topic 1 - cells

• The nucleus contains the genetic material (DNA) that controls all cell activities.
• Whats the difference between prokaryotic and eukaryotic cells?

  Prokaryotic,simpler and smaller,bacteria. Eukaryotic,more complex, plant and animal cells
• Cytoplasm 


  gel like substance where most chemical reactions take place
• Cell membrane 


  Controls what enters and exits and holds the cell together
• Mitochondria

  Where most aerobic respiration takes place
• Ribosomes 


  Where proteins are made in the cell
• Rigid cell wall

  Made of cellulose and supports and strengthens the cell
• Permanent vacuole 


  Contains cell sap (weak solution of sugars and salts)
• Chloroplast 


  green substance called chlorophyll where light is absorbed to carry out photosynthesis
• plasmid 


  rings of dna in bacteria cells
• singular circular strand of dna 


  Bacterias nucleus that floats freely in the cytoplasm