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Explain the primary, secondary and tertiary structure of proteins

The primary structure of a protein is made up of a sequence of amino acids which is coded for by the organisms DNA triplets which are transcribed in the process of protein synthesis, the secondary structure ...
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What is Eutrophication?

When it rains, nitrates added to the soil by fertilisers can run off into water courses, such as lakes. This is called leaching. The high level of nitrates in the water accelerates the growth of plants at th...
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Describe two differences and two similarities between animal cells and plant cells.

Differences:Plant cells have cell walls, animal cells do not.Plant cells have vacuoles, animal cells do not.Plant cells have chloroplasts, animal cells do not.Similarities:Both plant and animal cells have ce...
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Answered by Anna H. • Biology tutor
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How is a growth curve of microorganisms shaped? What happens during the different phases?

The growth of most microorganisms can be divided into four different phases:Lag phase - Small populations start to replicate slowly. Replication is 'lagging' as microorganisms are adapting to conditions.Log/...
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How does blood flow through the heart?

(First would talk through the structure of the heart using a diagram). Deoxygenated (lacking oxygen) blood from the body arrives into the heart via the vena cava. This empties into the right atrium and then ...
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Answered by Kieran M. • Biology tutor
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