WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
Question 1
Which part of the cell is responsible for producing energy?
(A) Nucleus
(B) Ribosome
(C) Mitochondria $%^&^*(
&^*^^*(&
(D) Golgi apparatus
&^*(^&^*
(&^&&
Correct Option: (C) Mitochondria
EXPLANATION: Mitochondria are known as the "powerhouses"
of the cell, as they convert nutrients into energy (ATP) through
cellular respiration.
Question 2
What is the primary function of red blood cells?
(A) Fight infections
(B) Clot blood
(C) Transport oxygen
(D) Transport carbon dioxide
Correct Option: (D) Transport carbon dioxide
EXPLANATION: While red blood cells primarily transport
oxygen from the lungs to tissues, they also play a crucial role in
transporting carbon dioxide from tissues back to the lungs for
exhalation.
Question 3
,WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
Which system is primarily responsible for regulating hormones in
the body?
(A) Nervous system
(B) Endocrine system
(C) Endocrine system $%^&^*(
(D) Circulatory system &^*^^*(&
&^*(^&^*
Correct Option: (C) Endocrine system (&^&&
EXPLANATION: The endocrine system consists of glands that
release hormones into the bloodstream, regulating various
functions such as metabolism, growth, and mood.
Question 4
Which part of the brain is responsible for coordination and
balance?
(A) Cerebrum
(B) Brainstem
(C) Cerebellum
(D) Thalamus
Correct Option: (C) Cerebellum
EXPLANATION: The cerebellum is crucial for coordinating
voluntary movements, maintaining posture, and balancing the
body.
Question 5
What is the basic functional unit of the kidney?
,WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
(A) Neuron
(B) Alveolus
(C) Glomerulus
(D) Nephron
Correct Option: (D) Nephron $%^&^*(
EXPLANATION: Nephrons are the functional units of the kidney, &^*^^*(&
responsible for filtering blood and forming urine. &^*(^&^*
(&^&&
Question 6
Which type of joint allows for the greatest range of motion?
(A) Hinge joint
(B) Pivot joint
(C) Saddle joint
(D) Ball-and-socket joint
Correct Option: (D) Ball-and-socket joint
EXPLANATION: Ball-and-socket joints, such as the shoulder and
hip joints, allow for rotational movement in multiple directions.
Question 7
What is the largest organ in the human body?
(A) Brain
(B) Heart
(C) Liver
(D) Skin
, WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
Correct Option: (D) Skin
EXPLANATION: The skin is the largest organ, serving as a
protective barrier and playing roles in sensation and temperature
regulation.
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&^*^^*(&
Question 8
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(&^&&
Which type of blood vessel carries blood away from the heart?
(A) Veins
(B) Capillaries
(C) Arteries
(D) Venules
Correct Option: (C) Arteries
EXPLANATION: Arteries are blood vessels that carry
oxygenated blood away from the heart to the body, except for the
pulmonary arteries, which carry deoxygenated blood to the lungs.
Question 9
Which structure in the respiratory system is primarily responsible
for gas exchange?
(A) Trachea
(B) Bronchi
(C) Alveoli
(D) Lungs
Correct Option: (C) Alveoli
EXPLANATION: Alveoli are tiny air sacs in the lungs where the
exchange of oxygen and carbon dioxide occurs.
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
Question 1
Which part of the cell is responsible for producing energy?
(A) Nucleus
(B) Ribosome
(C) Mitochondria $%^&^*(
&^*^^*(&
(D) Golgi apparatus
&^*(^&^*
(&^&&
Correct Option: (C) Mitochondria
EXPLANATION: Mitochondria are known as the "powerhouses"
of the cell, as they convert nutrients into energy (ATP) through
cellular respiration.
Question 2
What is the primary function of red blood cells?
(A) Fight infections
(B) Clot blood
(C) Transport oxygen
(D) Transport carbon dioxide
Correct Option: (D) Transport carbon dioxide
EXPLANATION: While red blood cells primarily transport
oxygen from the lungs to tissues, they also play a crucial role in
transporting carbon dioxide from tissues back to the lungs for
exhalation.
Question 3
,WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
Which system is primarily responsible for regulating hormones in
the body?
(A) Nervous system
(B) Endocrine system
(C) Endocrine system $%^&^*(
(D) Circulatory system &^*^^*(&
&^*(^&^*
Correct Option: (C) Endocrine system (&^&&
EXPLANATION: The endocrine system consists of glands that
release hormones into the bloodstream, regulating various
functions such as metabolism, growth, and mood.
Question 4
Which part of the brain is responsible for coordination and
balance?
(A) Cerebrum
(B) Brainstem
(C) Cerebellum
(D) Thalamus
Correct Option: (C) Cerebellum
EXPLANATION: The cerebellum is crucial for coordinating
voluntary movements, maintaining posture, and balancing the
body.
Question 5
What is the basic functional unit of the kidney?
,WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
(A) Neuron
(B) Alveolus
(C) Glomerulus
(D) Nephron
Correct Option: (D) Nephron $%^&^*(
EXPLANATION: Nephrons are the functional units of the kidney, &^*^^*(&
responsible for filtering blood and forming urine. &^*(^&^*
(&^&&
Question 6
Which type of joint allows for the greatest range of motion?
(A) Hinge joint
(B) Pivot joint
(C) Saddle joint
(D) Ball-and-socket joint
Correct Option: (D) Ball-and-socket joint
EXPLANATION: Ball-and-socket joints, such as the shoulder and
hip joints, allow for rotational movement in multiple directions.
Question 7
What is the largest organ in the human body?
(A) Brain
(B) Heart
(C) Liver
(D) Skin
, WGU D313 Anatomy and Physiology Objective Assessment
2025 | Accurate Exam Questions with Detailed Answers,
Study Guide, and Summarized Notes | Expert Verified for
Guaranteed Pass | Latest Update
Correct Option: (D) Skin
EXPLANATION: The skin is the largest organ, serving as a
protective barrier and playing roles in sensation and temperature
regulation.
$%^&^*(
&^*^^*(&
Question 8
&^*(^&^*
(&^&&
Which type of blood vessel carries blood away from the heart?
(A) Veins
(B) Capillaries
(C) Arteries
(D) Venules
Correct Option: (C) Arteries
EXPLANATION: Arteries are blood vessels that carry
oxygenated blood away from the heart to the body, except for the
pulmonary arteries, which carry deoxygenated blood to the lungs.
Question 9
Which structure in the respiratory system is primarily responsible
for gas exchange?
(A) Trachea
(B) Bronchi
(C) Alveoli
(D) Lungs
Correct Option: (C) Alveoli
EXPLANATION: Alveoli are tiny air sacs in the lungs where the
exchange of oxygen and carbon dioxide occurs.
