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Describe how ions, water and sugar are obtained and transported through plants. In your answer you should refer to materials moving upwards and downwards in a plant. (6 marks)

Since this is a 6 marker, it is important for you to firstly express yourself coherently, and secondly write the 'key words' that examiners look for. The question is referring to the transport processes of t...
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Answered by Zahra I. • Biology tutor
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Mitosis is important in the life of a multi-cellular organism. Explain why and how mitosis works.

Mitosis allows for growth and development of a living organism. The genetic material inside each cell is doubled as the chromosomes are doubled. The chromosomes line up in the centre of the cell and are pull...
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Answered by Helen G. • Biology tutor
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Explain how enzymes speed up chemical reactions and how they are denatured.

Enzymes speed up chemical reactions by lowering the activation energy, which provides an alternative pathway, making it easier to reach the transition state. Enzymes are denatured by changes in temperature a...
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Answered by Tara W. • Biology tutor
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How are living organisms involved in the cycling of carbon?

Examples of living organisms involved in the cycling of carbon include plants, animals and microorganisms. Plants, for instance, take part in photosynthesis - a process through which carbon dioxide is taken ...
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Answered by Nafeesath M. • Biology tutor
7684 Views

Describe the structure of a protein and how it determines its function.

The primary structure of a protein consists of a sequence of amino acids joined together by peptide bonds. This is known as a polypeptide chain, which undergoes the most basic level of folding in the shape o...
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Answered by Khuzaima B. • Biology tutor
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