homozygous recessive gid1-1 plants fail to degrade the protein SLR1 which‚ when present‚ inhibits the action of gibberellin. The graphs show the action of gibberellin on the leaves and α-amylase activity of wild-type rice plants (WT) and their gid1-1 mutants. 12 10 50 8 Length of second leaf / cm 60 40 6 α-amylase activity / 30 units seed–1 WT 20 4 2 0 WT 10 gid1-1 0 10–9 10–8 10–7 10–6 10–5 10–4 Gibberellin concentration / mol dm–3 0 gid1-1 0 10–1110–1010–910–810–7 10–6 10–5 Gibberellin
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conditions – the conditions that an enzyme works best at including pH‚ substrate concentration‚ salt concentration‚ presence of inhibitors‚ activators and cofactors and temperature. 11. Amylase catabolizes starch polymers into smaller subunits. Most organisms use these saccharides as a food source and to store energy. Amylase can be found in the saliva of humans and other mammals. (starch > sugar) a.
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Cited: Amylase. (2013). Encyclopedia Americana. Retrieved February 28‚ 2013‚ from Grolier Online http://ea.grolier.com/article?id=0014160-00 Arnon‚ D Bonner‚ J. (2013). Cellulase. Encyclopedia Americana. Retrieved February 28‚ 2013‚ from Grolier Online http://ea
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change shape / enzyme is denatured Charges on amino acids can change‚ ES complex cannot form Optimum pH pH 7 for intracellular enzymes Acidic range (pH 1-6) in the stomach for digestive enzymes (pepsin) Alkaline range (pH 8-14) in oral cavities (amylase) Increased Temperature Increases speed of molecular movement → chances of molecular collisions → more ES complexes Enzymes have optimum temp. for their action (varies between different enzymes) Above ≈42°C‚ enzyme is denatured due to heavy
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biotechnology: An overview. In Handbook of applied mycology (pp Ende‚ H. V. D.‚ & Stegwee‚ D. (1971). Physiology of sex in Mucorales. The Botanical Review‚ 37‚ 22–36. Ezeogu‚ L. I.‚ Okolo‚ B. N.‚ & Mba‚ C. N. (1995). Production of raw starch digesting amylase by Aspergillus niger grown on native starch sources
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Full report on BIOINFORMATICS PURIFICACION‚ MARYNOLD V. CHEM 161.1 3L 2nd Semester AY 2012-1013 GROUPMATES: Donato‚ Lualhati M. Diaz‚ Manuelle Marie C. Date Submitted: March 8‚ 2013 Laboratory Instructor: Ms. Herra Grajo I. INTRODUCTION Bioinformatics is the branch of biological science which deals with the study of methods for storing‚ retrieving and analyzing biological data‚ such as nucleic acid (DNA/RNA) and protein sequence‚ structure‚ function‚ pathways and genetic
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process of digestion of proteins‚ carbohydrates and lipids in humans. (Total 6 marks) 4. Draw a labelled diagram of the digestive system. (Total 5 marks) 5. State the sources‚ substrate‚ product‚ and optimum pH conditions for the enzyme amylase. (Total 4 marks) 6. Describe the role of enzymes in digestion with reference to two named examples. (Total 5 marks) 7. What sequence of organs do substances pass through‚ as they move through the human digestive system? A. Mouth ® stomach
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catalyse different reactions. The table below shows three enzymes and which reaction they catalyse. Enzyme Reaction catalysed Amylase Starch → sugars Protease Proteins → amino acids Lipase Lipids → fatty acids + glycerol Different parts of the gut produce different enzymes. The table below shows where three different enzymes are produced. Enzyme Where produced Amylase Salivary glands‚ pancreas‚ small intestine Protease Stomach‚ pancreas‚ small intestine
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activity of Polyphenol Oxidase and Peroxidase when mixed with catechol‚ caffeic acid‚ pyrogallad‚ tyrosine‚ guacol‚ and water‚ to test the effect of inhibitors on these enzymes‚ to show the specificity of Polyphenol Oxidase and also the effect of amylase on starch. Theory: Enzymes are large molecules that increase the rates of chemical without themselves undergoing any change (Bettelheim‚ Brown‚ Campbell and Farrell 2010). Enzymes are the catalyst of biological processes; they bring the reaction
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Digestive System Enzymes Digestion of Carbohydrates in relation to Ph. levels 2012 HAUBER-SIX‚ Janina Queensland Government 1/1/2012 Digestive System Enzymes Digestion of Carbohydrates in relation to Ph. levels 2012 HAUBER-SIX‚ Janina Queensland Government 1/1/2012 The follow experiment was prepared‚ conducted and analysed in order to test at which pH level starch will be digested at fastest. The digestive system is a complex network of organs as well as other structures
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