Red Blood Cells
Contain haemoglobin to carry oxygen to cells.
- No nucleus. - so whole cell is full of haemoglobin.
- Biconcave shape. - flexible to squeeze through small capillaries.
- Large surface area. - allows more oxygen to be absorbed efficiently.
- Thin outer membrane. - lets oxygen diffuse through easily.
Nerve Cell (Neurone)
Transmit & store information.
- Long. - to extend from where they located to where they transmit information to.
- Axon surrounded by myelin sheath. - insulates the cell and speeds up the transmission of information.
White Blood Cells
Engulf & destroy bacteria/Fight disease.
- Cytoplasm can flow. - so cell can change shape, surround and engulf bacteria.
- Can change shape. - to squeeze out of blood vessels & get to location of infection.
Ciliated Windpipe Cells
Keep trachea clear of dust etc.
- Tiny hairs that move from side to side. - move dust/dirt to back of throat to be swallowed.
Fertilise egg cells.
- Middle section packed with mitochondria. - provides energy to reach the egg cell.
- Powerful tail. - to help swim to the egg cell.
Root Hair Cells
Absorb water & mineral ions from the soil.
- Large surface area. - enables cell to efficiently absorb water & mineral ions.
Carry water & mineral ions up stem.
- Hollow. - to carry the water & mineral ions.
- Narrow. - easier for the water to be transported upwards.
Palisade Cell (Leaf Cell)
Absorbs light energy for photosynthesis.
- Packed chloroplasts which contain chlorophyll. - to capture light energy.