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Is enzyme organic or inorganic?
An enzyme is a protein and has many carbon hydrogen bonds, so it is an organic molecule.
What are enzymes and what are they made of?
Enzymes are biological catalysts. This means they break down substances without being changed themselves. This is why they can be used over and over again. Enzymes are made from amino acids joined together by different bonds, one of the type of bonds being hydrogen bonds. As enzymes have hydrogen bonds it means they are sensitive to pH and temperature. A temperature too low will mean that the molecules (substrate) which should fit to an area on the enzyme called the active site cannot do so as hydrogen bonds are stronger in colder conditions. (Enzymes change slightly as the substrate fits on to it) This would mean that the enzyme is less able to change shape slightly because the stronger hydrogen bonds make the enzyme less flexible. Temperatures which are too high for the enzyme (if they exceed the perfect temperature, called the optimum temperature, of the enzyme) denature the enzymes, meaning that they are unable to catalyse chemical reactions, this is due to the high temperature causing the hydrogen bonds which bond the amino acids together to beak, causing the enzymes active site to change shape, meaning that the substrate can no longer fit into the active site meaning that the rate of reaction of the chemical reaction is lower. There is a point when the hydrogen bonds, once broken, are no longer able to re-bond, meaning the enzyme could never "re-nature". This is very bad if the chemical reaction is necessary. If the pH which the enzyme is exposed to is not its optimum the rate of reaction will be slower as the pH changes the molecular shape of the enzyme, and can have an effect on the intermolecular forces of the Hydrogen bonds (it can weaken or strengthen them)
How can an enzyme be denatured and why does that process result in the loss of activity of the enzyme?
by increasing the temperature above the optimum temperature(above 45), we can denature an enzyme!! the temperature affects the non-covalent bonds of an enzyme!! at 40
Which intermolecular force affects melting point the most?
These are the hydrogen bonds between molecules.
When a substrate molecule comes in contact with the active site of an enzyme what happens?
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. : )
How might very low pH affect an enzyme's hydrogen bonds?
A very low pH can break the hydrogen bonds in an enzyme which causes the shape of the enzyme to change shape making the enzyme unable to do it's job. This is called "denaturation" However some enzymes such as pepsin only work in a low pH (pepsin works best in a pH of about 3) so it does depend on the enzyme.
What opens DNA but breaks hydrogen bonds?
The enzyme helicase.
What enzyme is involved in breaking down hydrogen bonds?
Helicase
Is enzyme organic or inorganic?
An enzyme is a protein and has many carbon hydrogen bonds, so it is an organic molecule.
What are the two types of chemical bonds observed between enzyme and substrate?
Both hydrogen and ionic bonds.
What are enzymes and what are they made of?
Enzymes are biological catalysts. This means they break down substances without being changed themselves. This is why they can be used over and over again. Enzymes are made from amino acids joined together by different bonds, one of the type of bonds being hydrogen bonds. As enzymes have hydrogen bonds it means they are sensitive to pH and temperature. A temperature too low will mean that the molecules (substrate) which should fit to an area on the enzyme called the active site cannot do so as hydrogen bonds are stronger in colder conditions. (Enzymes change slightly as the substrate fits on to it) This would mean that the enzyme is less able to change shape slightly because the stronger hydrogen bonds make the enzyme less flexible. Temperatures which are too high for the enzyme (if they exceed the perfect temperature, called the optimum temperature, of the enzyme) denature the enzymes, meaning that they are unable to catalyse chemical reactions, this is due to the high temperature causing the hydrogen bonds which bond the amino acids together to beak, causing the enzymes active site to change shape, meaning that the substrate can no longer fit into the active site meaning that the rate of reaction of the chemical reaction is lower. There is a point when the hydrogen bonds, once broken, are no longer able to re-bond, meaning the enzyme could never "re-nature". This is very bad if the chemical reaction is necessary. If the pH which the enzyme is exposed to is not its optimum the rate of reaction will be slower as the pH changes the molecular shape of the enzyme, and can have an effect on the intermolecular forces of the Hydrogen bonds (it can weaken or strengthen them)
Changes in temperature and pH can decrease an enzyme's activity by breaking?
Hydrogen bonds
What Enzyme that separates DNA by breaking the hydrogen bonds that link the nitrogen bases?
Helicase ! (:
What enzyme the separates DNA by breaking the hydrogen bonds that link the nitrogen bases?
Helicase ! (:
WHAT Breaks the hydrogen bonds in DNA?
i dont know but there is a website its wikipiedia
Substrate attaches to what of an enzyme?
At the active site. The substrate is held in the active site by "weak interactions" such as hydrogen bonds and ionic bonds.
What breaks the hydrogen bonds between nucleotides to separate dna into 2 stands?
The enzyme helicase.
