BIOL 251 — Human Anatomy & Physiology I with Lab
2026 Original Final-Exam Study Assessment • 100 Questions
• Answer Key & Rationales
Important: This is an original study assessment aligned to the published August 2026 BIOL 251 syllabus. It is not
Portage Learning's actual final exam and does not reproduce live/proctored exam questions or answers. The
illustrations are original educational schematics rather than Portage photographs.
Coverage
Modules 1–9: anatomy & physiology, tissues/skin, bones, articulations, skeletal muscle, CNS, PNS/ANS, special senses, and endocrine
physiology.
,Module 1 — Introduction to Anatomy & Physiology
1. Which term describes the study of body structure?
A. Physiology
B. Anatomy
C. Pathology
D. Histology
2. Which sequence correctly represents levels of structural organization from simplest to most complex?
A. Organ → tissue → cell → organ system
B. Cell → tissue → organ → organ system
C. Tissue → cell → organ → organism
D. Cell → organ → tissue → organ system
3. Which plane divides the body into equal left and right portions?
A. Frontal
B. Transverse
,C. Midsagittal
D. Oblique
4. Which is an example of negative feedback?
A. Platelet aggregation
B. Labor contractions
C. Blood glucose returning toward a set point
D. A cascade that amplifies clot formation
5. What happens to an animal cell placed in a hypotonic solution?
A. Water tends to enter the cell
B. Water tends to leave the cell
C. No water movement occurs
D. Solutes are actively pumped out only
6. Which organelle is the main site of ATP production during aerobic metabolism?
A. Ribosome
, B. Mitochondrion
C. Golgi apparatus
D. Lysosome
7. Which transport process requires ATP directly?
A. Simple diffusion
B. Osmosis
C. Facilitated diffusion
D. Primary active transport
8. Which bond is formed when atoms share electrons?
A. Ionic
B. Hydrogen
C. Covalent
D. Peptide only
9. Which statement best describes homeostasis?
2026 Original Final-Exam Study Assessment • 100 Questions
• Answer Key & Rationales
Important: This is an original study assessment aligned to the published August 2026 BIOL 251 syllabus. It is not
Portage Learning's actual final exam and does not reproduce live/proctored exam questions or answers. The
illustrations are original educational schematics rather than Portage photographs.
Coverage
Modules 1–9: anatomy & physiology, tissues/skin, bones, articulations, skeletal muscle, CNS, PNS/ANS, special senses, and endocrine
physiology.
,Module 1 — Introduction to Anatomy & Physiology
1. Which term describes the study of body structure?
A. Physiology
B. Anatomy
C. Pathology
D. Histology
2. Which sequence correctly represents levels of structural organization from simplest to most complex?
A. Organ → tissue → cell → organ system
B. Cell → tissue → organ → organ system
C. Tissue → cell → organ → organism
D. Cell → organ → tissue → organ system
3. Which plane divides the body into equal left and right portions?
A. Frontal
B. Transverse
,C. Midsagittal
D. Oblique
4. Which is an example of negative feedback?
A. Platelet aggregation
B. Labor contractions
C. Blood glucose returning toward a set point
D. A cascade that amplifies clot formation
5. What happens to an animal cell placed in a hypotonic solution?
A. Water tends to enter the cell
B. Water tends to leave the cell
C. No water movement occurs
D. Solutes are actively pumped out only
6. Which organelle is the main site of ATP production during aerobic metabolism?
A. Ribosome
, B. Mitochondrion
C. Golgi apparatus
D. Lysosome
7. Which transport process requires ATP directly?
A. Simple diffusion
B. Osmosis
C. Facilitated diffusion
D. Primary active transport
8. Which bond is formed when atoms share electrons?
A. Ionic
B. Hydrogen
C. Covalent
D. Peptide only
9. Which statement best describes homeostasis?
