The effect of hydrogen peroxide on catalyse if you change the temperature

The effect of hydrogen peroxide on catalyse if you change the temperature

Plan:

Aim:

My aim in this investigation is to find out and investigate how the temperature affects the rates of reaction of the enzyme catalyse on its substrate hydrogen peroxide.

An enzyme is a biological catalyst, it alter the rate of reaction without being changed itself. Enzymes are proteins; they have a very precise three-dimensional shape, which forms a one specific active site on the enzyme. Each enzyme can only convert one kind of substrate molecule in to one kind of product molecule. These are specific.

What affects Enzymes?

· Temperature- Enzymes stop working if the temperature rises above 40ºC. Increasing the temperature alters the 3D shape and so the enzyme can no longer fit the substrate.

· pH- They work best in neutral conditions neither acidic nor alkaline.

What affect does catalyse have?

Catalyse is a very fast reacting enzyme, it is found in many living cells, it breaks down hydrogen peroxide to water and oxygen.

English: The catalytic decomposition of a very dil...

Rocket Belt hydrogen peroxide propulsion system us...

Hydrogen peroxide

In fact one molecule of it can deal with six million molecules of hydrogen peroxide in 1 minute. Hydrogen peroxide is toxic so needs to be changed into harmless substances.

Apparatus:

· Hydrogen peroxide 30ml

· 25ml cylinder tube

· Kettle

· Water bath

· Hot water bath

· Delivery tube

· Conical flask

· Thermometer

· Clamp

· Burette (60cm)

· Stop watch

· White tile

· Knife

· Ruler

· Rubber bung

· Goggles

· Flask

· Stop watch

· Potato

Method:

· Put goggles on

· Gather all the equipment

· I will then put all my apparatus together ensuring that I have assembled everything correctly

· Warm the water up in the kettle

· I will then get the white tile and place the potato onto the...