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Enzyme substrate 'lock and key'.
Enzymes can work by:
- attracting and sticking to the reacting molecules making it easier for them to meet
- providing an alternative route for the reaction with a lower activation energy , so that a greater proportion of the collisions have more than enough energy to succeed
- holding the molecules the right way round so that the reactive groups are brought together.
Wiki User
∙ 10y ago
Wiki User
∙ 14y agoenzymes are what catalyze reactions. most of the time they are enzymes. the lock and key theory simply put basically states that enzymes are the "keys" that fit into a allosteric site (the lock) and catalyze a reaction. only specific keys can fit into specific locks.
Wiki User
∙ 15y agoit means that an enzyme will only lock into one substance that fits
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What are all the enzymes that use the lock and key model?
ALL enzymes use the lock and key model!
Do enzymes change shape to move substances across the plasma membrane?
Enzymes and the substrates they work on fit like a lock and key, if you change the shape of the key, the lock won't open. An enzyme whose shape changes is no longer able to activate the reaction of the substrate.
How does the lock and key help analogy explain enzymes?
just like keys will open a particular lock, enzymes will catalyse only a particular reaction.
What is lock and key?
Lock and Key is one of the theories behind how enzymes fit together with substrates and act as biological catalysts that speed up a reaction in the body. The enzyme usually allows this to happen at much lower temperatures than normal and whithin the range of the animals body. The lock and key refers to the tight specific fitting of the substrate with the enzyme so that specific enzymes can target specific substrates.
Why does destroying the active site by heating the enzyme to a high temparature stop the enzyme from working?
Extremely high or low pH values or heat generally result in complete loss of activity for most enzymes. They lose the shape that they should be in to fit into the active site. They and the active site work as a lock and key. If the key (or the lock) change shape, the mechanism will not work.
Why do enzymes have an active site?
The structure of an enzymes and its active site determine which substrates will work for the enzyme. This is called the lock and key method. The active site is the lock and the substrate is the key.
What are all the enzymes that use the lock and key model?
ALL enzymes use the lock and key model!
What type of model does an enzyme work like?
enzymes work on lock and key model and induced fit model.
What is the lock and key method?
cause a change rearrangable work because of their shape
Do enzymes change shape to move substances across the plasma membrane?
Enzymes and the substrates they work on fit like a lock and key, if you change the shape of the key, the lock won't open. An enzyme whose shape changes is no longer able to activate the reaction of the substrate.
How does the lock and key help analogy explain enzymes?
just like keys will open a particular lock, enzymes will catalyse only a particular reaction.
In the lock and key method which is the lock?
The Key is the substrate while the key is the enzyme. Just finished learning this :)
What is the structural classification of enzymes?
I believe it is a "Key in a lock" formation
What is considered a model for enzymes actions?
the answer is lock and key model .
Which substances fit together like a lock and key?
enzymes and substrates
How does a lock work?
A key lock works by putting a key in and when you turn the key it pushes a loose round piece which releases the lock.
What is the lock and key analogy for enzymes?
The Lock and Key Analogy of Enzymes and Substrates:Enzymes act as a catalyst in a given chemical reaction (for example, lactase allows lactose to break down into Glucose and Galactose); enzymes lower the amount of energy required to make a reaction occur. There is a key concept to this theory: Enzymes are designed work for only one reaction; there is only one key that fits the lock perfectly.Without enzymes, our bodies wouldn't be able to handle the amount of heat the reactions that occur inside if there weren't any enzymes (or the reactions just wouldn't occur!In the Lock and Key Analogy, the substrate (Lactose in the example) is the "key". The key must fit perfectly into the active site that is on the enzyme, or the "key hole in the lock (Lactase is the Lock in the example). The substrate will then break down into its products (which in the example would be the Glucose and Galactose).This can happen in different ways: 1) two (or more) substrates can bind onto the same active and combine to form one product; 2) one substrate can bind onto an active site and break down to form two (or more) products......Here is a picture of what the Lock and Key Theory looks like:http://i677.photobucket.com/albums/vv133/erica46829/LockandKeyTheory.jpg
