IB Biology SL B2.3.2 Properties of Stem Cells Questions

Explore how stem cells divide repeatedly while undifferentiated and retain the potency to form mature specialized cells in IB Biology SL B2.3.2.

Exam points

Explain that stem cells self-renew by repeated division while remaining undifferentiated.
Explain potency as the capacity of a stem cell to differentiate into mature specialized cell types.

[Maximum number: 3]

Outline reasons for the therapeutic use of stem cells.

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a	unspecialized/undifferentiated stem cells can divide / differentiate along different pathways;
b	(stem cells are accessible as they) come from embryos/bone marrow/umbilical cord blood/adult tissue;
c	(stem cells) can regenerate/repair diseased/damaged tissues in people;
d	valid specific example;
e	drugs can be tested on stem cells (in laboratories to see if they are harmful);