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Describe how haemoglobin binds to oxygen:

The binding curve of haemoglobin to its substrate is sigmoidal ('s' -shaped). Haemoglobin has four subunits, each of which will bind one molecule of oxygen. The reason for the sigmoidal shape is the proce...

EB
Answered by Emma B. Biology tutor
3132 Views

Explain how red blood cells are adapted to carry oxygen.

Firstly, red blood cells contain the globular protein haemoglobin which is able to bind reversibly with oxygen. This means red blood cells can take up and then release oxygen as they transport it around t...

LC
Answered by Laura C. Biology tutor
15356 Views

Why are there two types of future tense used in French and when should each be used?

Similar to the English language, French has two main ways of expressing an event which is going to happen in the future.The first is the standard future tense which can be used to discuss...

LC
Answered by Laura C. French tutor
2169 Views

What are the differences between eukaryotic and prokaryotic cells?

There are differences between eukaryotic and prokaryotic cells, that allow them to be distinguished. 1) There is compartmentalisation in the eukaryotic cells, meaning the eukaryotic cells contain structur...

TD
2009 Views

Explain Anselm's Ontological Argument

It is widely believed that Anselm wrote this argument as a prayer to God; Anselm wrote from the position of someone with ‘faith seeking understanding’, not of someone trying to logically prove God's exist...

TD
4892 Views

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