How does increasing the temperature increase the rate of respiration in yeast?

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Yayang
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Hi guys,

Doing the AQA A level biology practical 9 and I don't understand why increasing the temperature increases the rate of respiration in yeast? I was also wondering how that was linked to the methylene blue becoming colourless in the practical?

I know that increasing the temperature increases the kinetic energy of the molecules, which in turn increases the rate of respiration but why is that?

Many thanks
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Not.Vibing.
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From what I can understand, when you increase the rate of a temperature, it also increases the rate of successful collisions between the reacting particles so there is more chance of the reaction occurring.

I don't do aqa so that's the extent of my knowledge on this topic, sorry!
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Jess_Lomas
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(Original post by Yayang)
Hi guys,

Doing the AQA A level biology practical 9 and I don't understand why increasing the temperature increases the rate of respiration in yeast? I was also wondering how that was linked to the methylene blue becoming colourless in the practical?

I know that increasing the temperature increases the kinetic energy of the molecules, which in turn increases the rate of respiration but why is that?

Many thanks
The more kinetic energy the faster the enzyme controlled reaction is meaning that more oxidative phosphorylation will take place so more hydrogen atoms will be split into protons and electrons so the methylene blue will accept more electrons and become reduced faster
Hope this helps
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