After a heart attack, some of a patient's heart muscle cells die. Doctors are testing a treatment in which stem cells taken from the patient's own bone marrow are injected into the damaged part of the heart.
Suggest how the injected stem cells could improve the working of the patient's heart.
Explain why using stem cells from the patient's own bone marrow reduces the risk that the treatment fails.
Suggest one reason why adult stem cells from bone marrow may be less useful for this treatment than stem cells from an embryo.
63 exam-style questions on AQA GCSE Biology 1.2 Cell division, covering 1.2.1 Chromosomes, 1.2.2 Mitosis and the cell cycle, and 1.2.3 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.