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Definition of enzymes: Biological catalysts that speed up the rate of reaction by lowering the activation energy , with no effect on equilibrium. They are proteins that have a specific shape . For the enz...

The first step is to read the question and ensure that the student understands all of the terminology. For example, make sure the student knows what is meant by ‘explain’, ‘enzyme’, and ‘denatured’. Then ...

A vaccine is a dead or attenuated (weakened) form the pathogen. When injected into the host, the antigens on the surface of the pathogen generate an immune response. This stimulates the production of whit...

You will will automatically move your hand away in a process known as the relex arc. Your natural 'reflex'.thermal sensors in your fingers will sense the heat and send electrical impulses along your senso...

Cells need to eat and drink, just like me and you. The process where cells ingest other cells or foreign material is called PHAGOCYTOSIS. The process itself is very complicated and you don’t need to know ...