Question

explain lock and key hypothesis of enzyme

Answer 1

The specific action of an enzyme with a single substrate can be explained using a lock and key analogy first postulated in 1894 by Emil Fischer. In this analogy, the lock is the enzyme and the key is the substrate.

Answer 2

Enzymes are specific. Only molecules with the correct shape can fit into the enzyme. Just like only one key can open a lock, only one type of enzyme can speed up a specific reaction. This is called the lock and key model.

Enzymes are proteins that speed up chemical reactions in our cells.

Enzymes work best at their optimum temperature. This is why homeostasis is important - to keep our body temperature at a constant 37°C.

As the temperature increases, so does the rate of chemical reaction. This is because heat energy causes more collisions, with more energy, between the enzyme molecules and other molecules. However, if the temperature gets too high, the enzyme is denatured and stops working