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Describe the structure of a protein

Proteins are made up of polypeptide chains. These are chains of amino acids which are joined together by peptide bonds as a result of a condensation reaction. This produces water as a waste product.The prima...
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Answered by Hena R. • Biology tutor
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Example the process of Speciation

All population that reproduce sexually contain some degree of genetic variation, likewise, all environments will have different selection pressures. As a population reproduces, the individuals best suited to...
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Answered by Zaidi H. • Biology tutor
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Explain how the human circulatory system is adapted to supply oxygen to the tissues and remove waste products from tissues.

This is an example of knowledge recall question with need for further explanation. It is therefore important to be able to explain yourself concisely and in the manner that the examiners expect to gain the m...
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Answered by Theodore H. • Biology tutor
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Describe the process of translation

Transcription is the first stage of protein synthesis. It involved the formation of primary mRNA. Transcription begins with a section of DNA within the nucleus unwinding using enzyme DNA helicase. This separ...
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Answered by Jaydeep B. • Biology tutor
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What is ocean acidification?

Ocean acidification is caused by the chemical reaction of CO2 dissolving into seawater, where it immediately dissociates into carbonic acid and then into bicarbonate and hydrogen ions which decreases the pH ...
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Answered by Lulu S. • Biology tutor
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