(1.1) specialised cells

Sperm cell unusual feature

Tail or flagellum which allows it to swim to the egg for fertilization and

lots of mitochondria which provides energy for swimming

Egg cell unusual feature

Large cytoplasm which stores nutrients for early embryo development

haploid nucleus which contains one set of chromosomes

Ciliated epithelial cell unusual feature

Cilia which move mucus and

trapped particles along surfaces for example in airways

Red blood cell unusual feature

Biconcave shape which increases surface area for oxygen absorption and

no nucleus which allows more room for hemoglobin

Nerve cell unusual feature

Long axon which transmits electrical impulses over long distances and

dendrites which receive signals from other neurons

Root hair cell unusual feature

Hair like projection which increases surface area to absorb water and minerals from soil

Muscle cell unusual feature

Many mitochondria which provides energy for contraction and elongated shape which allows the cell to contract efficiently