What effect does temperature have on enzymatic activity?

Answer 1

At a low temperature the enzyme activity is dependent on it. In other words, it is less than optimal.
If you slowly raise the temperature, the enzyme activity will increase. At room temperature the activity will be optimal.
If you increase the temperature further by 10 degree centigrade, the enzyme activity may be doubled.. The temperature range in which the enzyme activity is doubled in called Q 10 of the enzyme. The collision between substrate and enzyme increases so as to double the activity.
If you further increase the temperature the activity will show a decline, and with further increase in temperature the activity will drop to nil. It is because at higher temperature the the 3-D structure of the enzyme is destabilised and may even collapse resulting in its total denaturation. When the 3-D structure of the enzyme is destabilised the geometry of the active site is also affected resulting in slowing down and even total abolition of catalytic activity.

Answer 2

Does Temperature Affect Enzyme Activity

Answer 3

Essentially, the enzyme activity can increase, but only to a point. If the starting temperature is below the temperature at which the enzyme functions optimally, then the activity will increase not only because of increased collisions in solution, but because of the chemistry occurring at an optimal temperature. When the temperature is too high however, the structure of the enzyme can and will be denatured and the activity will decrease.

At lower temperatures the activity will be lower simply because of the enzyme and substrate moving more slowly in solution and due to a different structural configuration of the enzyme that is not optimal to activity.

Answer 4

Different enzymes has an optimum temperature where it works the best. A higher temperature generally results in an increase in enzyme activity. As the temperature increases, molecular motion increases resulting in more molecular collisions. If, however, the temperature rises above a certain point, the heat will deteriorate the enzyme, causing it to lose its three-dimensional functional shape by denaturing its hydrogen bonds. Cold temperature, on the other hand, slows down enzyme activity by decreasing molecular motion.

Answer 5

Every enzyme has an optimal temperature at which it works best. Excessive heat can cause proteins to denature, which obviously would decrease enzyme activity. However, small amounts of heat, increasing the speed of collisions between enzymes and substrate molecules could increase enzymatic activity.

Answer 6

Initially, in the ranges of life organisms, temperature will increase the kynetics of the substrate-enzyme complex, increasing the enzyme activity because the collision of both molecules increase.....there is a point above which, the enzimatic activity decreases or ceases altogether..
(take the example of somebody who has mild fever, with increased body temperature, and the example of somebody suffering heath stroke) inthe second case, the speed of enzymatic activity, will be slow, poor, because the "optimal range of activity" has been overcome.....
So it is an "S" shaped activity curve..(like in hemoglobin, however hemoglobin is a carrier pigment, not an enzyme, but the sigmoid curve of activity, goes parallel)

Answer 7

lower temperatures slow down enzymatic activity.. higher temperatures raise enzymatic activity.

But biological enzymes can also be denatured (i.e rendered inactive) when heated past their denaturation point.

Answer 8

every kind of enzymes works better on a certain temperature pressure acidity....
so temperature does affect enzymatic activity.

Answer 9

enzymes r of wide variety. max enzymes work at body temperature i.e. 37 degree celsius.
with increase or decrease of temperature enzyme activity decreases