BIOL251 HUMAN ANATOMY PHYSIOLOGY I W LAB
MODULE 2 EXAM 250 QUESTIONS AND ANSWERS
UPDATED 2026 VERIFIED ANSWERS ACTUAL UPDATED
PRACTICE QUESTIONS HIGH YIELD STUDY GUIDE
GRADED A+
What is a tissue? - CORRECT ANSWER -Ground of cells that work
together to perform one or more specialized functions
What does Intracellular refer to? - CORRECT ANSWER -The internal
environment of the cells, contained within the cellular membrane
What does Extracellular refer to? - CORRECT ANSWER -The
environment outside the cells, or outside the cellular membrane
What is the extracellular matrix? - CORRECT ANSWER -Large network of
proteins, molecules, and fluid that surrounds and gives structures to cells
What is Histology? - CORRECT ANSWER -The microscopic study of the
structure of tissues and their surrounding extracellular matrix
What are the four main types of tissue found in the body? - CORRECT
ANSWER -Epithelial, connective, muscle, nervous
Epithelial tissue function - CORRECT ANSWER -Covers exposed
surfaces, lines passageways/cavities, and can produce glandular secretions
Connective tissue function - CORRECT ANSWER -Supports and underlies
other structures and fills the internal space of the body
,Muscle tissue function - CORRECT ANSWER -Contracts to enable
movement
Nervous tissue function - CORRECT ANSWER -Carries electrical
impulses and translates information to control activities of the body
How does epithelial tissue serve as a layer of protection? - CORRECT
ANSWER -It forms barriers between internal and external environments,
composes the surface of the body, and lines hollow organs
What does epithelial tissue accomplish with lining cavities? - CORRECT
ANSWER -It decreases friction and provides lubrication of organs
How does epithelial tissue manage materials in the body by secretion? -
CORRECT ANSWER -Produces hormones, sweat, milk, digestive
enzymes, etc
How does epithelial tissue manage materials in the body by absorption? -
CORRECT ANSWER -Moving materials from the lumen to the
bloodstream such as nutrients in the GI tract
How does epithelial tissue manage materials in the body by excretion? -
CORRECT ANSWER -By removing materials and wastes from the body
What tissue functions to allow the body to diffuse particles through its cells? -
CORRECT ANSWER -Epithelial
, What are the 5 defining characteristics of epithelial tissue? - CORRECT
ANSWER -1. Exhibit polarity
2. Avascular
3. The basement membrane
4. Highly regenerative
5. Always connected to one another because of specialized cell junctions
Describe polarity in epithelial cells - CORRECT ANSWER -The cells have
unique surfaces, each with specialized features: apical, lateral, basal
What is the apical (free) surface of epithelial cells and what is its function -
CORRECT ANSWER -The surface facing the external environment or
inside of a lumen (opening)
Allows cells to secrete or absorb materials from the lumen
What is one location where epithelial cells lack an apical surface? -
CORRECT ANSWER -Endocrine glands
What are the specialized modifications on the apical surface of epitheal cells -
CORRECT ANSWER -Microvilli and Cilia
What is Microvilli and what is its function? - CORRECT ANSWER -
Finger-like extensions on the apical surface of most epithelial cells
Add extra surface area to cells allowing for additional secretions and absorption
What is cilia and what is its function? - CORRECT ANSWER -Longer
cytoplasmic extensions and have an internal structure that allows for their
movement
MODULE 2 EXAM 250 QUESTIONS AND ANSWERS
UPDATED 2026 VERIFIED ANSWERS ACTUAL UPDATED
PRACTICE QUESTIONS HIGH YIELD STUDY GUIDE
GRADED A+
What is a tissue? - CORRECT ANSWER -Ground of cells that work
together to perform one or more specialized functions
What does Intracellular refer to? - CORRECT ANSWER -The internal
environment of the cells, contained within the cellular membrane
What does Extracellular refer to? - CORRECT ANSWER -The
environment outside the cells, or outside the cellular membrane
What is the extracellular matrix? - CORRECT ANSWER -Large network of
proteins, molecules, and fluid that surrounds and gives structures to cells
What is Histology? - CORRECT ANSWER -The microscopic study of the
structure of tissues and their surrounding extracellular matrix
What are the four main types of tissue found in the body? - CORRECT
ANSWER -Epithelial, connective, muscle, nervous
Epithelial tissue function - CORRECT ANSWER -Covers exposed
surfaces, lines passageways/cavities, and can produce glandular secretions
Connective tissue function - CORRECT ANSWER -Supports and underlies
other structures and fills the internal space of the body
,Muscle tissue function - CORRECT ANSWER -Contracts to enable
movement
Nervous tissue function - CORRECT ANSWER -Carries electrical
impulses and translates information to control activities of the body
How does epithelial tissue serve as a layer of protection? - CORRECT
ANSWER -It forms barriers between internal and external environments,
composes the surface of the body, and lines hollow organs
What does epithelial tissue accomplish with lining cavities? - CORRECT
ANSWER -It decreases friction and provides lubrication of organs
How does epithelial tissue manage materials in the body by secretion? -
CORRECT ANSWER -Produces hormones, sweat, milk, digestive
enzymes, etc
How does epithelial tissue manage materials in the body by absorption? -
CORRECT ANSWER -Moving materials from the lumen to the
bloodstream such as nutrients in the GI tract
How does epithelial tissue manage materials in the body by excretion? -
CORRECT ANSWER -By removing materials and wastes from the body
What tissue functions to allow the body to diffuse particles through its cells? -
CORRECT ANSWER -Epithelial
, What are the 5 defining characteristics of epithelial tissue? - CORRECT
ANSWER -1. Exhibit polarity
2. Avascular
3. The basement membrane
4. Highly regenerative
5. Always connected to one another because of specialized cell junctions
Describe polarity in epithelial cells - CORRECT ANSWER -The cells have
unique surfaces, each with specialized features: apical, lateral, basal
What is the apical (free) surface of epithelial cells and what is its function -
CORRECT ANSWER -The surface facing the external environment or
inside of a lumen (opening)
Allows cells to secrete or absorb materials from the lumen
What is one location where epithelial cells lack an apical surface? -
CORRECT ANSWER -Endocrine glands
What are the specialized modifications on the apical surface of epitheal cells -
CORRECT ANSWER -Microvilli and Cilia
What is Microvilli and what is its function? - CORRECT ANSWER -
Finger-like extensions on the apical surface of most epithelial cells
Add extra surface area to cells allowing for additional secretions and absorption
What is cilia and what is its function? - CORRECT ANSWER -Longer
cytoplasmic extensions and have an internal structure that allows for their
movement
