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What is the oxygen-haemoglobin dissociation curve?

The oxygen-haemoglobin dissociation curve is a graph that compares the % of haemoglobin saturated with oxygen on the y-axis to the partial pressure of oxygen in the blood on the x-axis (mmHg). It is a useful...
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Answered by Hugh R. • Biology tutor
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What is an ionic bond?

An ionic bond is an electrostatic interaction between a cation(positive) and an anion(negative). These bonds are formed when a metal forms a compound with a non-metal. Metals lose electrons and become cation...
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Answered by Olivia P. • Chemistry tutor
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What are the different stages of mitosis?

Mitosis is a type of cell division that results in genetically identical daughter cells and occurrs in many parts of the body helping with repair and replacement of cells. It is also used in asexual reproduc...
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Answered by Olivia P. • Biology tutor
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How do you find the mean of 5 values?

As a general rule of thumb, to find the mean of a given set of numbers: add up all the numbers youve been given and divide by the number of values you have. e.g. Find the mean of these values: 5, 10, 8, 9, 2...
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Answered by Olivia P. • Maths tutor
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What is the difference between 'a' and 'à'?

French is a hard language. But here is a helpful way of learning the difference between à and a.'a' is a conjugated form of the verb 'avoir' e.g. il a un bateau (He has a boat)'à' is commonly used as a prepo...
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Answered by Julien P. • French tutor
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