stained water moves through the cellulose bag due to osmosis. The iodine is there so we can see this happening. Materials: * Dialysis(cellulose) tubing * Thistle funnel * Gas jar * Retort clamp and stand * Rubber bands * 50mL beaker * Iodine/potassium iodine solution * 5% starch solution Method: 1) Fill the gas jar to 3 quarters full with water. Add iodine solution until the water is quite yellow/brown. 2) Moisten the cellulose tubing and tie a knot at 1 end
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Because plant cells have tough cellulose cell walls and herbivore are not able to digest‚ they use micro- organisms that live symbiotically to break down cellulose in fermentation process into nutrients | Fore- gut fermenter | Hind-gut fermenter | Location of caecum | Carry out digestion in a chamber- rumen‚ before the true stomach (abomasum). The ruminant stomach consists of four separate compartments divided by sphincters‚ rumen is one of them. | Carry out cellulose digestion in the caecum‚ a
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PUSAT PENGAJIAN TEKNOLOGI INDUSTRI IMG 103/3 FOOD CHEMISTRY LAB REPORT Experiment 3 : Qualitative Test for Carbohydrate Date of Experiment: 27/03/2013 Date of Submission: 17/04/2013 Submitted by: Name: Te Hui Min Matric No.: 115615 Group: 4 Title Qualitative test for carbohydrate Introduction Carbohydrates are essential in foods as an energy source (starch is the main source of human calories)‚ a flavouring (simple sugars are usually sweet) and as a functional
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other unnecessary things are removed‚ what’s left is a natural polymer of pure cellulose. Cellulose is the structural component of the cell walls of green plants‚ many forms of algae and the oomycetes. Some species of bacteria separate it to form biofilms. Cellulose is the most common organic compound on Earth. About 33% of all plant matter is cellulose (the cellulose content of cotton fiber is 90%). This cellulose is arranged in a way that gives cotton unique properties of strength‚ durability
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stage one raw materials must be converted to sugars through a process that is known as fermentation. Sugars in the form of sucrose are mostly used by humans (Alexander N.Glazer). Sugar cane and sugar beet are composed of 20% sucrose‚ 75% water‚ 5% cellulose and about 1% is inorganic salts (Alexander N.Glazer). Sucrose is extracted with water by using mechanical pressure from the sugarcane. On the other hard the beet is peeled and crushed. Sucrose that was extracted from sugarcane is a highly effective
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of the following is true of enzymes and substrates? You correctly answered: c. Enzymes are specific about the substrates they can act upon. 2. Which of the following is/are reducing sugars? You correctly answered: e. both glucose and maltose 3. Cellulose and starch are both You correctly answered: e. polymers of glucose and polysaccharides. 4. Proteins and peptides are formed by joining amino acids with a special type of covalent bond called a peptide bond. Which of the following enzymes do you think
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some instances and phenomena whose explanation can be made possible only with the help of Physics. What happens when sheets of paper‚ long rolled up into a tube‚ are unrolled but simply won’t ever lie flat again? Paper consists mostly of cellulose‚ a natural polymer (i.e. plastic) built by stringing together thousands of individual sugar molecules into vast chains. Like the sugars from which it’s constructed‚ cellulose’s molecular pieces cling tightly to one another at room
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each treatment were subjected to physical‚ chemical and mechanical analyses. The results showed that the alpha-cellulose content of kenaf fibres for the four varieties ranged from 59.91-¬ 60.410% for Control; 60.38
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Disaccharides Sucrose A crystalline disaccharide of fructose and glucose‚ C12H22O11‚ found in many plants but extracted as ordinary sugar mainly from sugarcane and sugar beets‚ widely used as a sweetener or preservative and in the manufacture of plastics and soaps‚ also called saccharose. Sucrose is one of the main products of photosynthesis and the most common transport sugar in plants. It is also a no reducing disaccharide‚ and is synthesized in the cytosol via the phosphorylated intermediate
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the reaction shown. Is this reaction exothermic or endothermic? CO2 + 2 H2O → CH4 + 2 O2 This reaction is endothermic 26. Why can’t we digest fiber? We cannot digest fiber because we lack the enzyme capable of breaking the sugar linkages in cellulose. 32. Why is unsaturated fat considered much healthier than saturated or trans fat? Unsaturated fat provides benefits of fat in the diet without the risk of cardiovascular disease and increased LDL/HDL ratio. 38. For optimal heart health‚ should
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