Search over 10,000 free study notes

Both sperm cells and egg cells contain a haploid nucleus, this means that they contain half the number of chromosomes of a normal diploid cell. This is so that when the egg is fertilised by the sperm ther...

1. Waste (e.g. carbon dioxide)

Carbon dioxide is a waste product of respiration, which ends up dissolving in the blood plasma. This can cause the blood pH to decrease, which will ultimate...

A graph would be drawn to show a steady incline to an optimum temperature and then a sharp decrease after the peak.

As the temperature increases the enzyme and sustrate will have more kinetic energ...

Controlling body temperature is important due to multiple reasons. Firstly, it is important to maintain the temprature at which enzymes work optimally. Secondly, it allows for the chemical reactions in th...

The circulatory system is described as being "dual", which means that blood passes through the heart twice for each complete circuit of the body, once to the lungs, and once to the rest o fthe b...