B1.1.2 - Bacterial Cells Flashcards
What are bacteria?
Smallest living organism and always unicellular.
Mrs Gren
M - Movement
R - Reproduction
S - Sensitivity
G - Growth
R - Respiration
E - Excretion
N - Nutrition
What do ALL prokaryotic cells have?
Cell wall
Cell membrane
Genetic material
(Mostly) Cytoplasm
What are the extra sub cellular structures in some bacterial cells?
- Flagella
- Pili
- Slime Capsule
- Plasmid
Define: Flagella
Tail like structures that help it to move through liquids
Define: Pili
Tiny hairlike structures that allows the cell to attach to structures and used to transfer DnA between bacteria
Define: Slime Capsule
A layer outside the cell wall and helps to stick to smooth surfaces
Define: Plasmid
A circular bit of DNA or genetic material that stores extra genes