SPECIALISED STRUCTURES THAT ALLOW A SPERM TO CARRY OUT ITS ROLE A sperm cell consists of a head, middle and tail. The head contains the DNA, which is in the nucleus, this contains the 23 chromosomes r
SPECIALISED STRUCTURES THAT ALLOW A SPERM TO CARRY OUT ITS ROLE A sperm cell consists of a head, middle and tail. The head contains the DNA, which is in the nucleus, this contains the 23 chromosomes r
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SPECIALISED STRUCTURES THAT ALLOW A SPERM TO CARRY OUT ITS ROLE
A sperm cell consists of a head, middle and tail. The head contains the DNA, which is in the nucleus, this contains the 23 chromosomes required to meet with an egg which has the other 23 chromosomes needed to create an embryo. The head also contains an acrosome which contains enzymes that allow the sperm to break through the egg membrane and penetrate. The middle of the sperm cell is a bit like an engine, the mitochondria creates the energy needed to move the tail. The tail is thin and uses a whipping motion to travel through bodily fluids. (BBC-GCSE Bitesize. (2014). The menstrual cycle and fertilization. Available: http://www.bbc.co.uk/schools/gcsebitesize/science/triple_edexcel/control_systems/menstrual_cycle_fertilisation/revision/3/. Last accessed 10/11/2014)
Specialized structures that allow a red blood cell to carry out its role
A red blood cells shape, flexibility and size play a big part in its role. It is bi-concave which gives a big surface area to allow quick diffusion of oxygen. Its small size and flexibility helps it to travel unharmed through narrow capillaries and travel easily through the body. It doesn’t require a nucleus which means it has more room to carry oxygen, allowing it to carry out its role of transporting oxygen