Red Blood Cells are disk shaped with pores on either side to increase surface area to allow oxygen absorption from breathed-in air which is distributed to the cell.
Xylem Cells are dead thickened with lignin, with no end walls or contents so that they can transport water and minerals to support the plant.
Phloem cells have end wall pores allowing cytoplasm to connect, this allows the transport of products of photosynthesis.
The root hair has a long extension to increase surface area maximising water and mineral absorption to the cell.
The Skeletal muscle contains many mitochondria to provide ATP for muscle contraction to assist movement.

	Criado por Nerhys quase 11 anos atrás

contain cell variety, and absorption and secretion of materials