What is the meant by the lock and key hypothesis?

Answer 1

The lock is the equivalent to that of an enzyme while the key is portrayed as the substrate.

Like an enzyme, the lock can be reused many times as it remains chemically unchanged at the end of the reaction. Also, the fact that reactions occur only at the active site, or binding site, is showed as the key only being able to open the lock only at the keyhole, not anywhere else.

The hypothesis also shows the fact that enzymes can only catalyse a specific substrate, showed as the lock, only being able to open with a specific key.

Firstly,the substrate will enter the active side of the enzyme.then,the enzyme will change it shape slightly as the substrate binds.During this time,the substrate will be broken down.After that,the product will leave the active sides of the enzyme.

Answer 2

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.

Answer 3

The lock-and-key theory describes how an enzyme (the lock) and the substrate molecule (the key) join together to form an enzyme-substrate complex, and goes a long way to proving the concept of enzyme specificity, whereby each type of enzyme can only catalyse one particular substrate.

The attached link should hopefully provide a graphic representation of this.if the co-factor is organic called apo_enzyme

Answer 4

When two complex chemicals in the body interact, they become attached to each other. This often requires that they fit together in very specific ways, like a key in a lock, otherwise no result happens. Examples are smells, where each receptor in the nose detects only molecules with certain groups on them (which is why nitrobenzene smells like almonds) and enzymes, which only lock on to their own substrates.

Answer 5

In the lock and key model, the enzyme and substrate are fixed and are a perfect fit. They don't change shape. However, the induced fit model is a hypothesis where the active site changes to fit the shape of the enzyme.

Answer 6

It’s when an enzyme active site locks into a subtrate (key)

Answer 7

well first your dad is they and your mom is the lock, do you understand it more now?

Answer 8

lock and key = substrate fits into enzyme perfectly

induced fit = enzyme changes shape of active site for substrate to fit

Answer 9

This hypothesis explains working of enzymes , enzymes are like keys which can open specific locks i.e. substrates , e.g. enzyme pepsin can digest protein but not starch .