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What are the 4 chambers of the heart?

The 4 chambers of the heart are: Right atrium,Right ventricle,Left atrium and left ventricle.
SB
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What makes the structure of Haemoglobin good for the transport of oxygen to tissues? (3 marks)

Haemoglobin (Hb) is comprised of 4 polypeptide chains (2 alpha, 2 beta). Each polypeptide chain has a prosthetic group capable of picking up oxygen, therefore one Hb molecule can transport 4 oxygen molecules...
NL
4387 Views

Briefly describe the processes of ultrafiltration and selective reabsorption in the nephron

Ultrafiltration, the first stage of urine formation, begins when blood enters the glomerulus via the afferent arteriole. Water, glucose, ions and amino acids leave the blood and enter the bowman’s capsule. T...
KF
15459 Views

What is the mechanism which leads to an increase in heart rate during exercise?

Exercise leads to an increase of CO2 in the blood. This lowers pH as the CO2 binds with water to form carbonic acid. This pH change is measured by chemo-receptors in the carotid arteries. This change then si...
MB
3715 Views

How can you work out the chance of a child getting a genetic disease from a family tree?

This is really more of a puzzle than biology. You work this out the same way, no matter how big the tree is. First you need to figure out if the chromosome of the disorder is autosomal or sex-linked. If it m...
NW
3417 Views