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Biology
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Describe the process of diffusion?

Diffusion is the process where water molecules move from a negative water potential to a more negative water potential through a semi permeable membrane.

Answered by Fawcett G. Biology tutor
2970 Views

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 pro...

Answered by Zahra I. Biology tutor
7387 Views

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 p...

Answered by Helen G. Biology tutor
2192 Views

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 temperatur...

Answered by Tara W. Biology tutor
6679 Views

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 tak...

Answered by Nafeesath M. Biology tutor
5853 Views

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