Table of Contents
- 1 Why are enzymes used in medicine?
- 2 Why presence of enzymes does not affect on the nature and properties of end product?
- 3 Why do enzymes have a maximum rate of reaction?
- 4 How are enzymes genetically altered for the use of industry?
- 5 How might differences in enzyme concentrations affect rates of photosynthesis and respiration?
- 6 Why are enzymes so specific in their action?
- 7 How does an enzyme change the activation energy of the reaction does it increase decrease or remain the same?
- 8 Does adding more enzyme increase rate reaction?
- 9 What are enzymes as drugs?
- 10 Why are enzymes such an attractive target for drug therapy?
- 11 Can enzymes be stopped by inhibitors?
Why are enzymes used in medicine?
Enzymes are the preferred markers in various disease states such as myocardial infarction, jaundice, pancreatitis, cancer, neurodegenerative disorders, etc. They provide insight into the disease process by diagnosis, prognosis and assessment of response therapy.
Why presence of enzymes does not affect on the nature and properties of end product?
Enzymes are biocatalysts of protein in nature, which accelerate the rate of biochemical reactions but do not affect the nature of final product. Like catalyst the enzymes regulate the speed and specificity of reaction without being used up but unlike catalysts enzymes are produced by the living cells only.
Why is it important that enzymes are not changed by the reactions they control?
Enzymes lower the activation energy of the reaction but do not change the free energy of the reaction. It is important to remember that enzymes do not change whether a reaction is exergonic (spontaneous) or endergonic. This is because they do not change the free energy of the reactants or products.
Why do enzymes have a maximum rate of reaction?
Introduction: Enzymes are proteins that speed up the rate of a chemical reaction without being used up. Importance: The rate of a chemical reaction is affected by the total number of enzymes as well as the concentration of substrates. This implies enzymes greatly increase the reaction rate.
How are enzymes genetically altered for the use of industry?
In order to be used by the industry, enzymes can either be extracted from plant and animal sources or they can be obtained through fermentation using bacterial or fungal strains, for which both wild-type (WT) or genetically modified (GM) strains, which have been optimized to increase the protein production and limit …
Why enzymes are used in industry?
Enzymes are used in the food, agricultural, cosmetic, and pharmaceutical industries to control and speed up reactions in order to quickly and accurately obtain a valuable final product. Enzymes are crucial to making cheese, brewing beer, baking bread, extracting fruit juice, tanning leather, and much more.
How might differences in enzyme concentrations affect rates of photosynthesis and respiration?
The chemical reactions involved in photosynthesis are controlled by enzymes . As temperature increases the number of collisions increases, therefore the rate of photosynthesis increases. However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis.
Why are enzymes so specific in their action?
Enzymes are specific because different enzymes have differently shaped active sites. The shape of the active site of an enzyme is complementary to the shape of its specific substrate . This means they are the correct shapes to fit together.
What would happen if we didn’t have enzymes?
Enzymes allow reactions to occur at the rate necessary for life. In animals, an important function of enzymes is to help digest food. Without digestive enzymes, animals would not be able to break down food molecules quickly enough to provide the energy and nutrients they need to survive.
How does an enzyme change the activation energy of the reaction does it increase decrease or remain the same?
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Does adding more enzyme increase rate reaction?
Enzyme concentration: Increasing enzyme concentration will speed up the reaction, as long as there is substrate available to bind to. Substrate concentration: Increasing substrate concentration also increases the rate of reaction to a certain point.
How does an enzyme affect the rate of a chemical reaction?
What are enzymes as drugs?
The enzyme as drug: application of enzymes as pharmaceuticals Enzymes as drugs have two important features that distinguish them from all other types of drugs. First, enzymes often bind and act on their targets with great affinity and specificity. Second, enzymes are catalytic and convert multiple target molecules to the desired products.
Why are enzymes such an attractive target for drug therapy?
Hence human enzymes are also commonly targeted for pharmacological intervention in many diseases. Enzymes, then, are attractive targets for drug therapy because of their essential roles in life processes and in pathophysiology.
How many drugs derive their therapeutic efficacy from enzyme inhibition?
Indeed, a survey reported in 2000 found that close to 30\% of all drugs in clinical use derive their therapeutic efficacy through enzyme inhibition (Drews, 2000).
Can enzymes be stopped by inhibitors?
Sometimes, enzymes can be stopped by inhibitors. In a process called allosteric feedback, the end product that the enzyme makes actually stops the enzyme from working. This way, when enough product is made, the enzyme doesn’t keep making more of something the body doesn’t need.