Biology Form Four Digestion Digestion is the process by which food is broken down from complex insoluble substances into simple soluble substances. There are two types of digestion – chemical digestion and mechanical digestion. Mechanical digestion involves breaking up large pieces of food into smaller pieces. This provides a large surface area for the action of enzymes on food. There is no change to the chemical composition of food during mechanical digestion. Mechanical digestion occurs in
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sweetest chemical listed here? __________________________ 5) Lactose is found in milk. Why does milk not taste very sweet? Lactose free milk is milk that has been treated with an enzyme (lactase) to destroy the lactose so those who are intolerant can get all the benefits of real milk. Usually those people cannot breakdown lactose in their stomach and intestines because they lack the enzyme. The milk itself will be slightly sweet because lactose is not very sweet but the hydrolysis product are sweet.
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disease 2. BIOL1 : Basis of lung disease and lung function Pathogens 3. BIOL1 : Nature of pathogens and infection 4. BIOL1 : Cholera and dehydration 5. BIOL2 : Horizontal gene transfer and antibiotic resistance Genetics 6. BIOL1 : symptoms of lactose intolerance 7. BIOL2 : Formation of non-functional enzymes 8. BIOL5 : Risk factors for cancer‚ the nature of cancer‚ tumours suppressor and proto-oncogenes 9. BIOL5 : Mutations and disease (e.g. sickle cell anaemia (heterozygous advantage)
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several inferences made about the family’s dietary habits. The garbage collected can be that of a small family. While identifying the different pieces of trash‚ there were several items identified such as‚ a large Silk Pure Almond Milk‚ which was lactose and diary free. This packet weighted 77 grams; its length was 180mm and 90mm wide. Also‚ a small Nestle low fat milk box which is 28 grams; 160mm long and 90mm wide and a large pack of Nestle
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25%‚ 11.60%‚ 12.48% and 10.87% in milk yield‚ 3.71%‚ 5.43%‚ 13.43% and 4.57% in milk fat‚ 4.99%‚ 7.33%‚ 10.56% and 7.62% in milk protein and 1.36%‚ 2.57%‚ 4.98% and 2.97 in total solid of milk while decrease in 1.85%‚ 2.26%‚ 2.46% and 1.85% in milk lactose for different treatments T2‚ T3‚ T4 and T5 due to shatavari feeding. Treatment phases had more pronounced effect of supplementation than the residual phases. Thus‚ it may be concluded that Shatavari has lactogenic properties to improve the milk production
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reducing sugar is isomerisation‚example of reducing sugar islactose‚maltose‚glucose and fructose.All monosaccharides are capable of reducing other chemicals such as copper (II) sulphate to copper oxide.Beside that disaccharides such as maltose and lactose are reducing sugar‚however sucrose is non reducing sugar.Sugar exist in solution as an equliburum mixture of open chain and closed ring or in other words is cyclic structures.In the open chain form‚the carbon contains special bond called carbonyl
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Date: Wednesday‚ November 16‚ 2011 Holly Lawson - white Title: API 20E Introduction: The general principle of the experiment is to use a battery of biochemical tests for identification of enteric bacteria. This testing system consists of a strip containing 20 chambers‚ each consisting of a microtube and a cupule to allow testing of 20 different tests nearly simultaneously. Materials: inoculating loop‚ test tube containing 5 ml of sterile saline‚ wash bottle of water‚ plastic API
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happens more swiftly at warmer temperatures than it does at cold temperatures. Spoiled Milk All milk‚ even pasteurized milk‚ contains bacteria. As bacteria go about happily with their lives‚ they eat the natural sugars in milk‚ called lactose. As they digest lactose‚ a number of byproducts are created‚ including lactic acid. When the amount of lactic acid in the milk begins to increase‚ the pH drops and the casein molecules begin to clump. The high levels of lactic acid are also what give spoiled
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causing water to be pulled into the epithelial cells from the gut lumen‚ thus stopping diarrhoea. Diarrhoea is caused by an too high water potential in the lumen of the gut‚ often due to a movement of water by osmosis. In the case of lactose intolerance‚ when lactose is ingested it will not be broken down and continues along the gut‚ thus causing water to be pulled out of the cells and liquefying the stools (diarrhoea). Water is important in thermoregulation. When the thermoreceptors perceive an
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The rest of the product consists of small amounts of fat‚ milk sugar (lactose) and often sweeteners and flavorings. While this product is still excellent for building muscle‚ some may experience bloating and gas because of the lactose. Whey Isolate Whey isolates are a more pure extraction of whey proteins. Isolate powders consist of at least 90% pure whey proteins and some are 100% pure. The higher
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