Biology Unit 2 AQA GCSE

Animal cells usually have five basic parts. These parts are...

• Plasma membrane - This is used to keep the cell together and also has control over what can diffuse in and out.
• Cytoplasm - This is where most chemical reactions take place.
• Nucleus - This contains genetic material and it controls the cell, but it is not the cells brain.
• Mitochondria - This is where respiration takes place.
• Ribosomes - Where proteins are produced.

Plant cells also contain what animal cells contain but they also have...

• A rigid cell wall - to stop the plant cell swelling up and bursting
• Chloroplasts - Which absorbs light energy in order to produce glucose.
• A permanent vacoule filled with cell sap.