What do animal cells contain? 5
- nucleus
- cell membrane
- cytoplasm
- ribosomes
- mitochondria
What extra parts do plant and algal cells contain? 3
- cell wall
- chloroplasts
- vacuole
Nucleus?
Contains DNA and controls cell activities.
Cell membrane?
Controls what goes in and out of the cell.
Cytoplasm?
Where chemical reactions take place.
Mitochondria?
Produces energy from respiration.
Ribosomes?
Make proteins from amino acids.
Cell wall?
(Made from cellulose) - strengthens the cell.
Chloroplasts?
(Contains chlorophyll) - absorbs light energy to make food.
Vacuole?
Contains cell sap (sugars and salts).
What are bacterial cells made up of? 3 (C-C-C)
- cytoplasm
- cell membrane
- cell wall
Genes in a bacterial cell?
Not in a distinct nucleus (there is a loop of DNA called plasmids).
What is yeast?
A single-celled organism.
What do yeast cells contain?
All the features of an animal cell + cell wall.
How are sperms specialised? 2
- lots of mitochondria
* a tail to swim to the egg
How are root hair cell’s specialised?
Hair-like structure to increase surface area to absorb more water and minerals.
How are red blood cells specialised? 2
- special shape to give it a large surface area to carry more oxygen
- no nucleus so more space to carry oxygen
