1|Page
S2025/2026 BYU CELL 220 EXAM 2 WITH ALL
COMPLETE QUESTIONS AND DETAILED CORRECT
ANSWERS WELL ERABORATED FOR
GUARANTEED PASS TOP-RATED A+.
BYU CELL
This essential study guide for the BYU CELL 220 exam provides
accurate practice questions and detailed answers covering core cellular
biology concepts. The material is clearly organized to help you master
key topics like cell structure, function, and metabolic pathways tested
in the course. Secure a top score and deepen your understanding of
fundamental biological principles with this targeted resource.
What are the three types of muscle tissue? ...... ANSWER
....... Skeletal, Cardiac, and Smooth
What are the properties of muscle tissue? ...... ANSWER
....... Excitability, Contractility, Elasticity, and
Extensability
Where is cardiac muscle found? ...... ANSWER .......
The Myocardium of the Heart
What are the Characteristics of Cardiac Muscle? ......
ANSWER ....... Branches Fibers, 1 or 2 nuclei,
Intercalated discs, Striations, auto-rhythmic, Involuntary
,2|Page
Where is smooth muscle found? ...... ANSWER .......
Walls of visceral organs
What are the characteristics of smooth muscle? ......
ANSWER ....... Fusiform shape, 1 nucleus, no striations,
involuntary, fatigue-resistant
What are the characteristics of skeletal muscle? ......
ANSWER ....... Large, Cylindrical, many nuclei,
striated, voluntary, vascular, innervated at neuromuscular
junctions, formed from fusion of myoblasts
What are the functions of skeletal muscle? ...... ANSWER
....... Movement, posture maintenance, temperature
regulation, storage of materials (amino acids and
glycogen), movement of materials, support abdominal
organs, joint stabilization
The endomysium wraps... ...... ANSWER ....... Muscle
fibers
The perimysium wraps... ...... ANSWER ....... Fascicles
,3|Page
The epimysium wraps... ...... ANSWER ....... Entire
muscles
Deep fascia wraps... ...... ANSWER ....... Muscle groups
What is the order of skeletal muscle organization from
smallest to largest? ...... ANSWER ....... Myosin/Actin
proteins, thick/thin filaments, myofibril, myofiber,
fascicle, muscle, muscle group
Collagen fibers of endomysium, perimysium, and epimysium
are __________ with tendons ...... ANSWER .......
Continuous
What wraps a muscle fiber? ...... ANSWER ....... The
Sarcolemma
Tendons connect muscles to... ...... ANSWER .......
Bones or skin
An aponeurosis is a... ...... ANSWER ....... Flat tendon
, 4|Page
Testosterone makes muscle fibers... ...... ANSWER .......
Wider and thicker
Where is skeletal muscle found? ...... ANSWER .......
Connected to the skeleton
What does actin do? ...... ANSWER ....... Contracts
muscle (acts)
What does myosin do? ...... ANSWER ....... Binds to
ATP
How do z lines move? ...... ANSWER ....... Closer
together. In toward M line.
What do troponin and tropomyosin do to aid muscle
movement? ...... ANSWER ....... Make a complex
allowing actin to slide
Actin is a _____ filament ...... ANSWER ....... Thin
Myosin is the _________ filament ...... ANSWER .......
Thick
S2025/2026 BYU CELL 220 EXAM 2 WITH ALL
COMPLETE QUESTIONS AND DETAILED CORRECT
ANSWERS WELL ERABORATED FOR
GUARANTEED PASS TOP-RATED A+.
BYU CELL
This essential study guide for the BYU CELL 220 exam provides
accurate practice questions and detailed answers covering core cellular
biology concepts. The material is clearly organized to help you master
key topics like cell structure, function, and metabolic pathways tested
in the course. Secure a top score and deepen your understanding of
fundamental biological principles with this targeted resource.
What are the three types of muscle tissue? ...... ANSWER
....... Skeletal, Cardiac, and Smooth
What are the properties of muscle tissue? ...... ANSWER
....... Excitability, Contractility, Elasticity, and
Extensability
Where is cardiac muscle found? ...... ANSWER .......
The Myocardium of the Heart
What are the Characteristics of Cardiac Muscle? ......
ANSWER ....... Branches Fibers, 1 or 2 nuclei,
Intercalated discs, Striations, auto-rhythmic, Involuntary
,2|Page
Where is smooth muscle found? ...... ANSWER .......
Walls of visceral organs
What are the characteristics of smooth muscle? ......
ANSWER ....... Fusiform shape, 1 nucleus, no striations,
involuntary, fatigue-resistant
What are the characteristics of skeletal muscle? ......
ANSWER ....... Large, Cylindrical, many nuclei,
striated, voluntary, vascular, innervated at neuromuscular
junctions, formed from fusion of myoblasts
What are the functions of skeletal muscle? ...... ANSWER
....... Movement, posture maintenance, temperature
regulation, storage of materials (amino acids and
glycogen), movement of materials, support abdominal
organs, joint stabilization
The endomysium wraps... ...... ANSWER ....... Muscle
fibers
The perimysium wraps... ...... ANSWER ....... Fascicles
,3|Page
The epimysium wraps... ...... ANSWER ....... Entire
muscles
Deep fascia wraps... ...... ANSWER ....... Muscle groups
What is the order of skeletal muscle organization from
smallest to largest? ...... ANSWER ....... Myosin/Actin
proteins, thick/thin filaments, myofibril, myofiber,
fascicle, muscle, muscle group
Collagen fibers of endomysium, perimysium, and epimysium
are __________ with tendons ...... ANSWER .......
Continuous
What wraps a muscle fiber? ...... ANSWER ....... The
Sarcolemma
Tendons connect muscles to... ...... ANSWER .......
Bones or skin
An aponeurosis is a... ...... ANSWER ....... Flat tendon
, 4|Page
Testosterone makes muscle fibers... ...... ANSWER .......
Wider and thicker
Where is skeletal muscle found? ...... ANSWER .......
Connected to the skeleton
What does actin do? ...... ANSWER ....... Contracts
muscle (acts)
What does myosin do? ...... ANSWER ....... Binds to
ATP
How do z lines move? ...... ANSWER ....... Closer
together. In toward M line.
What do troponin and tropomyosin do to aid muscle
movement? ...... ANSWER ....... Make a complex
allowing actin to slide
Actin is a _____ filament ...... ANSWER ....... Thin
Myosin is the _________ filament ...... ANSWER .......
Thick
