A human begins life as a single fertilised egg cell. An adult human contains more than 200 different types of specialised cell.
A gardener can grow a whole new plant from one small piece cut from the stem of an adult plant.
A doctor cannot grow a whole new human from a small piece of skin cut from an adult.
Explain the importance of cell differentiation in the development of a human from a fertilised egg.
In your answer, explain why a whole new plant can be grown from a piece of an adult plant but a whole new human cannot be grown from a piece of adult skin.
139 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.