CIE IGCSE Biology Unit 20 - Biotechnology Flashcards | Quizlet- facts on biological washing powders igcse biotechnology paper ,biological washing powders contain __________ which break down biological molecules. This means they can be used at lower __________________, saving energy. lactase _______________________ is used to produce lactose-free milk which can be consumed by people who are lactose-intolerantIGCSE CIE Biology Revision Notes - IG ExamsCIE IGCSE Biology: Revision Notes CIE IGCSE Biology > Revision Notes Concise revision notes for the CIE IGCSE 0610/0970 Biology course 1. Characteristics & Classification of Living Organisms 2. Organisation of the Organism 3. Movement In & Out of Cells 4. Biological Molecules 5. Enzymes 6. Plant Nutrition 7. Human Nutrition 8. Transport in Plants […]
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Advantages of using biological washing powders: 1. More effective in cleaning stains than ordinary detergents 2. Needed in small quantities only. 3. They save energy as they can be used to wash clothes at lower temperatures. Disadvantages of using biological washing powders: 1. Temperature needs to be carefully controlled. 2.
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(d) Some biological washing powders contain lipase. Instructions on the packet state that biological washing powders should be used in warm water but not in very hot water. Explain why warm water should be used instead of very hot …
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27/07/2019·Biological washing powders. Biological washing powders are washing washing powders that contain enzymes (mainly proteases & lipases) in order to break down …
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biological washing powders igcse biotechnology blue powder. Cooperation partner. Biology Notes For Olevel- biological washing powders igcse biotechnology blue powder ,Biological washing powders contain enzymes that break down the insoluble stain into smaller soluble substances, which are then dissolved in the water.For example, if your shirt gets stained by …
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Detergents that only contain soap can remove some of these stains when mixed with hot water, but it can take a lot of time and effort and very high temperatures to remove the stains entirely Biological washing powders contain enzymes similar to the digestive enzymes produced in the alimentary canal that help to break down large food molecules
Use in biological washing powders - Biology Notes for …
Answer: a) i) - Protease and lipase are enzymes -They break down stains better than ordinary detergents - Protease breaks down protein; lipase breaks down fats ii) - Enzymes are denatured at high temperatures b) - There is protease in the …
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Cambridge IGCSE™ BIOLOGY 0610/21 Paper 2 Multiple Choice (Extended) May/June 2020 45 minutes ... 14 Biological washing powder can be used to remove stains on clothing. Which enzymes will remove stains caused by starch, fat and protein? amylase lipase trypsin A key
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We know which washing powders have these enzymes added because they are called “biological washing powders”. The enzymes are added because of their ability to speed up …
What is biological washing powder? – Laundry Detergent and …
Biological washing powder is Laundry powder with enzyme preparation added to washing powder. At present, the commonly added enzyme preparation is a protease, which has obvious effects on removing human secretions commonly found in collars and cuffs, as well as protein dirt such as blood, milk, grass juice and various foods.
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answer choices to produce alcohol to produce carbon dioxide to use up oxygen to use up sugar Question 18 30 seconds Q. A food stain on a tablecloth is where meat cooked in oil has been split. It is washed in biological washing powder. What combination of enzymes should be present in the washing powder to remove the stain? answer choices
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Learners should pursue a fully unified course which enables them to build their practical skills by carrying out practical work and investigations within all of the topics listed when doing these 0610 IGCSE Biology past year papers. Candidates should expected to do the following: 1 Characteristics and classification of living organisms Read More
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Mark Scheme of Cambridge IGCSE Biology 0610 Paper 41 Summer or May June 2019 examination. ... IGCSE - Cambridge International Examination View full screen ...
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IGCSE Biology Notes. Biological washing powders: contain less chemicals, which is good for sensitive skin. contain enzymes and detergents. detergents help remove grease and dirt by …
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Biological washing powders: contain less chemicals, which is good for sensitive skin. contain enzymes and detergents. detergents help remove grease and dirt by mixing them with water, so they can be washed away. enzymes known as proteases are also present, which catalyse the breakdown of proteins, such as blood stains [haemoglobin].
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05/01/2018·facts on biological washing powders igcse biotechnology notes. Edexcel IGCSE 2009 - Pearson qualifications. The Edexcel IGCSE in Biology is designed for use in schools and colleges. It is part of the ... • To give students a knowledge and understanding of biological facts, concepts and ... in biological washing powders, malnutrition, obesity ...
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The Facts About Laundry Detergents and How They Work | Persil
Most biological laundry detergents contain lipase and protease enzymes, both of which are found in the body. Lipases break down fats and oils, while proteases work to break down protein chains. Their ability to break down these compounds makes them excellent for stain removal. Why Are Enzymes Used in Biological Washing Powder?
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(d) Some biological washing powders contain lipase. Instructions on the packet state that biological washing powders should be used in warm water but not in very hot water. Explain why warm water should be used instead of very hot …
Enzymes in washing powders — Science Learning Hub
Proteases break down proteins, so are good for blood, egg, gravy, and other protein stains. Amylases break down starches, and lipases break down fats and grease. Washing powders usually only contain one type of enzyme, though some have two or all three. Experiments to test the functionality of enzymes
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Please login to view the content. 20-Biotech -Genetic engineering.pdf ; 20-Human influences on environment.pdf ; 20.1-Biological washing powders.pdf ; 20.2-Biological washing powders.pdf
IGCSE Biology (O610) Workbook Chapter 05 Enzymes - Science …
• Investigate and describe the use of biological washing powders that contain enzymes Extended: • Explain enzyme action with reference to the active site, enzyme-substrate complex, substrate and product • Explain the specificity of enzymes in terms of the complementary shape and fit of the active site with the substrate
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antibiotics in biological washing powders igcse ... Biotechnology | CIE IGCSE Biology Revision Notes. Many stains on clothes are organic molecules – oil from skin, protein from blood, fat and protein from food; Detergents that only contain soap can remove some of these stains when mixed with hot water, but it can take a lot of time and effort and very high temperatures …
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Biological washing powders contain protease and lipase to remove protein stains and fat /grease from clothes. The enzymes break down proteins or fats on the fabric, forming water-soluble substances that can be washed away. Example: Blood contain the red protein Haemoglobin (Hb). The Proteases in biological washing powder break Hb molecules into ...
IGCSE CIE Biology Revision Notes - IG Exams
CIE IGCSE Biology: Revision Notes CIE IGCSE Biology > Revision Notes Concise revision notes for the CIE IGCSE 0610/0970 Biology course 1. Characteristics & Classification of Living Organisms 2. Organisation of the Organism 3. Movement In & Out of Cells 4. Biological Molecules 5. Enzymes 6. Plant Nutrition 7. Human Nutrition 8. Transport in Plants […]
Biological washing powders as allergens | The BMJ
21/01/1995·Apart from the possibility of invisible dust occurring from powders and xeromists occurring from liquid preparations or powders in solution, the allergen will persist in garments, bedclothes, and carpets washed or cleaned with detergents containing the enzyme. The build up of allergen in the domestic environment will increase with continued use.
IGCSE Biology - Biotechnology & Genetic Engineering
biological washing powder contains enzymes that work at low wash temperatures and in alkaline conditions pectinase used to extract fruit juice by breaking down the pectin in the cell walls in fruit such as apples lactase breaks down lactose to produce lactose-free milk penicillium fungus cultured for the production of penicillin inside a fermenter.