PEAZIT Aha card
Go straight to resources ↓The cell: a small unit with shared jobs
A cell is a basic structural and functional unit of life. Its structures work together; the membrane separates inside from outside and regulates exchange.
| Structure | Main role |
|---|---|
| Membrane | Boundary and regulated exchange |
| Cytoplasm | Location of many cellular processes |
| Nucleus | Holds most of the DNA |
| Mitochondria | Contribute to cellular respiration and ATP production |
One worked example
- An animal cell has a membrane.A membrane is not the same as a cell wall.
- A plant cell also has a membrane.It also has a cell wall outside the membrane.
- Cells in green plant parts usually have chloroplasts.Photosynthesis occurs there.
Watch out: Not every cell has a nucleus. Bacteria lack a membrane-bound nucleus, and not all plant cells have chloroplasts.
Goal, prerequisites and card origin
What you will learn: Match cell structures with their basic functions.
What you need first: Distinguish a living organism from a non-living object.
An original PEAZIT working card. Independent expert review and effectiveness testing have not yet taken place. · v1
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A cell is a basic structural and functional unit of life. Its structures work together; the membrane separates inside from outside and regulates exchange.