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Essays in Molecules & Cells category
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The Use of Enzymes in Medicine
... Biosensors can be used as medical analytical reagents to test the concentration of glucose in urine for diabetes. 'A test strip is used which contains a chemical indicator called toluidine and the enzyme glucose oxidase.' (http://www.bbc.co.uk/dna/h2g2/A3328355). The test trip is ...
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The use of enzymes in the diagnosis of disease is one of the important benefits derived from the intensive research in biochemistry since the 1940's
... they have. Uses of enzymes in medicine include: • Analytical tests: Diabetics use strips of paper impregnated with glucose oxidase to monitor their blood sugar. • The presence of enzymes where they should not be present can also help to ...
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The use of enzymes industrial processes
... making shows their value in quality control and efficiency of production. Use in alcohol-1 In the alcohol industry, fermentation depends on the action of enzymes helped by the yeasts and bacteria used in the production process. Beer brewing essentially involves the yeast ...
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The use of pectinase in fruit juice production
... complementary shape can fit in. This is called lock and key mechanism and suggests that one enzyme can only catalyse one reaction. However, enzyme slightly changes its shape when substrate binds to its active- site. This process is known as ...
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The use of pectinase in fruit juice production
... only fits into a specific lock, each enzyme has its own specific lock; each enzyme has its own specific substrate. This is called the lock and key theory. The enzymes never actually get consumed in the process; they just increase ...
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The use of pectinase in fruit juice production
... Aspergillus niger. The pectinase enzymes act in different ways on the pectins, for example they help soften their cell walls (they break down the cell walls). (The products of such enzyme assaults also act as a signal which causes uninfected ...
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The use of protein digesting enzymes (proteases) in industry
... most widely used enzymes is papain from the latex of papaya plant. Papain can be added prior to slaughter by injection or after slauter. [3] Proteases are also added to flours. The protein content of flour is largely responsible for the ...
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The uses of enzyme in industry
... industry is that they need to be exceptionally hygienically clean to avoid contamination this is known as using aseptic techniques, slight changes in the delicate pH balance or temperature increase may lead to a possibility of rendering the enzyme batch ...
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The Uses of Enzymes in Industry
... to make consistently high-quality products by enabling better dough handling, providing anti-staling properties, and allowing control over crumb texture and colour, taste, moisture, and volume. The enzyme rennin is used to clot milk in cheese-making, and enzymes from yeast have ...
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The Uses of Enzymes In Industry, Medicine and Analytical and Diagnostic Processes.
... added which break down substances in the food which the species body cannot digest. Many foodstuffs for farm animals such as wheat, rye, barley and oats contain non-starch polysaccharides (NSPs) which are an example of ANFs (anti-nutritional factors). They cannot ...
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The Uses of Enzymes In Industry, Medicine and Analytical and Diagnostic Processes.
... added which break down substances in the food which the species body cannot digest. Many foodstuffs for farm animals such as wheat, rye, barley and oats contain non-starch polysaccharides (NSPs) which are an example of ANFs (anti-nutritional factors). They cannot ...
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The ways in which organisms use ATP
... the cell needs to exist. ATP is also used as an on-off switch both to control chemical reactions and to send messages. The shape of the protein chains that produce the building blocks and other structures used in life is mostly ...
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Theeffects of amylase concentration on the breakdown of starch
... an active site. Active sites are areas on an enzymes surface that are specially designed to bond with the substrate molecules, to allow the substrate to be acted upon, in this case starch. In order for this reaction to occur ...
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theme 1 :concept of the human cell
... DNA molecules that are found in the nucleus. The nucleus has its own membrane called the nuclear membrane that is very similar to the cell membrane. This membrane keeps the DNA separated from organelles of the cytoplasm. Mitochondria. The mitochondria make the ...
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There are 2 basic cell types.
... the site of the synthesis of many substances in the cell and so provides a compartmentalised area in which this takes place. The cavities also function as a transporting system whereby substances can move through them from one part of ...
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There are five major groups of compounds that compose the human body. They are carbohydrates, lipids, proteins, nucleotides, and water. These are all very important to humans and without them we would not be able to survive
... cells, sugars are the most important source of energy. Lipids are important because they function as structural components of cell membranes, sources of insulation, and a mean of energy storage. The lipid molecules are most well known as forming ...
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There are four main families of receptors: ligand-gated ion channels, G-protein coupled receptors, kinase-linked receptors and nuclear receptors.
... shape enabling it to fit into a receptor site, causing a pharmalogical response. Drugs can be categorised into two groups by analysing their effect on the receptor when acting on specific receptors. The first of the two groups being agonist ...
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This coursework observes the reaction between starch and amylase and looks, how when adapted, the input variable effects the rate of reaction.
... particles of amylase to collide with the starch, which are there to break the starch down faster. Preliminary work Before conducting my actual experiment I ran a preliminary test to base my prediction upon. This was basically to check that my measurements ...
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This experiment aims to determine the effect an increasing temperature has on a typical plant cell structure.
... is now accepted as the basis of our understanding of cell membranes: It is understood as an asymmetrical mosaic of lipids and proteins. The membrane shows fluid behaviour because of movements and packing variations among its lipids and proteins. The lipid ...
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This experiment aims to determine what effect an increase in the surrounding temperature has on the plasma membrane of a typical plant cell structure.
... them to grow, produce energy, and eliminate waste. Together these reactions are termed metabolism (from a Greek word meaning, "change"). All cells contain hereditary information, encoded in molecules of deoxyribonucleic acid (DNA), that directs the cell's activities and enables it ...
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This experiment is to find out how different temperatures affect the rate at how an enzymes activity differs , using catalase and hydrogen peroxide.
... is found in any living cells. The temperature, UV light, movement and surface area are factors which would affect the way it works. Aim: The aim of this experiment is to find out how temperature affects hoe an enzyme works. ...
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This experiment was setup to investigate the effects of temperature on the rate of respiration of blowfly larvae
... is the name for any molecule upon which an enzyme has an effect.) Enzymes sometimes become denatured. This is when a certain factor affects the bonds holding the amino acids together, and they start to break, eventually resulting in the ...
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This is an experiment to examine how the concentration of the substrate Hydrogen Peroxide (H2O2) affects the rate of reaction of the enzyme Catalase.
... will no longer go up. This is because the maximum number of reactions are being done at once so any extra substrate molecules have to wait until some of the active sites become available. Predicted Graph BACKGROUND INFORMATION: A catalyst is a ...
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This is an experiment to show how different concentration of celery tissue enzyme, catalase breakdown the bonds of hydrogen peroxide, substrate, to produce oxygen given out at different rate of reactions.
... of the super oxide ion in living organisms. Enzymes are specific. Contrary to inorganic catalysts such as acids, bases, metals and metal oxides, enzymes are very specific. In other words, each enzyme can break down or synthesize one particular compound. In ...
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This is an investigation to determine the effect of concentration on the activity of an enzyme Trypsin on the insoluble protein found in milk known as Casein.
... Enzyme and Substrate Temperature The rate of an enzyme controlled reaction is measured upon the substrate used or the products formed over a period time. Increasing the temperature causes more heat energy, which makes the substrate molecules and enzymes move a lot ...