General Biology BIO101 - Comprehensive Quiz 3 2026 UPDA… 2026 Update • Verified Answers
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
General Biology BIO101 - Comprehensive Quiz 3
2026 UPDATE |Fortis
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
Exam (Elaborations) • Actual Questions & Rationales Page 1
,General Biology BIO101 - Comprehensive Quiz 3 2026 UPDA… 2026 Update • Verified Answers
Questions & Verified Answers
1. Which organelle is primarily responsible for the synthesis of lipids and the detoxification of
harmful substances?
A. Smooth Endoplasmic Reticulum
B. Rough Endoplasmic Reticulum
C. Golgi Apparatus
D. Lysosome
Answer: A
Rationale: The Smooth ER is involved in lipid synthesis, carbohydrate metabolism, and detoxification, whereas
the Rough ER is primarily for protein synthesis. Exam questions often test the ability to distinguish this concept
from closely related distractors, making a clear rationale essential for mastery. Applying this knowledge in
clinical settings supports safe, evidence-based practice and improves patient outcomes.
2. In which stage of the cell cycle does DNA replication occur?
A. G1 Phase
B. G2 Phase
C. S Phase
D. M Phase
Answer: C
Rationale: DNA replication occurs during the Synthesis (S) phase of interphase to ensure each daughter cell
receives a copy of the genome. Exam questions often test the ability to distinguish this concept from closely
related distractors, making a clear rationale essential for mastery. Applying this knowledge in clinical settings
supports safe, evidence-based practice and improves patient outcomes.
3. Which of the following best describes the function of an enzyme?
A. Increasing the activation energy of a reaction
B. Lowering the activation energy to speed up a reaction
C. Changing the final equilibrium of a chemical reaction
D. Providing the energy needed for endergonic reactions
Answer: B
Rationale: Enzymes act as biological catalysts by lowering the activation energy barrier, allowing reactions to
proceed faster at body temperature. Applying this knowledge in clinical settings supports safe, evidence-based
practice and improves patient outcomes. This is an important clinical concept because selecting the correct
answer (B) requires understanding both the pathophysiology and the practical nursing implications.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, General Biology BIO101 - Comprehensive Quiz 3 2026 UPDA… 2026 Update • Verified Answers
4. What is the primary net yield of ATP molecules produced during glycolysis from one
molecule of glucose?
A. 4 ATP
B. 2 ATP
C. 32 ATP
D. 36 ATP
Answer: B
Rationale: Although 4 ATP are produced in glycolysis, 2 ATP are consumed in the investment phase, resulting
in a net gain of 2 ATP. Exam questions often test the ability to distinguish this concept from closely related
distractors, making a clear rationale essential for mastery. Applying this knowledge in clinical settings supports
safe, evidence-based practice and improves patient outcomes.
5. During which phase of mitosis do sister chromatids separate and move toward opposite
poles?
A. Prophase
B. Metaphase
C. Telophase
D. Anaphase
Answer: D
Rationale: Anaphase is characterized by the separation of sister chromatids and their migration to opposite
ends of the cell. Recognizing this principle allows the nurse to prioritize care, anticipate complications, and
provide accurate patient education. Exam questions often test the ability to distinguish this concept from closely
related distractors, making a clear rationale essential for mastery.
6. Which component of the plasma membrane is responsible for maintaining its fluidity at low
temperatures?
A. Cholesterol
B. Integral proteins
C. Phospholipids
D. Glycolipids
Answer: A
Rationale: Cholesterol acts as a temperature buffer, preventing the membrane from becoming too rigid at low
temperatures. Recognizing this principle allows the nurse to prioritize care, anticipate complications, and
provide accurate patient education. Exam questions often test the ability to distinguish this concept from closely
related distractors, making a clear rationale essential for mastery.
Exam (Elaborations) • Actual Questions & Rationales Page 3
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
General Biology BIO101 - Comprehensive Quiz 3
2026 UPDATE |Fortis
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
Exam (Elaborations) • Actual Questions & Rationales Page 1
,General Biology BIO101 - Comprehensive Quiz 3 2026 UPDA… 2026 Update • Verified Answers
Questions & Verified Answers
1. Which organelle is primarily responsible for the synthesis of lipids and the detoxification of
harmful substances?
A. Smooth Endoplasmic Reticulum
B. Rough Endoplasmic Reticulum
C. Golgi Apparatus
D. Lysosome
Answer: A
Rationale: The Smooth ER is involved in lipid synthesis, carbohydrate metabolism, and detoxification, whereas
the Rough ER is primarily for protein synthesis. Exam questions often test the ability to distinguish this concept
from closely related distractors, making a clear rationale essential for mastery. Applying this knowledge in
clinical settings supports safe, evidence-based practice and improves patient outcomes.
2. In which stage of the cell cycle does DNA replication occur?
A. G1 Phase
B. G2 Phase
C. S Phase
D. M Phase
Answer: C
Rationale: DNA replication occurs during the Synthesis (S) phase of interphase to ensure each daughter cell
receives a copy of the genome. Exam questions often test the ability to distinguish this concept from closely
related distractors, making a clear rationale essential for mastery. Applying this knowledge in clinical settings
supports safe, evidence-based practice and improves patient outcomes.
3. Which of the following best describes the function of an enzyme?
A. Increasing the activation energy of a reaction
B. Lowering the activation energy to speed up a reaction
C. Changing the final equilibrium of a chemical reaction
D. Providing the energy needed for endergonic reactions
Answer: B
Rationale: Enzymes act as biological catalysts by lowering the activation energy barrier, allowing reactions to
proceed faster at body temperature. Applying this knowledge in clinical settings supports safe, evidence-based
practice and improves patient outcomes. This is an important clinical concept because selecting the correct
answer (B) requires understanding both the pathophysiology and the practical nursing implications.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, General Biology BIO101 - Comprehensive Quiz 3 2026 UPDA… 2026 Update • Verified Answers
4. What is the primary net yield of ATP molecules produced during glycolysis from one
molecule of glucose?
A. 4 ATP
B. 2 ATP
C. 32 ATP
D. 36 ATP
Answer: B
Rationale: Although 4 ATP are produced in glycolysis, 2 ATP are consumed in the investment phase, resulting
in a net gain of 2 ATP. Exam questions often test the ability to distinguish this concept from closely related
distractors, making a clear rationale essential for mastery. Applying this knowledge in clinical settings supports
safe, evidence-based practice and improves patient outcomes.
5. During which phase of mitosis do sister chromatids separate and move toward opposite
poles?
A. Prophase
B. Metaphase
C. Telophase
D. Anaphase
Answer: D
Rationale: Anaphase is characterized by the separation of sister chromatids and their migration to opposite
ends of the cell. Recognizing this principle allows the nurse to prioritize care, anticipate complications, and
provide accurate patient education. Exam questions often test the ability to distinguish this concept from closely
related distractors, making a clear rationale essential for mastery.
6. Which component of the plasma membrane is responsible for maintaining its fluidity at low
temperatures?
A. Cholesterol
B. Integral proteins
C. Phospholipids
D. Glycolipids
Answer: A
Rationale: Cholesterol acts as a temperature buffer, preventing the membrane from becoming too rigid at low
temperatures. Recognizing this principle allows the nurse to prioritize care, anticipate complications, and
provide accurate patient education. Exam questions often test the ability to distinguish this concept from closely
related distractors, making a clear rationale essential for mastery.
Exam (Elaborations) • Actual Questions & Rationales Page 3
