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Enzymes are complex proteins that exist in plants, animals and humans. In Biological terms enzymes function as biological catalysts (they make biological processes happen).
In Chemistry catalysts often are metals like nickel or palladium (i.e the catalytic converter in your car). In the chemical industry catalysts are used to initiate, speed up or slow down a reaction.
In Biological processes, enzymes or "bio-catalysts" are used to initiate a reaction or more simply put, to accomplish some kind of task. A good example is the enzyme "Lactase" which is used in the product called "Lactaid" (milk). All milk contains the sugar lactose which is said to cause digestive upset (lactose intolerance) in some people. The enzyme "Lactase" acts upon the lactose in milk and converts it to another sugar called galactose and one or two other harmless components rendering the milk "lactose free". LACTAID is REAL milk which has had lactose removed because of the action of the enzyme....Lactase was resonsible for the biological reaction that converted lactose to other sugars which do not cause digestive upset.
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What is the model of enzyme activity?
In a model of enzyme action, the enzyme can attach only to a substrate (reactant) with a specific shape. The enzyme then changes and reduces the activation energy of the reaction so reactants can become products. The enzyme is unchanged and is available to be used again.
If lactase breaks down lactose and galactose then the enzyme sucrase breaks down?
The enzyme sucrase breaks down sucrose. Glucose and fructose are the products of this chemical reaction.
What is a sequence of enzyme-mediated chemical reactions called?
An orderly sequence of reactions with specific enzymes acting at each step is metabolic pathways. A metabolic pathway has an orderly sequence of reaction steps, that may be biosynthetic or degradative, which uses specific enzymes for each reaction step.
Which enzyme converts fibrin to fibrin degradation products?
Conversion of fibrinogen into fibrin is important in blood clotting and preventing further blood loss. The enzyme responsible for the conversion process is thrombin.
If an enzyme in solution is saturated with substate What is the most effective way to obtain yield of produtct?
If an enzyme solution is saturated with substrate the most effective way to obtain a faster yield of products is to increase the enzyme concentration. An alternative is to increase the temperature.
What is the next step in the process after a substrate enters the active site of an enzyme?
The enzyme and the products bind to form the enzyme-products complex
The binding together of an enzyme and a substrate forms a?
The substrates are converted into products, which are released.
What is the model of enzyme activity?
In a model of enzyme action, the enzyme can attach only to a substrate (reactant) with a specific shape. The enzyme then changes and reduces the activation energy of the reaction so reactants can become products. The enzyme is unchanged and is available to be used again.
When an enzyme catalyzes a reaction do Substrates bind in the active site or do Products bind in the active site?
Substrates. Once the enzyme and the substrate combine, on the product is created.
What does Active Site mean?
The active site on an enzyme is the place where the enzyme binds the substrate and the chemical reaction takes place that changes the substrate(s) into the products of the reaction.
If lactase breaks down lactose and galactose then the enzyme sucrase breaks down?
The enzyme sucrase breaks down sucrose. Glucose and fructose are the products of this chemical reaction.
What does a substrate do?
A subtrate is a reactant an enzyme acts off of. This fits into the active site and turns into the products
Is the enzyme activity same at 5 and 25 Centigrade temperature in water?
The specific activity of an enzyme at a specific temperature will be dependent on both the temperature the enzyme is operating at as well as the concentrations of the substrates (the starting materials of the reaction that the enzyme catalyzes) and products (the end materials of the reaction) present around the enzyme. However, as a general rule, the activity of an enzyme will be different at at 5 centigrade than it will be at 25 centigrade.
What determines an enzyme's functions and how many functions does one enzyme have?
An enzyme has only one substrate that it works with so it has only one function. This is called a lock and key mechanism. Other things can affect the enzyme such as temperature, pH level and levels of either the substrate or the products. High temperature can denature the enzyme (they are proteins). They can not fit the lock (substrate).
What determines an enzyme function and how many functions does one enzyme have?
An enzyme has only one substrate that it works with so it has only one function. This is called a lock and key mechanism. Other things can affect the enzyme such as temperature, pH level and levels of either the substrate or the products. High temperature can denature the enzyme (they are proteins). They can not fit the lock (substrate).
What is a sequence of enzyme-mediated chemical reactions called?
An orderly sequence of reactions with specific enzymes acting at each step is metabolic pathways. A metabolic pathway has an orderly sequence of reaction steps, that may be biosynthetic or degradative, which uses specific enzymes for each reaction step.
What happens to an enzyme after it catalyses a reaction and turns substrate into products?
They remain in their original form. They do njo change
