Stem Cells and Regeneration Practice Questions
20 free Stem Cells and Regeneration practice questions for the USMLE Step 1, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Stem Cells and Regeneration questions
- Q1. Which of the following is a defining characteristic of a true stem cell?
- Q2. Which term best describes stem cells that can give rise to all cell types of the adult body (but not extra-embryonic tissues)?
- Q3. Which type of stem cell is most important for ongoing tissue maintenance and repair in adult organisms?
- Q4. Which of the following best describes a multipotent stem cell?
- Q5. Which of the following stem cell sources requires ethical considerations because they are derived from early embryos?
- Q6. What is the main advantage of using Induced pluripotent stem cells (iPSCs) in regenerative medicine compared to embryonic stem cells?
- Q7. Which of the following best describes the concept of a stem cell “niche”?
- Q8. Which of the following organs is well-known for containing adult stem cells that continuously regenerate tissue under normal physiologic conditions?
- Q9. Which of the following describes a major limitation of adult (somatic) stem cells compared to embryonic stem cells, in terms of potency?
- Q10. Which of the following processes describes tissue regeneration by proliferation and differentiation of stem or progenitor cells after injury?
- Q11. Which statement best reflects why some tissues (e.g., brain, heart) have poor regenerative capacity despite the presence of stem cells in the body overall?
- Q12. Which type of potency refers to the ability to differentiate into a single cell type only?
- Q13. Which of the following best describes a risk associated with uncontrolled use of pluripotent stem cells in regenerative therapy?
- Q14. In the context of regeneration, what is the meaning of the term “plasticity” with respect to adult stem cells?
- Q15. Which of the following is true about symmetric vs. asymmetric division of stem cells in a tissue niche?
- Q16. Which class of stem cells would be most suitable for generating all different cell types of a human organ in vitro (assuming appropriate conditions)?
- Q17. Which of the following scenarios exemplifies regeneration by stem cell activation rather than repair by scar (fibrosis)?
- Q18. Which of the following correctly ranks stem cell potency from most to least potent?
- Q19. Which of the following is a key challenge in using stem cells for regenerative therapies in clinical practice?
- Q20. Which statement best describes why some tissues heal primarily by fibrosis rather than regeneration despite the presence of stem or progenitor cells?