cell structure

• nucleus

  • contains genetic information that controls the functions of the cell
  • in plant and animal cells
• cell membrane

  • controls what enters and leaves the cell
  • in animal, plant and bacterial cells
• cytoplasm

  • where many cell activities and chemical reactions within the cell occur
  • in plant, animal and bacterial cells
• mitochondria

  • provides energy from aerobic respiration
  • in animal and plant cells
• ribosome

  • synthesises (makes) proteins
  • in plant, animal and bacterial cells
• chloroplast

  • where photosynthesis occurs
  • in only plant cells
• permanent vacuole

  • used to store water and other chemicals as cell sap
  • in only plant cells
• cell wall

  • strengthens and supports the cell (made of cellulose in plants)
  • in plant and bacterial cells
• DNA loop

  • a loop of DNA not enclosed within a nucleus
  • only in bacterial cell
• plasmid

  • a small circle of DNA may contain genes associated with antibiotic resistance
  • only in bacterial cells