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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 how a a neurone communicates it's information with an adjacent neurone through the synapse? (3 marks)

Neurotransmitter is released from presynaptic neurone into the synaptic cleftDiffuses across the synapse Neurotransmitter binds onto postsynaptic membrane
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Answered by Sofia P. • Biology tutor
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