How are red blood cells well adapted to their function?

Firstly red blood cells have very few organelles, losing many of them such as the nucleus in order to maximise the amount of haemoglobin they can hold. Furthermore they are relitavely thin meaning they have a high surface area to volume ratio so that they can maximise oxygen absorption. Finally red blood cells have a biconcaved shape making them more flexible so that they can squeeze through the smaller blood vessels such as the capillaries and carry oxygen to the extrimities of the body.

AT

Related Biology A Level answers

All answers ▸

Over-watering a plant can result in the soil around a plant's roots becoming saturated with water, reducing the amount of oxygen available to the roots. Using your knowledge of aerobic and anaerobic respiration, explain how over-watering can kill a plant.


What are the different protein structures?


The genetic code is described as being degenerate. What does this mean? and why ?


State 3 organelles found in a Eukaryotic cell and the functions of each organelle.