of the following statements is FALSE regarding the structure
of epithelial tissue? --- correct answer ---Epithelial tissue is
composed of a small cellular content with a large amount of matrix.
Which of the above images is an example of simple cuboidal
epithelial tissue? --- correct answer ---A because it's made up of
one single layer of cube shaped or round cells.
,Give the definition of what a tissue is. --- correct answer ---Tissue
are made up of similar cells that group together to form a tissue
that will perform similar function.
Which of the following statements is FALSE regarding the four
primary classes of tissue in the body? --- correct answer ---
Connective tissue functions in absorption.
Tissue matrix or extracellular material, is made up of two
components. What are these two components? --- correct answer --
-Tissue matrix or extracellular material are made up of ground
substance and protein fibers.
Which of the following germ layers gives rise to epithelial tissue? --
- correct answer ---a.Ectoderm
b. Mesoderm
c. Endoderm
d. a. and c.
e. b. and c.
f. All of the above
The answer is a and c
What type of epithelial tissue do you see in the above image?
Explain how you know what type it is. --- correct answer ---This is
, a pseudostratified epitheliual tissue. All cells touch the basement
membrane , but not all cells reach the apical surface or free surface.
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
Pseudostratified epithelium --- correct answer ---epithelium =
alveoli
Simple cuboidal epithelium = kidney tubules
Simple columnar epithelium = small and large intestines
Pseudostratified epithelium = male reproductive tract
Simple squamous epithelium
Simple cuboidal epithelium
Simple columnar epithelium
secretes mucus in the digestive tract
Pseudostratified epithelium locomotion --- correct answer ---
Simple squamous epithelium = transcellular transport
Simple cuboidal epithelium = secretes mucus in the bronchioles
Simple columnar epithelium = secretes mucus in the digestive tract
Pseudostratified epithelium = locomotion