PLANT PHYSIOLOGY
PLANT GROWTH
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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 they have no more work
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The enzymes are denatured
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Nothing-the rate continues to increase all the time
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The enzymes die
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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: -Once the temperature is higher than ideal, the enzyme will become denatured and permanently change shape, causing the enzymes and substrates to no longer fit together.
Detailed explanation-4: -As shown in the example graph, treating the enzyme to temperatures above 40°C causes a marked decrease in the reaction rate. Since the reaction occurred at room temperature, we know that the enzyme begins to denature at temperatures greater than 40°C.