cell structure

• a unicellular organism has one single cell
• what are the key features of an animal cell?

  cell membrane, nucleus, ribosomes, mitochondria, cytoplasm
• what are the key features of a plant cell?

  Cell wall, chloroplasts, vacuole, cytoplasm, ribosomes, nucleus, cell membrane
• what are the key features of a fungal cell?

  cell wall, cell membrane, vacuole, cytoplasm, mitochondria, ribosome, nucleus
• what are the key features of a bacterial cell?

  cell membrane, plasmids, cytoplasm, chromosome, ribosome, cell wall
• what is the function of the cell membrane?

  selectively permeable and controls the entry and exit of materials into and out of the cell
• what is the function of the nucleus?


   Contains the hereditary genetic information (DNA) and controls some cell functions.
• what is the function of the cell wall?

   Provides structure and support to the cell. Made of cellulose in plants but other substances in fungal and bacterial cells.
• what does the cytoplasm do?

  sit of chemical reactions
• what does the vacuole do?

  Contains cell sap, stores water, sugars and salts.
• what is the function of ribosomes?


  Protein synthesis
• what is the function of the mitochondria?

  Site of aerobic respiration to provide energy to the cell.
• what is the function of chloroplast?

   Contains chlorophyll and is the site of Photosynthesis
• what is a plasmid?


  a small circular ring of DNA
• how are bacterial cells different to other cells?

  they lack membrane bound organelles (e.g. nuclei and mitochondria)
• what are plant cell walls made of ?

  cellulose