Sunday, 7 September 2008

5.5 abc


How an enzyme work.
Enzymes are proteins that speed up specific reactions in cells.

For a chemical reaction to occur, you need to provide it a "start-up" energy, and it is called activation energy. To make a chemical reaction occur easier, we have enzymes that can lower the activation energy and make it easier.

For making a enzyme work, eveery kind of enzyme is in a specific shape that can only fit the specific molecule, and when the reactants come in, it makes the reactants bind to it, then turn it into the products.


1. Explain the role of activation energy in a reaction. How does an enzyme affect activation energy?

The role of activation energy in a reaction is like a barrier between the reactants and the products, and an enzyme effects the activation energy by lowering the activation energy.

2. Describe how a substrate interacts with an enzyme.

A way that an enzyme lower activation energy is by accepting two reactants into the adjacent sites. and makes them react more easily.

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