IB DP Biology Mock Exam SL Paper 2 Set 2 - 2025 Syllabus
IB DP Biology Mock Exam SL Paper 2 Set 2
Prepare for the IB DP Biology Exam with our comprehensive IB DP Biology Exam Mock Exam SL Paper 2 Set 2. Test your knowledge and understanding of key concepts with challenging questions covering all essential topics. Identify areas for improvement and boost your confidence for the real exam
Question
An oval-shaped stem cell cluster is shown in the micrograph.
(a) State the main characteristic of stem cells.
(b) Calculate the maximum diameter of the stem cell cluster on the micrograph, showing your working and giving the units.
(c) State one therapeutic role of stem cells.
(d) Discuss how the use of stem cells to treat hereditary diseases could affect the person who received the treatment and their progeny.
Answer/Explanation
Ans:
a)
undifferentiated/pluripotent/ability to divide/differentiate into any types of cells/differentiate along different pathways;
b)
a. correct formula: 1.1cm = 500 μm, 2.7cm = length, \(\frac{2.7×500}{
1.1}\)= Xμm;
b. correct answer with unit: 1227μm;
c) treatment of Stargardt’s disease/leukemia/diabetes/heart disease/Parkinson’s disease;
d)
a. could improve quality/length of life of the treated person;
b. disease could still be passed on to progeny if defective gene/allele in gametes is not