QUESTIONS 1. What are other sources of glycogen? Of starch? a. Other sources of glycogen- Aside from the liver‚ it can also be found in skeletal muscles (for energy during strenuous exercise). It also occurs in tissues including adipose tissues‚ heart muscles‚ kidneys and the brain. It is also found in yeast‚ bacteria‚ fungi‚ molds and algae‚ oysters‚ and shellfish. b. Other sources of starch- Foods that are high in starch include breads‚ grains‚ cereals‚ pasta‚ rice‚ potatoes‚ peas
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have a structure formed by one or more polypeptide chains whilst a polypeptide is a chain of amino acids. b) Fat and oil differences: They are both lipids‚ but fats are solid whilst oil are liquids. c) Difference between starch and glycogen: Starch is a polysaccharide found in plant tissue whilst glycogen has polysaccharide found in animals. d) Condensation and hydrolysis: Condensation is a chemical process by which 2 molecules are joined together to make a larger‚ more complex
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organ of the alimentary canal The alimentary canal includes the mouth‚ pharynx‚ esophagus‚ stomach‚ small intestine‚ large intestine‚ andanal canal Mouth Food enters the digestive tract through the mouth. The labia (lips) protect its anterior opening‚ the cheeks form its lateral walls‚ the hard palate forms its anterior roof‚ and the soft palate forms its posterior roof. The space between the lips and cheeks externally and the teeth and gums internally is the vestibule. The area contained by
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Hydrolysis Report Bile Esculin Hydrolysis‚ Starch Hydrolysis‚ UreaHydrolysis‚ Casein Hydrolysis Hydrolysis Report Introduction Hydrolysis is a chemical reaction that uses water to split complex molecules. The water molecule H2O is split in the mechanism of hydrolysis‚ hydrogen cations and hydroxide anions. When the enzyme catalyzes its reaction inside the cell‚ it is referred to as intracellular hydrolases. When the enzymes secreted from the organism to catalyze reactions outside the cell‚ it
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of such assays. Results [R1]: Table 1.0 - Quantitative Results for the Concentration (g/L)‚ Mass (mg) and Absorption Collected From the Separation of a Glucose and Starch Solution by Dialysis. A cellophane dialysis tube (1.6 cm diameter‚ 2.0 mL/cm‚ MW cut-off:12000-14000) was clipped on both ends and filled with 10 mL of a starch‚ glucose solution after being soaked in water for 5 minutes to remove any storage additives. The dialysis tube was placed within a 200mL beaker filled with distilled
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results? The predicted results and the actual results were the same. Exercise 2: Testing for Sugars Observations Data Table 2: Benedict’s Reagent Results. Test Sample Predicted Results Benedict’s results #1 Glucose Contains sugars Red #2 Starch Contains sugars Blue # 3 Onion juice Does not contain sugars Orange #4 Distilled Water Does not contain sugars Blue Which substances
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PURPOSEThe purpose of the lab is to learn how to determine the presence of glucose‚ starch‚ lipid‚ and protein in various samples through standard tests. MODIFICATION1. Protein solution‚ vegetable oil‚ glucose solution‚ sucrose solution‚ starch solution and distilled water were added separately into six marked test tubes. The volume added was about one finger thick in depth of a test tube. 2. 5 drops of Iodine solution was added to each test tube. 3. The sample’s reaction with iodine was recorded
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using cassava starch? ABSTRACT The study aims to produce biodegradable plastic using cassava starch as its main component. Cassava starch was mixed with water‚ epoxydized soya beanoil (ESBO)‚ glycerol‚ and polyvinyl alcohol (PVA). The mixture was then compressed and tested. Three preparations were made from the mixture. The first preparation contained 50 grams starch‚ 50 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2.5 grams glycerol. The second preparation contained 65 grams starch‚ 65 grams water
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May 2011 10:53 Reptiles & Amphibians = swallow food whole Mammals = cut up and chew (palate separates nasal cavity & mouth - kept in mouth longer) Carnivore = short gut (easily digest protein) Herbivore = long gut (plant digestion difficult) Dentition Mechanical digestion = easier to swallow & increases surface area for enzyme action Herbivore Incisors Canines Lower jaw‚ cuts against horny pad (upper jaw) Indistinguishable from incisors Carnivore Sharp (tear flesh from bone) Large‚ curved‚
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Table 1 : The presence of starch and reducing sugar in the solution Observation Conclusion Solution A Benedict’s test : The transparent blue solution turns into opaque brick-red precipitate Iodine’s test : The clear colourless solution turns into transparent yellowish-brown solution. The pure colour of the solution is clear colourless solution and the transparent yellowish-brown colour is the iodine’s colour. There is presence of reducing sugar whereas absence of starch Solution B Benedict’s
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