A student compares a leaf cell, a human cheek cell and a bacterial cell.
The Table shows some of the structures found in each cell.
Table
| Structure | Leaf cell | Cheek cell | Bacterial cell |
|---|---|---|---|
| cell membrane | present | present | present |
| ribosomes | present | present | present |
| nucleus | present | present | absent |
| chloroplasts | present | absent | absent |
| plasmids | absent | absent | present |
Give the name of the structure in the Table that is the site of protein synthesis.
Describe two functions of the cell membrane.
The bacterial cell does not have a nucleus.
Describe how the genetic material is found in the bacterial cell.
Explain why the leaf cell contains chloroplasts but the cheek cell does not.
130 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.