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Biology
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Why is diffusion important in plants and animals? Give examples

The process of diffusion is extremely important for the uptake of substances into cells. These substances can be very important for a whole range of cellular processes. Its also useful in reomoving waste ...

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Answered by Benito W. Biology tutor
70231 Views

Why should different animals have different haemoglobin types

Some animals contain haemoglobin molecules which are structured in way which allows them to have a high affinity for oxygen whilst some are the complete reverse. The reason for this is all to do with the ...

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Answered by Benito W. Biology tutor
25240 Views

Why is the polymerase chain reaction important and how does it work?

The polymerase chain reaction (or PCR) is extremely useful at copying fragments of DNA so by the end of it you have a much bigger sample than what you started with. This is particularly useful for example...

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Answered by Benito W. Biology tutor
9166 Views

Outline the roles of synapses in the nervous system

Primarily, the function of synapses is allow communication between nerones in the nervous system.

Additionally, the structure of synapses means that they can perform further functions. Sp...

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Answered by Lucy W. Biology tutor
43033 Views

Describe how a gene is used to synthesise a polypeptide

A gene is a section of DNA used to produce a single polypeptide, or protein molecule, which is made of amino acids. The process of protein synthesis can be divided into two parts.

The fir...

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Answered by Lucy W. Biology tutor
27711 Views

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