b1.2 animal and plant cells

• what is the length of an animal cell?

  10-30 micrometers
• what is the role of the nucleus?

  • controls the activities of the cell, contains genetic material
• what is the role of the cytoplasm?

  • liquid gel that fills the cell
  • where most of the chemical reactions take place
• what is the cell membrane and its role?

  • protective barrier around the outside of the cell
  • controls the movement of substances out of the cell
• what is the role of the mitochondira?

  • where aerobic respiration happens
  • releasing energy for the cell
• what is the role of ribosomes?

  • where protein synthesis takes place
• which cells are bigger?

  plant
• what do plant cells have that animal cells do not?

  • chloroplasts
  • cell wall
  • permanent vacuole
• what is the role of the cell wall?

  supports and strengthens the cell
• what is the role of chloroplasts?

  • contain chlorophyll
  • absorbs light to carry out photosynthesis
  • so make glucose
• what is the role of the permanent vacuole?

  • filled with cell sap
  • keeps the cell rigid to support the plant
• what is a cell?

  the smallest unit of life that can live on its own. cells make up living organisms and their tissues