Specialised Cells

Specialised Cells

1. Leaf Cell

   • Function - Absorbs light energy for photosynthesis
   • Adaption
     • Packed with chloroplasts
     • Regular shaped
     • Closely packed cells form a continuous layer for afficient absorption of sunlight

2. Root Hair Cell

   • Function - Absorbs water and mineral ions from the soil
   • Adaption
     • Long 'finger-like' process with very thin wall, which gives a large surface area

3. Sperm Cell

   • Function - Fertilises an egg cell - female gamete
   • Adaption
     • Head contains genetic information and an enzyme help to penetrate the egg cell membrane
     • Middle section is packed with mitochondria for energy
     • The tail moves the sperm to the egg

4. Red Blood Cell

   • Function - Contains haemoglobin to carry oxygen to the cells
   • Adaption
     • Thin outer membrane to let oxygen diffuse through easily
     • Shape increases the surface area to allow more oxgyen to be abdorbed efficiently
     • No nucleus, so the whole cell is full of haemoglobin