Human Anatomy & Physiology 11th Edition
by Elaine N. Marieb Test Bank 2026/2027 |
Complete Exam Questions and Verified
Answers with Detailed Rationales | A+
Study Guide
Question 1
Which organelle is primarily responsible for producing ATP in
eukaryotic cells?
A. Ribosome
B. Golgi apparatus
C. Mitochondrion
D. Lysosome
Answer: C. Mitochondrion
Rationale: Mitochondria are known as the "powerhouses" of the cell
because they generate most of the ATP through cellular respiration.
Question 2
The functional unit of the kidney is the:
A. Neuron
B. Nephron
C. Alveolus
D. Sarcomere
Answer: B. Nephron
Rationale: The nephron is the microscopic structure responsible for
filtering blood, reabsorbing nutrients, and producing urine.
,Question 3
Which tissue type is specialized for contraction and movement?
A. Epithelial tissue
B. Connective tissue
C. Nervous tissue
D. Muscle tissue
Answer: D. Muscle tissue
Rationale: Muscle tissue contains contractile proteins that allow it to
shorten and generate force for movement.
Question 4
What is the primary function of red blood cells?
A. Produce antibodies
B. Transport oxygen
C. Form blood clots
D. Destroy pathogens
Answer: B. Transport oxygen
Rationale: Red blood cells contain hemoglobin, which binds oxygen and
carries it throughout the body.
Question 5
The heart is located within which body cavity?
A. Abdominal cavity
B. Pelvic cavity
C. Thoracic cavity
D. Spinal cavity
Answer: C. Thoracic cavity
,Rationale: The heart is situated in the mediastinum within the thoracic
cavity.
Question 6
Which bone is commonly known as the collarbone?
A. Scapula
B. Clavicle
C. Sternum
D. Humerus
Answer: B. Clavicle
Rationale: The clavicle connects the upper limb to the trunk and is
commonly referred to as the collarbone.
Question 7
The basic structural and functional unit of the nervous system is the:
A. Osteocyte
B. Myocyte
C. Neuron
D. Nephron
Answer: C. Neuron
Rationale: Neurons transmit electrical signals and are the primary cells
responsible for nervous system communication.
Question 8
Which chamber of the heart pumps oxygenated blood into the systemic
circulation?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
, Answer: D. Left ventricle
Rationale: The left ventricle generates the pressure needed to propel
oxygenated blood through the aorta and the rest of the body.
Question 9
Gas exchange in the lungs occurs primarily in the:
A. Bronchi
B. Trachea
C. Alveoli
D. Larynx
Answer: C. Alveoli
Rationale: Alveoli provide a large surface area where oxygen and
carbon dioxide diffuse between air and blood.
Question 10
Which hormone lowers blood glucose levels?
A. Glucagon
B. Cortisol
C. Epinephrine
D. Insulin
Answer: D. Insulin
Rationale: Insulin facilitates the uptake of glucose by cells, thereby
reducing blood glucose concentrations.
Question 11
Which membrane surrounds the heart?
A. Pleura
B. Pericardium
by Elaine N. Marieb Test Bank 2026/2027 |
Complete Exam Questions and Verified
Answers with Detailed Rationales | A+
Study Guide
Question 1
Which organelle is primarily responsible for producing ATP in
eukaryotic cells?
A. Ribosome
B. Golgi apparatus
C. Mitochondrion
D. Lysosome
Answer: C. Mitochondrion
Rationale: Mitochondria are known as the "powerhouses" of the cell
because they generate most of the ATP through cellular respiration.
Question 2
The functional unit of the kidney is the:
A. Neuron
B. Nephron
C. Alveolus
D. Sarcomere
Answer: B. Nephron
Rationale: The nephron is the microscopic structure responsible for
filtering blood, reabsorbing nutrients, and producing urine.
,Question 3
Which tissue type is specialized for contraction and movement?
A. Epithelial tissue
B. Connective tissue
C. Nervous tissue
D. Muscle tissue
Answer: D. Muscle tissue
Rationale: Muscle tissue contains contractile proteins that allow it to
shorten and generate force for movement.
Question 4
What is the primary function of red blood cells?
A. Produce antibodies
B. Transport oxygen
C. Form blood clots
D. Destroy pathogens
Answer: B. Transport oxygen
Rationale: Red blood cells contain hemoglobin, which binds oxygen and
carries it throughout the body.
Question 5
The heart is located within which body cavity?
A. Abdominal cavity
B. Pelvic cavity
C. Thoracic cavity
D. Spinal cavity
Answer: C. Thoracic cavity
,Rationale: The heart is situated in the mediastinum within the thoracic
cavity.
Question 6
Which bone is commonly known as the collarbone?
A. Scapula
B. Clavicle
C. Sternum
D. Humerus
Answer: B. Clavicle
Rationale: The clavicle connects the upper limb to the trunk and is
commonly referred to as the collarbone.
Question 7
The basic structural and functional unit of the nervous system is the:
A. Osteocyte
B. Myocyte
C. Neuron
D. Nephron
Answer: C. Neuron
Rationale: Neurons transmit electrical signals and are the primary cells
responsible for nervous system communication.
Question 8
Which chamber of the heart pumps oxygenated blood into the systemic
circulation?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
, Answer: D. Left ventricle
Rationale: The left ventricle generates the pressure needed to propel
oxygenated blood through the aorta and the rest of the body.
Question 9
Gas exchange in the lungs occurs primarily in the:
A. Bronchi
B. Trachea
C. Alveoli
D. Larynx
Answer: C. Alveoli
Rationale: Alveoli provide a large surface area where oxygen and
carbon dioxide diffuse between air and blood.
Question 10
Which hormone lowers blood glucose levels?
A. Glucagon
B. Cortisol
C. Epinephrine
D. Insulin
Answer: D. Insulin
Rationale: Insulin facilitates the uptake of glucose by cells, thereby
reducing blood glucose concentrations.
Question 11
Which membrane surrounds the heart?
A. Pleura
B. Pericardium
