©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
JMU BIO 270 Exam 1 Questions and
Answers
define homeostasis - ANSWER✔✔-the maintenance of a relatively stable environment
function depends on - ANSWER✔✔-structure
extracellular fluid - ANSWER✔✔-fluid environment in which cells live
What are the two types of extracellular fluid? - ANSWER✔✔-plasma and interstitial fluid
define intracellular fluid - ANSWER✔✔-fluid within the cell
What are the main functions of the cell? - ANSWER✔✔--obtain oxygen and nutrients from environment
-perform energy-generating chemical reactions
-eliminate waste
-synthesize proteins
-moving materials through cell
-responding to the environment
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, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
-reproducing
What are the main cell nutrients? - ANSWER✔✔--carbs
-fats
-protein
What are the levels of organization? - ANSWER✔✔-chemical, cellular, tissue, organ, system, body system
level
96-99% of all cells are made of what? - ANSWER✔✔-oxygen, carbon, hydrogen, nitrogen
define cell - ANSWER✔✔-fundamental unit of structure and function
What are the four main types of primary tissue? - ANSWER✔✔--muscle
-nervous
-epithelial
-connective
What is important about muscle tissue? - ANSWER✔✔--specialized for contracting
-generate tension to produce movement
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, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
What are the three types of muscle tissue? - ANSWER✔✔-skeletal, cardiac, smooth
What does skeletal muscle do? - ANSWER✔✔-moves bones
What does cardiac muscle do? - ANSWER✔✔-pumps blood throughout the body
What is unique about smooth muscle? - ANSWER✔✔-in all organs that are hallow
What are unique of nervous tissue? - ANSWER✔✔--initializing and transmitting electrical signals over
long distances
-communication, coordination, and control
Where can nervous tissue be found? - ANSWER✔✔-brain, spinal cord, peripheral nerves, and special
sense
What characterizes epithelial tissue? - ANSWER✔✔-specialized for exchanging material between cells
and environment
What are the two structures of epithelial tissue? - ANSWER✔✔-epithelial sheets and secretory glands
What are the three functions of epithelial tissue? - ANSWER✔✔-protection, absorption, secretion
How does the epithelial tissue protect? - ANSWER✔✔-boundaries from external environment (skin and
body openings)
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, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
Where does the epithelial tissue absorb? - ANSWER✔✔--large intestine
-small intestine
Where does the epithelial tissue secrete? - ANSWER✔✔--exocrine glands
-endocrine glands
What are glands? - ANSWER✔✔-specialized epithelium for secretion
How are glands formed? - ANSWER✔✔-invaginating pockets during embryogenesis
What are the two types of glands? - ANSWER✔✔-exocrine and endocrine
What are examples of exocrine? - ANSWER✔✔-ducts - exit body
What are examples of endocrine? - ANSWER✔✔-no ducts - use blood vessels
What are connective tissue? - ANSWER✔✔-few cells surrounded by abundance of extracellular material
What does connective tissue do? - ANSWER✔✔--connects, supports, and anchors various body parts
-transportation & immunity
-energy and storage
Page 4/45
FIRST PUBLISH OCTOBER 2024
JMU BIO 270 Exam 1 Questions and
Answers
define homeostasis - ANSWER✔✔-the maintenance of a relatively stable environment
function depends on - ANSWER✔✔-structure
extracellular fluid - ANSWER✔✔-fluid environment in which cells live
What are the two types of extracellular fluid? - ANSWER✔✔-plasma and interstitial fluid
define intracellular fluid - ANSWER✔✔-fluid within the cell
What are the main functions of the cell? - ANSWER✔✔--obtain oxygen and nutrients from environment
-perform energy-generating chemical reactions
-eliminate waste
-synthesize proteins
-moving materials through cell
-responding to the environment
Page 1/45
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
-reproducing
What are the main cell nutrients? - ANSWER✔✔--carbs
-fats
-protein
What are the levels of organization? - ANSWER✔✔-chemical, cellular, tissue, organ, system, body system
level
96-99% of all cells are made of what? - ANSWER✔✔-oxygen, carbon, hydrogen, nitrogen
define cell - ANSWER✔✔-fundamental unit of structure and function
What are the four main types of primary tissue? - ANSWER✔✔--muscle
-nervous
-epithelial
-connective
What is important about muscle tissue? - ANSWER✔✔--specialized for contracting
-generate tension to produce movement
Page 2/45
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
What are the three types of muscle tissue? - ANSWER✔✔-skeletal, cardiac, smooth
What does skeletal muscle do? - ANSWER✔✔-moves bones
What does cardiac muscle do? - ANSWER✔✔-pumps blood throughout the body
What is unique about smooth muscle? - ANSWER✔✔-in all organs that are hallow
What are unique of nervous tissue? - ANSWER✔✔--initializing and transmitting electrical signals over
long distances
-communication, coordination, and control
Where can nervous tissue be found? - ANSWER✔✔-brain, spinal cord, peripheral nerves, and special
sense
What characterizes epithelial tissue? - ANSWER✔✔-specialized for exchanging material between cells
and environment
What are the two structures of epithelial tissue? - ANSWER✔✔-epithelial sheets and secretory glands
What are the three functions of epithelial tissue? - ANSWER✔✔-protection, absorption, secretion
How does the epithelial tissue protect? - ANSWER✔✔-boundaries from external environment (skin and
body openings)
Page 3/45
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
Where does the epithelial tissue absorb? - ANSWER✔✔--large intestine
-small intestine
Where does the epithelial tissue secrete? - ANSWER✔✔--exocrine glands
-endocrine glands
What are glands? - ANSWER✔✔-specialized epithelium for secretion
How are glands formed? - ANSWER✔✔-invaginating pockets during embryogenesis
What are the two types of glands? - ANSWER✔✔-exocrine and endocrine
What are examples of exocrine? - ANSWER✔✔-ducts - exit body
What are examples of endocrine? - ANSWER✔✔-no ducts - use blood vessels
What are connective tissue? - ANSWER✔✔-few cells surrounded by abundance of extracellular material
What does connective tissue do? - ANSWER✔✔--connects, supports, and anchors various body parts
-transportation & immunity
-energy and storage
Page 4/45
