NUTRITION
NUTRITION ENERGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The enzymes have completed all the reactions so stop
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The enzymes have been denatured or destroyed
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Nothing - the rate continues to increase all the time
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None of the above
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Detailed explanation-1: -Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working.
Detailed explanation-2: -Denaturation of enzymes causes bonds to be broken, structure to be disrupted and it stops functioning. This happens to enzymes when they are exposed to extreme, unsuitable conditions, for instance, high temperatures or extreme pH levels.
Detailed explanation-3: -Enzymes are protein molecules that get denatured at high temperatures. High heat breaks hydrogen and ionic bonds leading to disruption in enzyme shape. The enzyme loses its activity and can no longer bind to the substrate.
Detailed explanation-4: -If enzymes are denatured, they lose the shape of their active sites which means they cannot bind to their substrate, decreasing the rate of reaction.