BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 2026/2027 | Page 1 | Passing Score: 80%
BIOLOGY DEPARTMENT
BIO 201- MIDTERM EXAM STUDY GUIDE
QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027
HUMAN ANATOMY & PHYSIOLOGY I . Official Exam 2026/2027
75 80% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cell Biology and Histology Q1-Q15
Section 2 Integumentary System Q16-Q30
Section 3 Skeletal System Q31-Q45
Section 4 Muscular System Q46-Q60
Section 5 Nervous System Q61-Q75
Instructions: Select the single best answer for each question. This exam is designed for BIO 201 Human Anatomy &
Physiology I midterm exam preparation. Passing score: 80% (60 questions correct).
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 1 of 0
,SECTION 1 | Cell Biology and Histology | Q1-Q15 | BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT
ANSWERS!! 2026/2027 2026/2027
Q1 Question 1 of 75
A histologist examines a tissue sample under a microscope and observes cells with large, round
nuclei and scant cytoplasm. These cells are tightly packed with minimal extracellular matrix. The
tissue is most likely
A. Simple squamous epithelium
B. Dense regular connective tissue
C. Skeletal muscle tissue
D. Adipose connective tissue
Correct Answer: A
Rationale:
Simple squamous epithelium consists of tightly packed cells with scant cytoplasm and large nuclei, forming
a single layer. Dense connective tissue has abundant collagen fibers, skeletal muscle shows striations, and
adipose tissue contains lipid-filled cells with peripheral nuclei.
Q2 Question 2 of 75
A researcher stains a cell to visualize its cytoskeleton and notices a network of hollow tubes that
resist compression and serve as tracks for organelle transport. These structures are
A. Microfilaments composed of actin monomers
B. Microtubules composed of tubulin dimers
C. Intermediate filaments composed of keratin
D. Ribosomes composed of rRNA and protein
Correct Answer: B
Rationale:
Microtubules are hollow tubes made of tubulin dimers that resist compression and provide tracks for
vesicle and organelle transport. Microfilaments are thin actin strands for cell shape. Intermediate filaments
resist tension. Ribosomes are not part of the cytoskeleton.
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 2 of 0
,Q3 Question 3 of 75
A medical student examines an electron micrograph and identifies a double-membrane organelle
with inner folds called cristae. This organelle is primarily responsible for
A. Protein synthesis on membrane-bound ribosomes
B. Lipid synthesis and detoxification reactions
C. ATP production through oxidative phosphorylation
D. Packaging and sorting of secretory proteins
Correct Answer: C
Rationale:
The organelle described is the mitochondrion, whose cristae increase surface area for the electron
transport chain and ATP synthesis. Rough ER synthesizes proteins, smooth ER handles lipids and
detoxification, and the Golgi apparatus packages proteins.
Q4 Question 4 of 75
During a biopsy, a pathologist identifies a tissue with abundant extracellular matrix containing
collagen, elastin, and ground substance, with widely spaced cells. This tissue classification is
A. Epithelial tissue
B. Muscular tissue
C. Nervous tissue
D. Connective tissue proper
Correct Answer: D
Rationale:
Connective tissue is characterized by abundant extracellular matrix with widely spaced cells, unlike
epithelial tissue which is tightly packed with minimal matrix. Muscular tissue contains contractile cells, and
nervous tissue consists of neurons and glia.
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 3 of 0
, Q5 Question 5 of 75
A cell biologist treats cells with a chemical that disrupts the phospholipid bilayer of the plasma
membrane. The most immediate consequence for the cell is loss of
A. Selective permeability and membrane integrity
B. DNA replication capability
C. Ribosomal protein synthesis
D. Mitochondrial ATP production
Correct Answer: A
Rationale:
The phospholipid bilayer provides selective permeability and structural integrity to the plasma membrane.
Its disruption immediately compromises the cell's ability to regulate what enters and exits. DNA replication,
ribosome function, and mitochondrial activity are downstream effects.
Q6 Question 6 of 75
A patient presents with a genetic disorder that impairs the function of lysosomes. The most likely
cellular consequence is accumulation of
A. Newly synthesized proteins in the rough ER
B. Undigested cellular waste and macromolecules
C. Excess ATP in the mitochondrial matrix
D. Unprocessed ribosomal RNA in the nucleolus
Correct Answer: B
Rationale:
Lysosomes contain hydrolytic enzymes that break down cellular waste. Impaired lysosomal function leads
to accumulation of undigested materials. The other options describe processes in different organelles not
directly affected by lysosomal dysfunction.
