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Importance of enzymes in living organisms
Medical application of enzymes
The use of enzymes in industry, medicine, engineering, agriculture
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Recommended: Importance of enzymes in living organisms
The Advantages and Disadvantages of Using Enzymes in Medicine and Industry
What is an enzyme?
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In relative terms enzymes are biological catalysts; control the rate
of chemical reaction, different temperatures and pH’s affect their
optimum rate of reaction in living organisms.
In detail; enzymes are globular proteins, which catalyse chemical
reactions in living organisms, they are produced by living cells –
each cell has hundreds of enzymes. Cells can never run out of enzymes
as they or used up in a reaction. Enzymes work by lowering the
activation energy required by molecules to start the reaction off.
Enzymes also react (reversibly) with substrates (The molecule(s) that
the enzyme is catalysing) this is done by forming Enzyme-substrate
complex, which is then broken down into products. As well as being
affected by temperature and pH enzymes optimum rate of reaction is
also changed by competitive and non competitive inhibitors.
Competitive inhibitors inhibit the enzyme so that enzyme-substrate
complex’s cant form until it’s unblocked or there is a change in
concentration in substrate, this means it takes longer to reach the
optimum rate of reaction. Non – competitive inhibitors change the
globular shape of an enzyme so that a enzyme-substrate complexes can’t
form meaning a lower optimum rate of reaction.
Enzymes in Medicine
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Enzymes can have good and bad effects to the body; it depends on the
situation that they are being used in.
For example some bacteria is a lot more dangerous than others because
of certain enzymes that they contain, meaning that they can do things
such as (depending on the enzyme) duplicate faster, inhibit other
enzymes and break down substrate’s that should not be broken down etc,
in general cause more damage to its holder.
The unusual presence of an enzyme can give a diagnostic to a disease.
For example if the liver is damaged or diseased then some of its
enzymes will leak into the bloodstream. A blood test will check for
this and give the doctor an idea as to what has happened.
Enzymes are biology catalysts which speed up the rate of a reaction (BBC News). Catalase is an enzyme which is found in one’s body and can destroy any harmful substances. Without catalase, many toxic materials could attack and mutate DNA. Catalase is located in the hepatic and when mixed with hydrogen peroxide, it breaks it down into oxygen and water. When the reaction happens it follows this equation: 2H2O2 → 2H2O + O2 ("Catalase.").
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Enzymes in general are very interesting to learn from and are fundamental in carrying out processes in various organisms. Enzymes are proteins that control the speed of reactions, they help quicken the rate of the reaction and also help cells to communicate with each other. There are 3 main groups of enzymes, first are the metabolic enzymes that control breathing, thinking, talking, moving, and immunity. Next are the digestive enzymes that digest food and normally end with –ase, there are 22 known digestive enzymes and examples of these are Amylase, Protease, and Lipase. The final group are the Food or plant enzymes which is what my enzyme that I’m studying falls under. Papain gets its name because it comes from papaya fruit, its main purpose is to break down proteins and break peptide bonds however it is not only used in the Papaya fruit and has many external uses. It was also very helpful in the 1950s when scientists were trying to understand enzymes. It also helps us to this day understand Protein structural studies and peptide mapping. Without enzymes, reactions in the body would not happen fast enough and would tarnish our way of life which is why it is vital that we study and learn from them.
All the systems in the human body work together to maintain homeostasis and normal body function. The five major systems are the digestive, circulatory, respiratory, transportation and excretory systems. These systems are then, in turn made of organs, tissue and cells. All the systems are interrelated therefore if one system fails then it impacts the others.
Enzymes have been used in research, mainly because of their ability to facilitate reactions without being changed themselves as well as their ability to speed up these reactions, which would otherwise take a much longer period of time to complete. And it is these two features that compel me to conduct further research into the applications of enzymes.
In this lab, it was determined how the rate of an enzyme-catalyzed reaction is affected by physical factors such as enzyme concentration, temperature, and substrate concentration affect. The question of what factors influence enzyme activity can be answered by the results of peroxidase activity and its relation to temperature and whether or not hydroxylamine causes a reaction change with enzyme activity. An enzyme is a protein produced by a living organism that serves as a biological catalyst. A catalyst is a substance that speeds up the rate of a chemical reaction and does so by lowering the activation energy of a reaction. With that energy reactants are brought together so that products can be formed.
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Enzymes are types of proteins that work as a substance to help speed up a chemical reaction (Madar & Windelspecht, 104). There are three factors that help enzyme activity increase in speed. The three factors that speed up the activity of enzymes are concentration, an increase in temperature, and a preferred pH environment. Whether or not the reaction continues to move forward is not up to the enzyme, instead the reaction is dependent on a reaction’s free energy. These enzymatic reactions have reactants referred to as substrates. Enzymes do much more than create substrates; enzymes actually work with the substrate in a reaction (Madar &Windelspecht, 106). For reactions in a cell it is important that a specific enzyme is present during the process. For example, lactase must be able to collaborate with lactose in order to break it down (Madar & Windelspecht, 105).
Enzymes are protein molecules that are made by organisms to catalyze reactions. Typically, enzymes speeds up the rate of the reaction within cells. Enzymes are primarily important to living organisms because it helps with metabolism and the digestive system. For example, enzymes can break larger molecules into smaller molecules to help the body absorb the smaller pieces faster. In addition, some enzyme molecules bind molecules together. However, the initial purpose of the enzyme is to speed up reactions for a certain reason because they are “highly selective catalysts” (Castro J. 2014). In other words, an enzyme is a catalyst, which is a substance that increases the rate of a reaction without undergoing changes. Moreover, enzymes work with