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What are the main methods the human body uses to prevent infection from micro-organisms?

The human body has evolved to be able to protect itself from it's external environment, especially preventing microbes entering the body, invading our cells and causing infectious diseases. Some of the co...

Answered by Kavindu A. • Biology tutor

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Person A and person B both eat the same high glucose meal. Person A's insulin rises dramatically while Person B's does not. Explain a possible reason why and describe what happens to the glucose once it enters their blood streams.

In person A, once the glucose enters the blood stream, the higher glucose level is detected by the beta cells of the islets of Langerhans in the pancreas. These cells respond by synthesising insulin and s...

Answered by Jack B. • Biology tutor

2226 Views

Describe how the presentation of a virus antigen on a cell leads to the secretion of antibodies against this viral antigen

3 mark question - remember to use key words/phrases the examiner will be looking for to give you the marks. Be concise and specific in your answer - make it as easy as possible for the examiner.

Answered by Eleanor M. • Biology tutor

22874 Views

Compare and contrast competitive and non-competitive enzymes inhibitors

Both competitive and non-competitive inhibitors interfere with the functioning of the enzyme's active site, reducing the number of enzyme-substrate complexes that can form. Competitive inhibitors have a s...

Answered by Georgia T. • Biology tutor

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