BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The first model called the lock and key model, proposes that the shape and chemistry of the substrate are complementary to the shape and chemistry of the active site on the enzyme. This means when the substrate enters the active site, it fits perfectly, and the two binds together, forming the enzyme-substrate complex.

Detailed explanation-2: -Yes, the shape of the enzyme is crucial to determining the function. Enzymes are specialized proteins that can either build up or break down reactants. The area of the enzyme where the substrate binds is specifically shaped to fit that substrate. If the enzyme is denatured, it cannot bind to the substrate.

Detailed explanation-3: -Enzymes only allow binding of molecules that can fit in their active site. As, these active sites (can be called locks) are very specific and only few molecules (can be called keys) can bind them, this model of enzyme working is called Lock and Key mechanism.

Detailed explanation-4: -Lock-and-key model is a model for enzyme-substrate interaction suggesting that the enzyme and the substrate possess specific complementary geometric shapes that fit exactly into one another. Enzymes are highly specific. They must bind to a specific substrate before they can catalyze a chemical reaction.

Detailed explanation-5: -Enzymes bind to substrates in what is known as a lock-and-key mechanism. The active site of an enzyme is specific to a certain substrate.