Cells and specialised cells

The idea

Animal and plant cells are eukaryotic: their DNA is in a nucleus. Bacteria are prokaryotic: they are smaller, have no nucleus, and their DNA is a single loop, often with small rings called plasmids. Plant cells also have a cellulose cell wall and often a permanent vacuole; cells that photosynthesise have chloroplasts (root hair cells do not). Cells differentiate to become specialised, such as sperm, nerve, muscle, root hair, xylem and phloem cells.

1. Name the part.
2. State its function.
3. Link the cell's structure to its job.

Watch out Bacteria do have cell walls; they lack a nucleus, not a wall.