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Enzymes are proteins, which are made up of amino acids. Each enzyme has a different sequence of amino acids and changing even one amino acid will mean that the tertiary structure of the enzyme will be lost and so will it's active site. As enzymes are substrate specific, only a certain substrate will bind to its active site, due to its amino acid sequence determining the shape of the active site.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoThe active site of an enzyme is specific to its substrate. If the right substrate fits into the active site, then the catalytic activity is started. An incompatible substrate would not bind to the active site and therefore no catalytic process would occur.
Wiki User
∙ 14y agoThe active site is where a substrate binds. Enzymes have very specific shapes as do their active sites. This means that only molecules with that certain shape can fit in the active site. This is called the lock-and-key theory of enzyme specificity.
Wiki User
∙ 13y agothe shape of an enzyme's active site makes it specific, because only one particular substrate can fit into that shape, due to the substrate's specific shape. i.e. the enzyme's shape is complimentary to the shape of its substrate.
each enzyme can only act upon one particular substrate.
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What is the difference between an enzyme and a catalyst and how are they similar. Please be very specific for me?
Enzyme slow down a reaction while catalyst speed up reactions. Enzyme contain a zinc content which makes it a metal, as well as catalyst; so that is one example of their simularities.
Why is the sturcture of an enzyme so important?
It is important because with any shape its no use like a can, without a can opener you can't use the food in the can that's why its important that enzymes have a specific structure like a key to unlocking a specific lock, so it can use that enzyme
Why their structure shape is so important (hintactive site)?
The shape of the active site is very important because it determines the efficiency of the specific enzyme. If an active site shifts, the substrate can no longer bind to an enzyme's active site, therefore causing inefficiency. We say that the enzyme is undergoing denaturation.
Do an enzyme And its substrate fit together like a lock and key?
Enzymes are proteins that have a very specific structure. The region on the surface of an enzyme that is responsible for binding and converting the subtract into the product is called the active site.
An enzyme that breaks down starch will also break down proteins?
Proteases are enzymes which break down proteins. Each enzyme can only break down one substance (they are specific to one substrate). This is because their active site has a specific shape to fit a protein and will not fit a starch molecule.
What do enzymes have to help them fit their substrates the molecules that attach to the enzyme?
Enzymes are proteins that have a very specific structure. The region on the surface of an enzyme that is responsible for binding and converting the subtract into the product is called the active site.
What is the difference between an enzyme and a catalyst and how are they similar. Please be very specific for me?
Enzyme slow down a reaction while catalyst speed up reactions. Enzyme contain a zinc content which makes it a metal, as well as catalyst; so that is one example of their simularities.
What do enzymes have to help them fit their substrate?
Enzymes are proteins that have a very specific structure. The region on the surface of an enzyme that is responsible for binding and converting the subtract into the product is called the active site.
What location on an enzyme is very specific to a particular reactant?
The active site.
Why is hair not an enzyme?
Hair like enzymes are made of protein. However for a protein to be an enzyme it must have a very specific tertiary structure (shape) and have an active site that has a complementary shape to part of its substrate molecule. ie the enzyme must fit with the thing that it breaks down The tertiary sructure of hair is not highly folded and does not have a complementary shape to a substrate molecule therefore it is not an enzyme
What is the affect of temp on enzyme activity?
It makes it grow very big
Why is the sturcture of an enzyme so important?
It is important because with any shape its no use like a can, without a can opener you can't use the food in the can that's why its important that enzymes have a specific structure like a key to unlocking a specific lock, so it can use that enzyme
Why their structure shape is so important (hintactive site)?
The shape of the active site is very important because it determines the efficiency of the specific enzyme. If an active site shifts, the substrate can no longer bind to an enzyme's active site, therefore causing inefficiency. We say that the enzyme is undergoing denaturation.
How does the addition of urea affect the rate of enzyme reaction?
Urea denatures the enzyme as it disrupts the 3-D structure of the enzyme, this changes the shape of the enzymes' active site, thus meaning that the enzyme is unable to create an enzyme-substrate complex which then means that the reaction cannot occur thus the rate of the enzyme controlled reaction becomes very slow.
How does an enzyme become denatured?
An enzyme becomes denatured when: A) the temperature exceeds the optimum temperature for that enzyme (ie the temperature that it works best at) B) the pH of the surrounding of the enzyme is too low or too high for the optimum pH for that enzyme. When enzymes are heated up too much they vibrate so vigorously that the bonds holding the protein structure in its specific shape becomes broken. The enzyme shape changes and the substrate no longer fits in to the active site. An enzyme which has become denatured is permanently inactive and will take no further part in reactions.
What two ways does ribulose 5 phosphate inefficient compared to other enzymes?
it is slow and not a very specific enzyme
Would you expect a fat and a sugar molecule to be acted upon by the same enzyme?
No. enzymes are very specific to their substrate.
