Genetic Modify Organisms Genetic Engineering Today many scientist use “genetic engineering” a new technology that manipulates the genes of many plants‚ bacteria and animals. This organisms are called genetic modified organism (GMOs) because their genetic material (DNA) has been changed in a way that it doesn’t occur naturally‚ it alters the organism’s genetic material through adding‚ deleting or changing the segments in the DNA. This technology is also referred to as "biotechnology" or "recombinant
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activity. We believed this because it seemed fitting that something which increased the role or speed of something would be affected by changes in something like temperature. A catalyst is a substance which changes the role or speed at which a reaction occurs. The catalyst in our experiment was the enzyme‚ catalase. An enzyme is a specialized protein which catalyzes reactions in cells. The enzyme in our experiment was catalase‚ which came from the potato juice. The function of an enzyme is to catalyze
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Reaction of catalase with hydrogen peroxide AIM: I aim to find the rate of reaction between catalase and hydrogen peroxide. Enzymes such as Catalase are protein molecules that are found in living cells. They are used to speed up specific reactions in the cells. Each enzyme just performs one particular reaction so they are all very specific. Catalase enzymes found in living cells e.g. in yeast‚ potato or liver‚ speed up (in our case) the breaking down of hydrogen peroxide. The lock and key analogy…
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antibiotics. For this reason‚ it is important to test and observe unknown organisms in the lab to continually improve the health and well being of society. The objective of this report was to first isolate a single colony of an unknown culture on a LB agar plate. From here‚ a slant was made and used for multiple types of testing in order to determine the identity of the unknown organism. The tests performed to identify the unknown organism included Gram Staining‚ Fluid thioglycollate/aero-tolerance test
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CH 12 TRANSPORT IN LIVING ORGANISMS EXERCISE 1. FILL IN THE BLANKS (i) The principal physiological requirement of all organisms is the maintenance of …………………… (ii) The type of diffusion against the concentration gradient (up hill movement) involving the expenditure of energy is called…………………. (iii) The cell walls of the plants cells keep the……………within limit. (iv) The content of the vacuole of plant cell is called……………. (v) The internal pressure exerted on the cell wall by the
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Bernard Stepteau Biology Lab 101/Th 8:00am – 9:50am 2-26-2014 Dr Laynes Hypothesis: As the temperature of the enzyme catalase rises the activity of the reaction will decrease. Objectives: The objective is to compare catalase activity at different temperatures. Introduction Catalase speeds the breakdown of hydrogen peroxide. Catalase is present in every plant and animal organ. This is useful because hydrogen peroxide is harmful to cells. Temperature effects the enzyme effectiveness
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Diversity in Living Organisms Q 1 Name the branch of the biology that deals with the classification. Q 2 Who was the first to propose the two-kingdom system of classification? Q 3 Who proposed three-kingdom classification? Q 4 What is meant by triploblastic? Q 5 What is haemocoel ? Q 6 Name the person who has given the five-kingdom classification. Q 7 Which is the largest phylum of animal kingdom? Q 8 What is the function of canal system in sponges? Q 9 What are Gymnosperms
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synthesizing the DNA‚ and then inserting this construct into the host organism. Genes may be removed‚ or "knocked out"‚ using a nuclease. Gene targeting is a different technique that uses homologous recombination to change an endogenous gene‚ and can be used to delete a gene‚ remove exons‚ add a gene‚ or introduce point mutations. An organism that is generated through genetic engineering is considered to be a genetically modified organism (GMO). The first GMOs were bacteria in 1973; GM mice were generated
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In order to get this‚ the stock solution‚ which was 3%‚ was diluted using 10 mL of hydrogen peroxide and 20 mL of water. In the second beaker‚ a ¼ dilution of potato extract was made using 2 mL of potato extract and 6 mL of water. The third plastic beaker contained 8 mL of water. Using the first and second beaker the experimental assay was performed. Using forceps a small paper disk was dipped into the second beaker containing the potato catalase for exactly 5 seconds. It was next dried on
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the rate of catalase activity The extent at which environmental factors affect the rate of catalase activity was discovered in this lab. The assay system‚ in which a filter paper disc was dipped into the enzyme and submerged using a stirring rod in a test tube filled with 20mL of hydrogen peroxide‚ was used to test several enzyme factors. As the saturation of hydrogen peroxide increased the rate of reaction increased as well. When the enzyme concentration increased the rate of catalase activity
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