PNA 100 Mock Newest Exam 2026 \COMPLETE
QUESTIONS AND CORRECT SOLUTIONS \VERIFIED
100% ALREADY GRADED A+\BIO Physiology\
LATEST UPDATE
The sodium- potassium Maintaining a low intracellular concentration of sodium ions
pump (Na+/k + ATPase) is
responsible for:
a. Maintaining a low
intracellular
concentration of
sodium ions
b. Maintaining a low
intracellular
concentration of
potassium ions
c. Maintaining an
intracellular pH lower
than 2
d. All of the above
Which of the following isn't Vitamin D synthesis
a function of the skeletal
system?
a. Mineral homeostasis
b. Triglyceride storage
c. Vitamin D synthesis
d. Allows movement
,Which of the following is a Osteoblasts
"bone-building" cell?
a. Osteoclasts
b. Osteocytes
c. Osteogenic cells
d. Osteoblasts
Which type of bone is an Long bones
epiphysis located at the
end of?
a. Flat bones
b. Long bones
c. Irregular bones
d. Short bones
Joints lacking a synovial cavity Fibrous joints
with the presence of fibrous
connective tissue
connecting articulating
bones are:
a. Synovial joints
b. Fibrous joints
c. Synchondroses
d. Symphyses
The movement of the head Flexion
over the neck forward is
referred to as:
a. Flexion
b. Extension
c. Hyperextension
d. Abduction
A fibrous joint that is Suture
composed of a thin layer
of dense irregular tissue
found
exclusively between the
bones of the skull is termed
a/an:
a. Condyle
b. Bursa
c. Articulation
d. Suture
, Which of the following Vitamin A
vitamins is
responsible for stimulating
the activity of
osteoblasts?
a. Vitamin C
b. Vitamin D
c. Vitamin A
d. Vitamin K
The main components of Actin and myosin
myofibrils are:
a. Actin and myosin
b. ATP
c. ATPase
d. Troponin
The sarcoplasmic reticulum Ca+, when the muscle fiber is at rest
stores:
a. Ca+, when the muscle fiber is
at rest
b. ATP for the muscle
contraction
c. ATPase to break down ATP
d. Acetylcholine
The masseter muscle is found Head, chewing
in the _________ and plays a
role in _.
a. Neck, turning of the head
b. Head, chewing
c. Abdomen, breathing
d. Legs, walking
The neurons that carry Afferent neurons
sensory impulses to the CNS
are called?
a. Interneurons
b. Efferent neurons
c. Afferent neurons
d. Intraneurons
QUESTIONS AND CORRECT SOLUTIONS \VERIFIED
100% ALREADY GRADED A+\BIO Physiology\
LATEST UPDATE
The sodium- potassium Maintaining a low intracellular concentration of sodium ions
pump (Na+/k + ATPase) is
responsible for:
a. Maintaining a low
intracellular
concentration of
sodium ions
b. Maintaining a low
intracellular
concentration of
potassium ions
c. Maintaining an
intracellular pH lower
than 2
d. All of the above
Which of the following isn't Vitamin D synthesis
a function of the skeletal
system?
a. Mineral homeostasis
b. Triglyceride storage
c. Vitamin D synthesis
d. Allows movement
,Which of the following is a Osteoblasts
"bone-building" cell?
a. Osteoclasts
b. Osteocytes
c. Osteogenic cells
d. Osteoblasts
Which type of bone is an Long bones
epiphysis located at the
end of?
a. Flat bones
b. Long bones
c. Irregular bones
d. Short bones
Joints lacking a synovial cavity Fibrous joints
with the presence of fibrous
connective tissue
connecting articulating
bones are:
a. Synovial joints
b. Fibrous joints
c. Synchondroses
d. Symphyses
The movement of the head Flexion
over the neck forward is
referred to as:
a. Flexion
b. Extension
c. Hyperextension
d. Abduction
A fibrous joint that is Suture
composed of a thin layer
of dense irregular tissue
found
exclusively between the
bones of the skull is termed
a/an:
a. Condyle
b. Bursa
c. Articulation
d. Suture
, Which of the following Vitamin A
vitamins is
responsible for stimulating
the activity of
osteoblasts?
a. Vitamin C
b. Vitamin D
c. Vitamin A
d. Vitamin K
The main components of Actin and myosin
myofibrils are:
a. Actin and myosin
b. ATP
c. ATPase
d. Troponin
The sarcoplasmic reticulum Ca+, when the muscle fiber is at rest
stores:
a. Ca+, when the muscle fiber is
at rest
b. ATP for the muscle
contraction
c. ATPase to break down ATP
d. Acetylcholine
The masseter muscle is found Head, chewing
in the _________ and plays a
role in _.
a. Neck, turning of the head
b. Head, chewing
c. Abdomen, breathing
d. Legs, walking
The neurons that carry Afferent neurons
sensory impulses to the CNS
are called?
a. Interneurons
b. Efferent neurons
c. Afferent neurons
d. Intraneurons
