BIO 201 Midterm Exam – A&P I – (2026) Actual Questions
& Answers (StraighterLine) 100% Guarantee Pass
Question 1. The study of the structure of body parts and their relationships to one
another is called:
A. Physiology
B. Anatomy
C. Histology
D. Cytology
Correct Answer: B
Rationale:
Anatomy is the study of the structure of body parts and their relationships. Physiology
(A) studies function. Histology (C) studies tissues. Cytology (D) studies cells.
Question 2. The study of the function of the body and its parts is called:
A. Anatomy
B. Physiology
C. Embryology
D. Pathology
Correct Answer: B
Rationale:
Physiology is the study of how body parts function. Anatomy (A) studies structure.
Embryology (C) studies development. Pathology (D) studies disease.
Question 3. Which level of structural organization is composed of similar cells
working together for a specific function?
,A. Chemical
B. Cellular
C. Tissue
D. Organ
Correct Answer: C
Rationale:
A tissue is a group of similar cells with a common function. Chemical (A) is
atoms/molecules. Cellular (B) is cells. Organ (D) is multiple tissues.
Question 4. The maintenance of a relatively stable internal environment is called:
A. Metabolism
B. Homeostasis
C. Catabolism
D. Anabolism
Correct Answer: B
Rationale:
Homeostasis is the maintenance of stable internal conditions. Metabolism (A) is all
chemical reactions. Catabolism (C) is breakdown. Anabolism (D) is synthesis.
Question 5. Most homeostatic control mechanisms are examples of:
A. Positive feedback
B. Negative feedback
C. Feedforward control
D. Irreversible change
Correct Answer: B
Rationale:
Most homeostatic mechanisms use negative feedback to reverse a deviation from the
,set point. Positive feedback (A) amplifies change. Feedforward (C) anticipates change.
Irreversible change (D) is not a control mechanism.
Question 6. Which of the following is an example of positive feedback?
A. Regulation of blood glucose
B. Regulation of body temperature
C. Childbirth contractions
D. Regulation of blood pressure
Correct Answer: C
Rationale:
Childbirth contractions use positive feedback: contractions intensify until delivery. Blood
glucose (A), temperature (B), and blood pressure (D) are regulated by negative feedback.
Question 7. In anatomical position, the body is:
A. Lying face down
B. Standing erect, feet flat, arms at sides, palms forward
C. Lying face up
D. Sitting with arms crossed
Correct Answer: B
Rationale:
Anatomical position is standing erect, feet flat on the floor, arms at sides, palms facing
forward. Face down (A) is prone. Face up (C) is supine. Sitting (D) is not anatomical
position.
Question 8. The term that means "toward the head" is:
A. Inferior
B. Superior
, C. Distal
D. Proximal
Correct Answer: B
Rationale:
Superior means toward the head. Inferior (A) means away from the head. Distal (C)
means farther from the trunk. Proximal (D) means closer to the trunk.
Question 9. The term that means "farther from the point of attachment to the
body" is:
A. Proximal
B. Distal
C. Medial
D. Lateral
Correct Answer: B
Rationale:
Distal means farther from the trunk or point of attachment. Proximal (A) means closer.
Medial (C) means toward the midline. Lateral (D) means away from the midline.
Question 10. A plane that divides the body into right and left parts is called a:
A. Frontal plane
B. Transverse plane
C. Sagittal plane
D. Oblique plane
Correct Answer: C
Rationale:
A sagittal plane divides the body into right and left parts. Frontal (A) divides
anterior/posterior. Transverse (B) divides superior/inferior. Oblique (D) is at an angle.
& Answers (StraighterLine) 100% Guarantee Pass
Question 1. The study of the structure of body parts and their relationships to one
another is called:
A. Physiology
B. Anatomy
C. Histology
D. Cytology
Correct Answer: B
Rationale:
Anatomy is the study of the structure of body parts and their relationships. Physiology
(A) studies function. Histology (C) studies tissues. Cytology (D) studies cells.
Question 2. The study of the function of the body and its parts is called:
A. Anatomy
B. Physiology
C. Embryology
D. Pathology
Correct Answer: B
Rationale:
Physiology is the study of how body parts function. Anatomy (A) studies structure.
Embryology (C) studies development. Pathology (D) studies disease.
Question 3. Which level of structural organization is composed of similar cells
working together for a specific function?
,A. Chemical
B. Cellular
C. Tissue
D. Organ
Correct Answer: C
Rationale:
A tissue is a group of similar cells with a common function. Chemical (A) is
atoms/molecules. Cellular (B) is cells. Organ (D) is multiple tissues.
Question 4. The maintenance of a relatively stable internal environment is called:
A. Metabolism
B. Homeostasis
C. Catabolism
D. Anabolism
Correct Answer: B
Rationale:
Homeostasis is the maintenance of stable internal conditions. Metabolism (A) is all
chemical reactions. Catabolism (C) is breakdown. Anabolism (D) is synthesis.
Question 5. Most homeostatic control mechanisms are examples of:
A. Positive feedback
B. Negative feedback
C. Feedforward control
D. Irreversible change
Correct Answer: B
Rationale:
Most homeostatic mechanisms use negative feedback to reverse a deviation from the
,set point. Positive feedback (A) amplifies change. Feedforward (C) anticipates change.
Irreversible change (D) is not a control mechanism.
Question 6. Which of the following is an example of positive feedback?
A. Regulation of blood glucose
B. Regulation of body temperature
C. Childbirth contractions
D. Regulation of blood pressure
Correct Answer: C
Rationale:
Childbirth contractions use positive feedback: contractions intensify until delivery. Blood
glucose (A), temperature (B), and blood pressure (D) are regulated by negative feedback.
Question 7. In anatomical position, the body is:
A. Lying face down
B. Standing erect, feet flat, arms at sides, palms forward
C. Lying face up
D. Sitting with arms crossed
Correct Answer: B
Rationale:
Anatomical position is standing erect, feet flat on the floor, arms at sides, palms facing
forward. Face down (A) is prone. Face up (C) is supine. Sitting (D) is not anatomical
position.
Question 8. The term that means "toward the head" is:
A. Inferior
B. Superior
, C. Distal
D. Proximal
Correct Answer: B
Rationale:
Superior means toward the head. Inferior (A) means away from the head. Distal (C)
means farther from the trunk. Proximal (D) means closer to the trunk.
Question 9. The term that means "farther from the point of attachment to the
body" is:
A. Proximal
B. Distal
C. Medial
D. Lateral
Correct Answer: B
Rationale:
Distal means farther from the trunk or point of attachment. Proximal (A) means closer.
Medial (C) means toward the midline. Lateral (D) means away from the midline.
Question 10. A plane that divides the body into right and left parts is called a:
A. Frontal plane
B. Transverse plane
C. Sagittal plane
D. Oblique plane
Correct Answer: C
Rationale:
A sagittal plane divides the body into right and left parts. Frontal (A) divides
anterior/posterior. Transverse (B) divides superior/inferior. Oblique (D) is at an angle.
