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BIO 201 EXAM 1 – ANATOMY & PHYSIOLOGY I
(STRAIGHTERLINE) 2026 COMPLETE (115)
CURRENT TESTING QUESTIONS AND
CORRECT ANSWERS WITH DETAILED
RATIONALES.
BIO 201
Prepare for the BIO 201 Exam 1 – Anatomy & Physiology I (StraighterLine)
with focused review materials covering introduction to anatomy &
physiology, anatomical terminology, levels of biological organization,
homeostasis, basic chemistry concepts, cellular structure and function,
membrane transport mechanisms, cellular metabolism, and tissue
organization. Suitable for students preparing for the StraighterLine BIO
201 Exam 1 and introductory anatomy and physiology examinations.
Multiple choice.
SECTION I: INTRODUCTION TO ANATOMY & PHYSIOLOGY
(Questions 1–25)
1. Anatomy is the study of:
A. The function of the body
B. The structure of the body
C. The chemical processes in the body
D. The diseases of the body
Correct answer: B. The structure of the body
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Rationale: Anatomy is the study of the structure and shape of
the body and its parts. Physiology is the study of how the body
and its parts function. Structure determines function.
2. The study of the function of the body is called:
A. Anatomy
B. Histology
C. Physiology
D. Cytology
Correct answer: C. Physiology
Rationale: Physiology is the study of the function of the body and
its parts. Anatomy and physiology are closely related—structure
determines function.
3. The correct anatomical position is:
A. Lying face down, arms at sides
B. Standing upright, facing forward, arms at sides, palms facing
forward
C. Lying face up, arms crossed
D. Standing upright, facing forward, palms facing backward
Correct answer: B. Standing upright, facing forward, arms at
sides, palms facing forward
Rationale: In anatomical position, the body is standing upright,
facing forward, with arms at the sides and palms facing forward.
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This position is the standard reference for anatomical
directional terms.
4. The plane that divides the body into equal left and right halves
is the:
A. Frontal plane
B. Transverse plane
C. Sagittal plane
D. Midsagittal (median) plane
Correct answer: D. Midsagittal (median) plane
Rationale: The midsagittal plane divides the body into equal left
and right halves. A sagittal plane divides the body into unequal
left and right portions. The frontal plane divides the body into
anterior and posterior portions.
5. The frontal (coronal) plane divides the body into:
A. Superior and inferior portions
B. Right and left portions
C. Anterior and posterior portions
D. Proximal and distal portions
Correct answer: C. Anterior and posterior portions
Rationale: The frontal (coronal) plane divides the body into
anterior (front) and posterior (back) portions. It is also called the
coronal plane because it is oriented at right angles to the
median plane.
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6. The transverse (horizontal) plane divides the body into:
A. Anterior and posterior portions
B. Right and left portions
C. Superior and inferior portions
D. Proximal and distal portions
Correct answer: C. Superior and inferior portions
Rationale: The transverse plane divides the body into superior
(upper) and inferior (lower) portions. It is also called the
horizontal or cross-sectional plane.
7. The term "superior" means:
A. Toward the head or upper part of the body
B. Toward the feet or lower part of the body
C. Toward the front of the body
D. Toward the back of the body
Correct answer: A. Toward the head or upper part of the body
Rationale: Superior means toward the head or upper part of the
body. The opposite is inferior (toward the feet). "Cranial" is a
synonym for superior in anatomical terminology.
8. The term "lateral" means:
A. Toward the midline of the body
B. Away from the midline of the body
C. Toward the front of the body
BIO 201 EXAM 1 – ANATOMY & PHYSIOLOGY I
(STRAIGHTERLINE) 2026 COMPLETE (115)
CURRENT TESTING QUESTIONS AND
CORRECT ANSWERS WITH DETAILED
RATIONALES.
BIO 201
Prepare for the BIO 201 Exam 1 – Anatomy & Physiology I (StraighterLine)
with focused review materials covering introduction to anatomy &
physiology, anatomical terminology, levels of biological organization,
homeostasis, basic chemistry concepts, cellular structure and function,
membrane transport mechanisms, cellular metabolism, and tissue
organization. Suitable for students preparing for the StraighterLine BIO
201 Exam 1 and introductory anatomy and physiology examinations.
Multiple choice.
SECTION I: INTRODUCTION TO ANATOMY & PHYSIOLOGY
(Questions 1–25)
1. Anatomy is the study of:
A. The function of the body
B. The structure of the body
C. The chemical processes in the body
D. The diseases of the body
Correct answer: B. The structure of the body
, Page 2 of 53
Rationale: Anatomy is the study of the structure and shape of
the body and its parts. Physiology is the study of how the body
and its parts function. Structure determines function.
2. The study of the function of the body is called:
A. Anatomy
B. Histology
C. Physiology
D. Cytology
Correct answer: C. Physiology
Rationale: Physiology is the study of the function of the body and
its parts. Anatomy and physiology are closely related—structure
determines function.
3. The correct anatomical position is:
A. Lying face down, arms at sides
B. Standing upright, facing forward, arms at sides, palms facing
forward
C. Lying face up, arms crossed
D. Standing upright, facing forward, palms facing backward
Correct answer: B. Standing upright, facing forward, arms at
sides, palms facing forward
Rationale: In anatomical position, the body is standing upright,
facing forward, with arms at the sides and palms facing forward.
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This position is the standard reference for anatomical
directional terms.
4. The plane that divides the body into equal left and right halves
is the:
A. Frontal plane
B. Transverse plane
C. Sagittal plane
D. Midsagittal (median) plane
Correct answer: D. Midsagittal (median) plane
Rationale: The midsagittal plane divides the body into equal left
and right halves. A sagittal plane divides the body into unequal
left and right portions. The frontal plane divides the body into
anterior and posterior portions.
5. The frontal (coronal) plane divides the body into:
A. Superior and inferior portions
B. Right and left portions
C. Anterior and posterior portions
D. Proximal and distal portions
Correct answer: C. Anterior and posterior portions
Rationale: The frontal (coronal) plane divides the body into
anterior (front) and posterior (back) portions. It is also called the
coronal plane because it is oriented at right angles to the
median plane.
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6. The transverse (horizontal) plane divides the body into:
A. Anterior and posterior portions
B. Right and left portions
C. Superior and inferior portions
D. Proximal and distal portions
Correct answer: C. Superior and inferior portions
Rationale: The transverse plane divides the body into superior
(upper) and inferior (lower) portions. It is also called the
horizontal or cross-sectional plane.
7. The term "superior" means:
A. Toward the head or upper part of the body
B. Toward the feet or lower part of the body
C. Toward the front of the body
D. Toward the back of the body
Correct answer: A. Toward the head or upper part of the body
Rationale: Superior means toward the head or upper part of the
body. The opposite is inferior (toward the feet). "Cranial" is a
synonym for superior in anatomical terminology.
8. The term "lateral" means:
A. Toward the midline of the body
B. Away from the midline of the body
C. Toward the front of the body
