AP BIOLOGY

Detailed explanation-1: -This statement is false. 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. An enzyme will not begin functioning unless that specific substrate is bound to the active site.

Detailed explanation-2: -Enzymes are highly specific for the substrate. So they cannot be used for different types of reactions. As lock and key model assumes that a high degree of similarity between the shape of substrate and the geometry of the binding site of the enzyme.

Detailed explanation-3: -An enzyme’s shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules. Why do enzymes have different shapes? Different types of enzymes have different shapes and functions because the order and type of amino acids in their structure is different.

Detailed explanation-4: -A Lock and Key analogy may be used to describe the fundamental action of a single substrate enzyme. In this case, the enzyme is the lock, and the substrate is the key. Only the correct size key, which is the substrate, enters the keyhole, which is the active site of the lock, which is the enzyme.

Detailed explanation-5: -This stabilization speeds up reaction rates and makes them happen at physiologically significant rates. Enzymes bind substrates at key locations in their structure called active sites. They are typically highly specific and only bind certain substrates for certain reactions.