Master Study Guide & Answer Key | Understanding
Anatomy & Physiology (4th Edition) by Thompson | All 25
Chapters | Updated 2026/2027
Chapter 1: Organization of the Human Body
1. Which plane divides the body into equal right and left halves?
A) Frontal plane
B) Sagittal plane (midsagittal)
C) Transverse plane
D) Coronal plane
Answer: B
Rationale: The midsagittal plane divides the body into equal right and
left portions. The frontal (coronal) plane divides the body into anterior
and posterior portions, while the transverse (horizontal) plane divides it
into superior and inferior portions.
Chapter 2: Chemistry of Life
2. Which type of chemical bond is responsible for the surface tension of
water and the holding together of the DNA double helix?
A) Ionic bonds
B) Covalent bonds
C) Hydrogen bonds
D) Peptide bonds
, Answer: C
Rationale: Hydrogen bonds form between a slightly positive hydrogen
atom and a slightly negative atom (like oxygen or nitrogen). They
provide structural stability to DNA and proteins and give water its
unique properties (cohesion/surface tension).
Chapter 3: Cell Structure
3. Which organelle is considered the "powerhouse" of the cell and
contains its own DNA?
A) Rough Endoplasmic Reticulum
B) Golgi Apparatus
C) Lysosome
D) Mitochondrion
Answer: D
Rationale: Mitochondria are the sites of aerobic cellular respiration (ATP
production). They contain their own circular DNA (mtDNA), supporting
the endosymbiotic theory.
Chapter 4: Cellular Metabolism
4. During glycolysis, one molecule of glucose is converted into:
A) Two molecules of pyruvate
B) Two molecules of lactate
C) 36 molecules of ATP
Anatomy & Physiology (4th Edition) by Thompson | All 25
Chapters | Updated 2026/2027
Chapter 1: Organization of the Human Body
1. Which plane divides the body into equal right and left halves?
A) Frontal plane
B) Sagittal plane (midsagittal)
C) Transverse plane
D) Coronal plane
Answer: B
Rationale: The midsagittal plane divides the body into equal right and
left portions. The frontal (coronal) plane divides the body into anterior
and posterior portions, while the transverse (horizontal) plane divides it
into superior and inferior portions.
Chapter 2: Chemistry of Life
2. Which type of chemical bond is responsible for the surface tension of
water and the holding together of the DNA double helix?
A) Ionic bonds
B) Covalent bonds
C) Hydrogen bonds
D) Peptide bonds
, Answer: C
Rationale: Hydrogen bonds form between a slightly positive hydrogen
atom and a slightly negative atom (like oxygen or nitrogen). They
provide structural stability to DNA and proteins and give water its
unique properties (cohesion/surface tension).
Chapter 3: Cell Structure
3. Which organelle is considered the "powerhouse" of the cell and
contains its own DNA?
A) Rough Endoplasmic Reticulum
B) Golgi Apparatus
C) Lysosome
D) Mitochondrion
Answer: D
Rationale: Mitochondria are the sites of aerobic cellular respiration (ATP
production). They contain their own circular DNA (mtDNA), supporting
the endosymbiotic theory.
Chapter 4: Cellular Metabolism
4. During glycolysis, one molecule of glucose is converted into:
A) Two molecules of pyruvate
B) Two molecules of lactate
C) 36 molecules of ATP
