The diagram shows a yeast cell - Edexcel - GCSE Biology - Question 1 - 2016 - Paper 1

Bacterial cells differ from yeast cells in several important ways:

1. Cell Structure: Bacterial cells generally contain plasmids, which are small circular DNA molecules that are not present in yeast cells.

2. Nucleus: Unlike yeast cells, which have a defined nucleus containing their genetic material, bacterial cells do not contain a nucleus. Instead, their DNA is found in a region called the nucleoid.

3. Cell Wall: The composition of the cell wall in bacterial cells can vary significantly, whereas yeast cells typically have a cell wall made of chitin.

4. Flagella: Many bacterial cells have flagella, which are long hair-like structures used for movement, while yeast cells typically do not have flagella.

5. Mitochondria: Bacterial cells lack mitochondria, as they primarily generate energy through processes associated with their cell membrane.