AQA GCSE BIOLOGY UNIT 2 - ANIMAL AND PLANT CELLS

Animals and plant cells

Cells

• Cells are the smallest unit of life
• All living things are made up of cells
• Most human cells, like most other animal cells, have the following parts:
  • Nucleus
  • Cytoplasm
  • Cell membrane
  • Mitochondria
  • Ribosomes
• Plant cells also have:
  • Cell wall
  • Chloroplasts
  • Permanent vacuole

What do these structures do?

• Nucleus - controls the activities of the cell
• Cytoplasm - where most of the chemical reactions take place
• Cell membrane - controls the passage of substances in and out of the cell
• Mitochondria - where most energy is released in respiration
• Ribosomes…