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 4 of 0
BIOLOGY DEPARTMENT
BIO 201- MIDTERM EXAM STUDY GUIDE
QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027
HUMAN ANATOMY & PHYSIOLOGY I . Official Exam 2026/2027
75 80% CERTIFIED
QUESTIONS PASSING SCORE RECERTIFICATION
TABLE OF CONTENTS
Section 1 Cell Biology and Histology Q1-Q15
Section 2 Integumentary System Q16-Q30
Section 3 Skeletal System Q31-Q45
Section 4 Muscular System Q46-Q60
Section 5 Nervous System Q61-Q75
Instructions: Select the single best answer for each question. This exam is designed for BIO 201 Human Anatomy &
Physiology I midterm exam preparation. Passing score: 80% (60 questions correct).
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 1 of 0
,SECTION 1 | Cell Biology and Histology | Q1-Q15 | BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT
ANSWERS!! 2026/2027 2026/2027
Q1 Question 1 of 75
A histologist examines a tissue sample under a microscope and observes cells with large, round
nuclei and scant cytoplasm. These cells are tightly packed with minimal extracellular matrix. The
tissue is most likely
A. Simple squamous epithelium
B. Dense regular connective tissue
C. Skeletal muscle tissue
D. Adipose connective tissue
Correct Answer: A
Rationale:
Simple squamous epithelium consists of tightly packed cells with scant cytoplasm and large nuclei, forming
a single layer. Dense connective tissue has abundant collagen fibers, skeletal muscle shows striations, and
adipose tissue contains lipid-filled cells with peripheral nuclei.
Q2 Question 2 of 75
A researcher stains a cell to visualize its cytoskeleton and notices a network of hollow tubes that
resist compression and serve as tracks for organelle transport. These structures are
A. Microfilaments composed of actin monomers
B. Microtubules composed of tubulin dimers
C. Intermediate filaments composed of keratin
D. Ribosomes composed of rRNA and protein
Correct Answer: B
Rationale:
Microtubules are hollow tubes made of tubulin dimers that resist compression and provide tracks for
vesicle and organelle transport. Microfilaments are thin actin strands for cell shape. Intermediate filaments
resist tension. Ribosomes are not part of the cytoskeleton.
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 2 of 0
,Q3 Question 3 of 75
A medical student examines an electron micrograph and identifies a double-membrane organelle
with inner folds called cristae. This organelle is primarily responsible for
A. Protein synthesis on membrane-bound ribosomes
B. Lipid synthesis and detoxification reactions
C. ATP production through oxidative phosphorylation
D. Packaging and sorting of secretory proteins
Correct Answer: C
Rationale:
The organelle described is the mitochondrion, whose cristae increase surface area for the electron
transport chain and ATP synthesis. Rough ER synthesizes proteins, smooth ER handles lipids and
detoxification, and the Golgi apparatus packages proteins.
Q4 Question 4 of 75
During a biopsy, a pathologist identifies a tissue with abundant extracellular matrix containing
collagen, elastin, and ground substance, with widely spaced cells. This tissue classification is
A. Epithelial tissue
B. Muscular tissue
C. Nervous tissue
D. Connective tissue proper
Correct Answer: D
Rationale:
Connective tissue is characterized by abundant extracellular matrix with widely spaced cells, unlike
epithelial tissue which is tightly packed with minimal matrix. Muscular tissue contains contractile cells, and
nervous tissue consists of neurons and glia.
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 3 of 0
, Q5 Question 5 of 75
A cell biologist treats cells with a chemical that disrupts the phospholipid bilayer of the plasma
membrane. The most immediate consequence for the cell is loss of
A. Selective permeability and membrane integrity
B. DNA replication capability
C. Ribosomal protein synthesis
D. Mitochondrial ATP production
Correct Answer: A
Rationale:
The phospholipid bilayer provides selective permeability and structural integrity to the plasma membrane.
Its disruption immediately compromises the cell's ability to regulate what enters and exits. DNA replication,
ribosome function, and mitochondrial activity are downstream effects.
Q6 Question 6 of 75
A patient presents with a genetic disorder that impairs the function of lysosomes. The most likely
cellular consequence is accumulation of
A. Newly synthesized proteins in the rough ER
B. Undigested cellular waste and macromolecules
C. Excess ATP in the mitochondrial matrix
D. Unprocessed ribosomal RNA in the nucleolus
Correct Answer: B
Rationale:
Lysosomes contain hydrolytic enzymes that break down cellular waste. Impaired lysosomal function leads
to accumulation of undigested materials. The other options describe processes in different organelles not
directly affected by lysosomal dysfunction.
BIO 201- MIDTERM EXAM STUDY GUIDE QUESTIONS WITH 100% CORRECT ANSWERS!! 2026/2027 — 2026/2027 | Passing Score: 80% | Page 4 of 0
