A person cuts their skin.
Stem cells in the skin help to repair the damage.
Which statement describes what happens?
The stem cells differentiate first, then divide by meiosis to form skin cells.
The stem cells divide by mitosis, then the new cells differentiate into skin cells.
The stem cells divide by meiosis, then the new cells all stay as stem cells.
The skin cells divide by mitosis, then the new cells turn back into stem cells.
194 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.