Investigating the Effect of Concentration on the Rate of Enzyme Catalysed Reaction

Investigating the Effect of Concentration on the Rate of Enzyme Catalysed Reaction

To investigate the effect of concentration on the rate of enzyme

catalysed reaction I must know all the factors that affect it in order

to investigate in this.

Here are all the factors:

Temperature- Enzyme like it warm but not too hot. Enzymes are

biological catalysts, which speed up chemical reactions. They work

most efficiently at the optimum point (37°C). If they are below 37°C

they will work slower. If the temperature goes over 45°C they will be

denatured due to the high heat.

PH- The pH affects the activity of enzymes. It depends on what

solution there surrounded in. Each enzyme works most efficiently at a

certain degree of acidity or alkalinity. Example - the enzymes in our

stomach (protease) are surrounded by hydrochloric acid at a pH of 2

(strong acid), which is the condition it works most efficiently at.

Concentration- If the solution is made more concentrated it means it

contains more particles and therefore speed up a reaction. If the

solution has a weak concentration it will have less particles and

therefore a slow reaction will occur.

All enzymes are biological catalysts. Living organisms have thousands

of chemical reactions going on inside them. Obviously the quicker the

reaction the better it is and it's important that the temperature is

at a correct level to speed them up. If the temperature is high

enough, above 45°C they will be denatured because enzymes are living

organisms and too much heat has an affect on them.

Enzymes do all sorts of different processes. Each one is designed to

do a specific job.

Example - they break down food.

Protein protease amino acid

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Starch carbohydrase Glucose

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[IMAGE]Lipids Lipase Fatty acids + Glycerol

These enzymes breakdown these foods. The acidity and alkalinity

depends on their rate of reaction. Enzymes do different jobs and

because of that they work in different conditions. The protease enzyme