BIOD 331/ BIOD331 Final Exam: (NEW 2025/ 2026 Update)
Pathophysiology | Questions & Answers| Grade A| 100% Correct
(Verified Solutions)- Portage Learning
1. What organelle is responsible for ATP production?
→ Mitochondria
2. Which cell membrane component is primarily responsible for
maintaining fluidity?
→ Phospholipids
3. Define homeostasis.
→ The maintenance of a stable internal environment despite external
changes.
4. Which feedback mechanism amplifies a response?
→ Positive feedback
5. Example of positive feedback in the human body:
→ Oxytocin release during childbirth
6. Which phase of the cell cycle involves DNA replication?
→ S phase
7. What is the main function of the G2 checkpoint?
→ To verify DNA integrity before mitosis
8. Define apoptosis.
→ Programmed cell death
9. What gene is commonly mutated in cancer and acts as a tumor
suppressor?
→ TP53
10. Name a hallmark of cancer.
→ Sustained proliferative signaling
11. Difference between benign and malignant tumors?
→ Benign: localized; Malignant: invasive and can metastasize
12. What suffix is used for benign tumors of glandular origin?
→ -adenoma
Pathophysiology | Questions & Answers| Grade A| 100% Correct
(Verified Solutions)- Portage Learning
1. What organelle is responsible for ATP production?
→ Mitochondria
2. Which cell membrane component is primarily responsible for
maintaining fluidity?
→ Phospholipids
3. Define homeostasis.
→ The maintenance of a stable internal environment despite external
changes.
4. Which feedback mechanism amplifies a response?
→ Positive feedback
5. Example of positive feedback in the human body:
→ Oxytocin release during childbirth
6. Which phase of the cell cycle involves DNA replication?
→ S phase
7. What is the main function of the G2 checkpoint?
→ To verify DNA integrity before mitosis
8. Define apoptosis.
→ Programmed cell death
9. What gene is commonly mutated in cancer and acts as a tumor
suppressor?
→ TP53
10. Name a hallmark of cancer.
→ Sustained proliferative signaling
11. Difference between benign and malignant tumors?
→ Benign: localized; Malignant: invasive and can metastasize
12. What suffix is used for benign tumors of glandular origin?
→ -adenoma
