•BIO 201 Midterm Exam – A&P I –
(2026) Actual Questions & Answers
(StraighterLine) 100% Guarantee
Pass
• 1. The study of the function of body parts is called:
o A. Anatomy
o B. Histology
o C. Physiology
o D. Embryology
o Correct Answer: C
o Rationale: Physiology is the branch of biology that deals with the
normal functions of living organisms and their parts. Anatomy is the
study of structure, histology is the study of tissues, and embryology is
the study of embryos.
• 2. Which of the following is the correct order of structural organization
from simplest to most complex?
o A. Organ, Tissue, Cell, Molecule, Organism
o B. Molecule, Cell, Tissue, Organ, Organ System
o C. Cell, Molecule, Organ, Tissue, Organ System
o D. Tissue, Cell, Organ, Molecule, Organism
o Correct Answer: B
o Rationale: The levels of structural organization are chemical
(molecule), cellular, tissue, organ, organ system, and organismal.
,• 3. The sum of all chemical reactions in the body is known as:
o A. Homeostasis
o B. Metabolism
o C. Responsiveness
o D. Differentiation
o Correct Answer: B
o Rationale: Metabolism encompasses all anabolic (building) and
catabolic (breaking down) chemical reactions that occur within the
body.
• 4. The maintenance of a relatively stable internal environment, despite
changes in the external environment, is called:
o A. Metabolism
o B. Homeostasis
o C. Positive feedback
o D. Adaptation
o Correct Answer: B
o Rationale: Homeostasis is the body's ability to maintain a stable
internal environment, which is crucial for survival and proper
function.
• 5. A patient has a fever. This is an example of which type of feedback
mechanism?
o A. Negative feedback
o B. Positive feedback
o C. Neutral feedback
o D. Homeostatic imbalance
, o Correct Answer: B
o Rationale: A fever is a classic example of positive feedback. The
initial stimulus (e.g., infection) causes a response (increased body
temperature) that intensifies the original stimulus, driving the body
temperature higher until the underlying cause is resolved.
• 6. The sternum is located on which side of the body?
o A. Posterior
o B. Lateral
o C. Anterior
o D. Superior
o Correct Answer: C
o Rationale: The sternum (breastbone) is located on the anterior
(front) side of the body.
• 7. The anatomical term for the "back of the knee" is:
o A. Popliteal
o B. Crural
o C. Sural
o D. Femoral
o Correct Answer: A
o Rationale: The popliteal region refers to the area behind the
knee. Crural is the leg, sural is the calf, and femoral is the thigh.
• 8. Which body cavity contains the heart and lungs?
o A. Abdominal cavity
o B. Pelvic cavity
, o C. Thoracic cavity
o D. Cranial cavity
o Correct Answer: C
o Rationale: The thoracic cavity is the superior portion of the
ventral body cavity and houses the heart (in the mediastinum) and
lungs (in the pleural cavities).
• 9. The serous membrane that covers the surface of the heart is the:
o A. Parietal pericardium
o B. Visceral pericardium
o C. Parietal pleura
o D. Visceral pleura
o Correct Answer: B
o Rationale: The visceral pericardium (also called the epicardium) is
the serous membrane that directly covers the heart muscle. The
parietal pericardium lines the fibrous pericardium.
• 10. The study of tissues is called:
o A. Cytology
o B. Histology
o C. Pathology
o D. Embryology
o Correct Answer: B
o Rationale: Histology is the microscopic study of the structure and
function of tissues.
• 11. Which of the following is NOT one of the four primary tissue types?
(2026) Actual Questions & Answers
(StraighterLine) 100% Guarantee
Pass
• 1. The study of the function of body parts is called:
o A. Anatomy
o B. Histology
o C. Physiology
o D. Embryology
o Correct Answer: C
o Rationale: Physiology is the branch of biology that deals with the
normal functions of living organisms and their parts. Anatomy is the
study of structure, histology is the study of tissues, and embryology is
the study of embryos.
• 2. Which of the following is the correct order of structural organization
from simplest to most complex?
o A. Organ, Tissue, Cell, Molecule, Organism
o B. Molecule, Cell, Tissue, Organ, Organ System
o C. Cell, Molecule, Organ, Tissue, Organ System
o D. Tissue, Cell, Organ, Molecule, Organism
o Correct Answer: B
o Rationale: The levels of structural organization are chemical
(molecule), cellular, tissue, organ, organ system, and organismal.
,• 3. The sum of all chemical reactions in the body is known as:
o A. Homeostasis
o B. Metabolism
o C. Responsiveness
o D. Differentiation
o Correct Answer: B
o Rationale: Metabolism encompasses all anabolic (building) and
catabolic (breaking down) chemical reactions that occur within the
body.
• 4. The maintenance of a relatively stable internal environment, despite
changes in the external environment, is called:
o A. Metabolism
o B. Homeostasis
o C. Positive feedback
o D. Adaptation
o Correct Answer: B
o Rationale: Homeostasis is the body's ability to maintain a stable
internal environment, which is crucial for survival and proper
function.
• 5. A patient has a fever. This is an example of which type of feedback
mechanism?
o A. Negative feedback
o B. Positive feedback
o C. Neutral feedback
o D. Homeostatic imbalance
, o Correct Answer: B
o Rationale: A fever is a classic example of positive feedback. The
initial stimulus (e.g., infection) causes a response (increased body
temperature) that intensifies the original stimulus, driving the body
temperature higher until the underlying cause is resolved.
• 6. The sternum is located on which side of the body?
o A. Posterior
o B. Lateral
o C. Anterior
o D. Superior
o Correct Answer: C
o Rationale: The sternum (breastbone) is located on the anterior
(front) side of the body.
• 7. The anatomical term for the "back of the knee" is:
o A. Popliteal
o B. Crural
o C. Sural
o D. Femoral
o Correct Answer: A
o Rationale: The popliteal region refers to the area behind the
knee. Crural is the leg, sural is the calf, and femoral is the thigh.
• 8. Which body cavity contains the heart and lungs?
o A. Abdominal cavity
o B. Pelvic cavity
, o C. Thoracic cavity
o D. Cranial cavity
o Correct Answer: C
o Rationale: The thoracic cavity is the superior portion of the
ventral body cavity and houses the heart (in the mediastinum) and
lungs (in the pleural cavities).
• 9. The serous membrane that covers the surface of the heart is the:
o A. Parietal pericardium
o B. Visceral pericardium
o C. Parietal pleura
o D. Visceral pleura
o Correct Answer: B
o Rationale: The visceral pericardium (also called the epicardium) is
the serous membrane that directly covers the heart muscle. The
parietal pericardium lines the fibrous pericardium.
• 10. The study of tissues is called:
o A. Cytology
o B. Histology
o C. Pathology
o D. Embryology
o Correct Answer: B
o Rationale: Histology is the microscopic study of the structure and
function of tissues.
• 11. Which of the following is NOT one of the four primary tissue types?
