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When a substrate molecule comes in contact with the active site of an enzyme what happens?
Wiki User
∙ 9y ago
Enzymes speed up the rate of reaction by lowering activation energy needed to begin a reaction. They are globular (spherical) proteins and are highly specific, with a shape maintained by hydrogen and ionic bonds, and hydrophobic interactions along the polypeptide chain. So, a substrate with a specific shape that exactly fits the shape of the enzyme's active site bonds to the site with noncovalent bonds, a mixture of ionic and hydrogen bonds. The enzyme will then increase the likelihood of bonding in the substrate molecule or conversely will weaken, stress and finally break bonds so that atoms can be rearranged into a product.
An enzyme is NOT changed in a reaction. : )
Wiki User
∙ 13y ago
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What is the molecule called that fits into the active site?
The substrate.
Parts of the enzyme molecule that interact with a substrate are called?
active sites
What is the portion of an enzyme molecule into which a specific substrate can fit is called the?
It is known as the active site.
Give 2 explanations for the fact that only certain substrate molecules will fit into this part of the enzyme molecule?
A substrate molecule will only fit into the active site if it is a complimentary shape. Also the amino acids that make up an enzyme have positively and negatively charged chemical groups so in orderr for a substrate to fit its active site any electrical charges on the substrate molecule must not be repelled by like charges on the enzyme so the charged groups on the enzyme molecule and substrate molecule must attract one another
The particular region of an enzyme molecule that combines with the substrate it acts upon is called what?
The area where a molecule other than substrate can attach is called the allosteric site.
The specificity of an enzyme is due to its active siteThe active site is a shape only a certain?
An enzyme's active site will bind with only a specific substrate. Any other kind of substrate will be rejected by the active site.
What is the surface region of an enzyme into which substrate molecule fits?
That is the active site. Substrate binds to it
What is the molecule called that fits into the active site?
The substrate.
What happens after a substrate binds to an enzyme?
Substrate a reactant molecule that binds to an enzyme. It has a specific shape that is complementary in shape to the active site of the enzyme. Product the substance or substances produced by the reaction between the enzyme and substrate.
Why must a molecule have a specific shape if it is to be a substrate of an enzyme?
Active sites of enzymes (where the substrates fit in) are substrate specific, and are complementary to the shape of the molecule (substrate). In this way, enzymes can only act on a specific substrate, since that is the only shape that it will accommodate in the active site.
What is the part of the enzyme that binds with the substrate?
The part of the enzyme where the substrate attaches itself to is known as the "active site". The active site of an enzyme is a part of the molecule that has just the right shape and functional groups to bind to one of the reacting molecules. The reacting molecule that binds to the enzyme is called the substrate.
Parts of the enzyme molecule that interact with a substrate are called?
active sites
Explain the difference between substrate and active site?
Substrate is the reactant in which an enzyme reacts out. While the active Site is a special region of the enzyme where the substrate binds forming a temporary enzyme-substrate complex.
What is the portion of an enzyme molecule into which a specific substrate can fit is called the?
It is known as the active site.
Give 2 explanations for the fact that only certain substrate molecules will fit into this part of the enzyme molecule?
A substrate molecule will only fit into the active site if it is a complimentary shape. Also the amino acids that make up an enzyme have positively and negatively charged chemical groups so in orderr for a substrate to fit its active site any electrical charges on the substrate molecule must not be repelled by like charges on the enzyme so the charged groups on the enzyme molecule and substrate molecule must attract one another
What happens at the active site of an enzyme?
the substrate bonds to the enzyme at the active site
What kind of bonds hold the substrate in the active site of the enzyme?
The bonds that hold the the substrate to the active site are hydrogen bonds. These are relatively weak bonds.
