Adaptation of specialised cells

• Red blood cells has no nucleus


  Allows cell to carry more haemoglobin and hence more oxygen
• Red blood cells contains haemoglobin


  combines with oxygen to form oxyhemoglobin which carries oxygen to the rest of the body
• Red blood cells has a circular biconcave shape 


  Increases surface area to volume ratio of cell for diffusion of oxygen into and out of the cell at an efficient rate
• The root hair cell has a long and narrow protrusion called hair root


  -Increases surface area to volume ratio of cell so that water and mineral salts can be efficiently absorbed from the soil
• The sperm cell has acrosome


  an acrosome a vacuole that contains enzymes to help male sperm penetrate female egg
• The sperm call has high concentration of mitochondria in middle section


  This helps to release energy to filament to beat around with, hence propelling cell towards egg