General Biology BIO101 Quiz 3 2026 UPDATE |Fortis 2026 Update • Verified Answers
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
General Biology BIO101 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 Quiz 3 2026 UPDATE |Fortis 2026 Update • Verified Answers
Questions & Verified Answers
1. Which organelle is often referred to as the powerhouse of the cell because it generates ATP?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Endoplasmic reticulum
Answer: B
Rationale: The mitochondria are responsible for cellular respiration, which converts nutrients into energy
(ATP). This is an important clinical concept because selecting the correct answer (B) requires understanding
both the pathophysiology and the practical nursing implications. Recognizing this principle allows the nurse to
prioritize care, anticipate complications, and provide accurate patient education.
2. What is the primary function of the ribosomes within a cell?
A. DNA replication
B. Lipid synthesis
C. Waste disposal
D. Protein synthesis
Answer: D
Rationale: Ribosomes are the cellular structures where translation occurs, linking amino acids into proteins.
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 process results in four genetically diverse haploid daughter cells?
A. Mitosis
B. Binary fission
C. Meiosis
D. Cytokinesis
Answer: C
Rationale: Meiosis involves two rounds of division to produce gametes with half the chromosome number of
the parent 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.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, General Biology BIO101 Quiz 3 2026 UPDATE |Fortis 2026 Update • Verified Answers
4. In DNA replication, which enzyme is responsible for unwinding the double helix?
A. DNA Polymerase
B. Ligase
C. Primase
D. Helicase
Answer: D
Rationale: Helicase breaks the hydrogen bonds between the nitrogenous bases to separate the DNA strands.
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 (D) requires
understanding both the pathophysiology and the practical nursing implications.
5. Which nitrogenous base is found in RNA but replaced by thymine in DNA?
A. Cytosine
B. Uracil
C. Guanine
D. Adenine
Answer: B
Rationale: RNA uses Uracil (U) to pair with Adenine, whereas DNA uses Thymine (T). 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. During which phase of the cell cycle is the DNA replicated?
A. S phase
B. G1 phase
C. G2 phase
D. M phase
Answer: A
Rationale: The S (Synthesis) phase is the specific part of interphase where DNA is duplicated. 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.
Exam (Elaborations) • Actual Questions & Rationales Page 3
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
General Biology BIO101 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 Quiz 3 2026 UPDATE |Fortis 2026 Update • Verified Answers
Questions & Verified Answers
1. Which organelle is often referred to as the powerhouse of the cell because it generates ATP?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Endoplasmic reticulum
Answer: B
Rationale: The mitochondria are responsible for cellular respiration, which converts nutrients into energy
(ATP). This is an important clinical concept because selecting the correct answer (B) requires understanding
both the pathophysiology and the practical nursing implications. Recognizing this principle allows the nurse to
prioritize care, anticipate complications, and provide accurate patient education.
2. What is the primary function of the ribosomes within a cell?
A. DNA replication
B. Lipid synthesis
C. Waste disposal
D. Protein synthesis
Answer: D
Rationale: Ribosomes are the cellular structures where translation occurs, linking amino acids into proteins.
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 process results in four genetically diverse haploid daughter cells?
A. Mitosis
B. Binary fission
C. Meiosis
D. Cytokinesis
Answer: C
Rationale: Meiosis involves two rounds of division to produce gametes with half the chromosome number of
the parent 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.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, General Biology BIO101 Quiz 3 2026 UPDATE |Fortis 2026 Update • Verified Answers
4. In DNA replication, which enzyme is responsible for unwinding the double helix?
A. DNA Polymerase
B. Ligase
C. Primase
D. Helicase
Answer: D
Rationale: Helicase breaks the hydrogen bonds between the nitrogenous bases to separate the DNA strands.
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 (D) requires
understanding both the pathophysiology and the practical nursing implications.
5. Which nitrogenous base is found in RNA but replaced by thymine in DNA?
A. Cytosine
B. Uracil
C. Guanine
D. Adenine
Answer: B
Rationale: RNA uses Uracil (U) to pair with Adenine, whereas DNA uses Thymine (T). 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. During which phase of the cell cycle is the DNA replicated?
A. S phase
B. G1 phase
C. G2 phase
D. M phase
Answer: A
Rationale: The S (Synthesis) phase is the specific part of interphase where DNA is duplicated. 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.
Exam (Elaborations) • Actual Questions & Rationales Page 3
