nothing.
Enzymes act only on a specific substrate due to the active site of the enzymes fits perfectly with the substrate. Like 2 puzzle pieces, they can only go together and not with anything else.
It is when the enzyme (lock) fits exactly into the substrate (key) forming an enzyme substrate complex. It refers to enzymes and their substrates. The enzyme has an active site (lock) where the substrate that is complemetary fits in (key). Only substrates that fit perfectly into the enzymes active site will active the particular reaction, just like only 1 specific key will open a door.
The molecule that fits into the active site of an enzyme is called a substrate. Substrates bind to the active site of an enzyme, where they undergo a chemical reaction to form products. This process is essential for the catalytic function of enzymes.
Enzymes act only on a specific substrate due to the active site of the enzymes fits perfectly with the substrate. Like 2 puzzle pieces, they can only go together and not with anything else.
The reason why an enzyme fits a specific substrate is due to its 3rd dimensional shape. Enzymatic competition involves competition among several different available enzymes to combine with a given substrate material.
The model you are referring to is the lock-and-key model of enzyme-substrate interaction. This model proposes that enzymes have specific active sites that perfectly fit the substrate, similar to how a lock fits a key. This precise fit allows for the formation of the enzyme-substrate complex and subsequent catalysis of the reaction.
That is the active site. Substrate binds to it
The enzyme substrate complex
in an enzyme-substrate complex, the enzyme acts on the substrate .
Competition among various enzymes for same substrate
The substrate binds to the active site.
The substance on which enzymes act are called substrates.