In impaired glucose tolerance (IGT), the levels of blood glucose are between normal and diabetic. People with IGT do not have diabetes. Each year, only 1-5% of people whose test results show IGT actually develop diabetes. And with retesting, as many as half of the people with IGT have normal oral glucose tolerance test results. Weight loss and exercise may help people with IGT return their glucose levels to normal. With diet and exercise as many as 60% will not developed diabetes or it will be considerably slowed in its development.
Reaction rates, temperature and catalysis. 1  As learned in previous modules, the rate of a reaction is increased by using a catalyst or increasing the temperature. 2  The effect of using a catalyst and increasing the temperature can be explained using the collision theory. The collision theory of reactions. The basic principle of the collision theory is that chemicals react when their particles collide with a certain minimum energy.
Increasing temperature increases the rate of enzyme activity up to a point when it become too hot, when the enzyme is denatured and so activity stops.Increasing temperature i â¦ ncreases the rate because the substrate has more kinetic energy, so is more likely to collide with the enzyme for the reaction to take place.   Temperature can have other effects as well. Enzymes perform their work on what is called a substrate. The substrate may also be affected by temperature. For example, there is an enzyme commonly used in molecular biology called ligase. Ligase joins to pieces of DNA together.