How do enzymes speed up a reaction

For any chemical reaction to take place there must be a small input of energy. This is called the activation energy, and is often likened to the small push that is needed to loosen a boulder and allow it to roll down a hill. It is the energy needed to convert the molecules at the start of a reaction into intermediate forms known as transition states, by the rearrangement of chemical bonds. The great gift of enzymes is that they can greatly lower the activation energy of a reaction, so that it requires a smaller energy input, and may therefore occur more readily (Figure 6.4).

The purely protein component of an enzyme is known as the apoen-zyme. The complex of apoenzyme and cofac-tor is called the holoen-zyme. The apoenzyme on its own does not have biological activity.

Was this article helpful?

0 0
How To Win Your War Against Bronchitis

How To Win Your War Against Bronchitis

Sick And Tired Of Your Constant Cough? Is Your Bad Immune System Leading You To The Path Of Fever And Sore Chest? You Sure Have A Reason To Panic BronchitisThere Is Always A Way Out And, This Is It Finally Discover Some Of The Most Effective Tips That Can Curb Bronchitis, And Its Repeated Bouts Learn How To Keep The Chronic Cough, And Sore Chest Away Breathe Free, And Feel The Whiff Of Fresh Air, With No Hassles

Get My Free Ebook

Post a comment