التقييم التربوي الشامل لدولة قطر االختبار التجريبي 2013 اللغة االنجليزية الصف الحادي عشر ( متقدم ) English Reading/Writing Grade 11 Advanced WRITING STRATEGIES AND MECHANICS 1 Choose the words that belong in the blank. My brother was always fascinated by how the human heart works‚ so it was not surprising that he became _____________. A an audiologist B a cardiologist C a dermatologist D an anthropologist 2 Choose the words that belong in the blank. A new computer store is
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Part B: Practical Report The Effect of Temperature on Enzyme Activity Aim: To investigate how temperature effects the enzyme catalase. Hypothesis: If the temperature of water is increased then the enzyme will react quicker to form oxygen and water‚ when compared to cold water. Purpose: To design and conduct a plan of a practical about the effects of temperature on enzymatic activity with a partner. Introduction: An enzyme is a protein‚ which speeds up a specific chemical reaction without altering
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CXC School Based Assessment (Year 2013-2014) Name of Candidate:________________ School: __________________________ Centre #:________________________ Candidate#:______________________ Teacher: ________________________ Acknowledgement I would like to thank God for giving me the skills‚ resources and knowledge to carry out this investigation. I would also like to thank Mrs Johnson‚ my social studies teacher‚ and the social studies department for giving me the relevant information
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Bonnie Bell Mrs. Legary Biology P.6 21‚ Sept. 2011 Milk Lab Final This investigation consists of testing the reaction between milk‚ food coloring‚ and dishwashing soap. Different kinds of milk were tested‚ depending on the amount of milk fat content. The investigation was based on 2 questions. Lab one’s problem statement‚ using only milk fat and food coloring was: How does food coloring react in different kinds of milk fat? The second lab’s problem statement‚ using milk fat‚ food
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purpose of this experiment is to study how enzyme activity is affected by environmental conditions. Researchers tested the level of potato extract enzyme activity with 1-11 pH‚ varying temperature‚ catechol solution‚ hydroquinone solution‚ and different measurements of catechol. In Figure 1A and 1B‚ pH levels were tested with potato extract to see how pH would affect the amount of Benzoquinone is formed in the potato. Although it was hypothesized that enzymes would form Benzoquinone better in acidic
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Province of the EASTERN CAPE EDUCATION NATIONAL SENIOR CERTIFICATE GRADE 11 NOVEMBER 2012 BUSINESS STUDIES MARKS: 300 TIME: 3 hours This question paper consists of 10 pages. 2 BUSINESS STUDIES (NOVEMBER 2012) INSTRUCTIONS AND INFORMATION Read the following instructions carefully before answering the questions. 1. This question paper consists of three sections and covers all learning outcomes (LO1 to LO4). SECTION A: COMPULSORY SECTION B: Consists
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Discussion The primary purpose of this experiment was to determine the optimum temperature range for the activity of the enzyme lactase. Extreme temperatures can have a detrimental effect on enzymes; very hot temperatures can cause the denaturation in the enzyme‚ which is the loss of protein structure. This causes a change in the shape of the enzyme leading to its inability to perform its function. As previously stated‚ the alternate hypothesis read: the optimal temperature range for lactase activity
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Affect of enzyme concentration to the rate of reaction Aim: With the experiment of protein solution‚ in this case egg white added to different pepsin concentrations (0%‚ 0.2%‚ 0.4%‚ 0.6%‚ 0.8%‚ 1.0%) shows‚ as the egg white is a protein and the pepsin works as an enzyme‚ how a higher pepsin concentration and therefore a larger amount of enzymes effect the rate of reaction. Hypothesis: An increased concentration of pepsin speeds up the time the mixture needs to come clear. Introduction:
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Introduction Enzymes are proteins that are involved in all the chemical processes in living things. As they are made of proteins they are affected by pH and temperature. Enzymes are catalysts; they speed up chemical reactions without being changed themselves. Digestive enzymes speed up the breakdown of large food molecules into smaller ones so that the blood can absorb them. Enzymes turn a large starch molecule into thousands of tiny glucose molecules. Enzymes end in ’ase’. There are thousands of
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Name __________________________________ AP Biology Period _________ Date ______________________ AP: LAB-RELATED AP EXAM ESSAYS LAB 1. OSMOSIS AND DIFFUSION ESSAY 1992 A laboratory assistant prepared solutions of 0.8 M‚ 0.6 M‚ 0.4 M‚ and 0.2 M sucrose‚ but forgot to label them. After realizing the error‚ the assistant randomly labeled the flasks containing these four unknown solutions as flask A‚ flask B‚ flask C‚ and flask D. Design an experiment‚ based on the principles of diffusion
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