biological washing powders enzymes biology igcse edexcel past

Pearson Centre Number Candidate Number Edexcel GCSE …- biological washing powders enzymes biology igcse edexcel past ,Edexcel GCSE. 2 *P43417A0220* Answer ALL questions ... Enzyme technology 6 The diagram shows how the human insulin gene can be used to genetically modify ... Washing powders can be biological or non-biological. Describe how biological washing powders can make clothes cleaner than non-Biology B3 Edexcel Extension Science Test Flashcards ...Explain why biological washing powders contain enzymes Enzymes break down stubborn stains like e.g amylases can remove jam and chocolate and …



Cambridge IGCSE

Cambridge IGCSE BIOLOGY 0610/01 Paper 1 Multiple Choice (Core) For examination from 2023 ... enzyme C substrate enzyme D active site product substrate 11 The apparatus shown was used in an experiment. ... Dusing biological washing powders . Created Date:

Cambridge IGCSE Biology (0610) Past paper questions and ...

v1 4Y11 Cambridge IGCSE Biology – past paper questions and answers. ... the use of biological washing powders to remove protein stains; (iii) fat digestion in the alimentary canal. [9] ... protease / named protein enzyme, for example pepsin, trypsin . breaks down / …

#24 Use of enzyme in biological washing powders | Biology ...

Dec 17, 2012·#24 Use of enzyme in biological washing powders Biological washing powders contain protease and lipase to remove protein stains and …

IGCSE Biology Revision Notes - SlideShare

Apr 29, 2015·IGCSE Biology Revision Notes. 1. IGCSE Biology Notes Refined by KmQ Unit 1 : Characteristics of living things www.studyguide.pk. 2. Biology is the study of living organisms. For something to be alive it needs to perform all seven functions of living things.MRS GREN Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition.

EDEXCEL INTERNATIONAL GCSE (9–1) SCIENCE DOUBLE …

EDEXCEL INTERNATIONAL GCSE (9–1) SCIENCE DOUBLE AWARD Student Book Brian Arnold, Phil Bradfield, Jim Clark, Penny Johnson, Steve Owen, Steve Potter, ... Complete the sentences about the properties of enzymes using the words in the box. ... Biological washing powders often contain protease enzymes.

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Biology Revision. For each of the exam boards below, there are revision notes, factsheets, questions from past exam papers separated by topic and other worksheets.

Edexcel IGCSE Biology Revision Notes - IGCSE STUDY BANK

Edexcel IGCSE Revision notes Written by Tim Filtness 9 Enzymes: - Are proteins - Are biological catalysts (speed up chemical reactions) - Are specific to one particular Substrate - Are affected by temperature and pH - Are not used up in the reaction they catalyze 1. Initially, raising the tem perature increases the rate of reaction. 2.

EDEXCEL INTERNATIONAL GCSE (9–1) SCIENCE DOUBLE …

EDEXCEL INTERNATIONAL GCSE (9–1) SCIENCE DOUBLE AWARD Student Book Brian Arnold, Phil Bradfield, Jim Clark, Penny Johnson, Steve Owen, Steve Potter, ... Complete the sentences about the properties of enzymes using the words in the box. ... Biological washing powders often contain protease enzymes.

Factors affecting enzyme activity - Enzymes and digestion ...

Some enzymes (e.g. in biological washing powders) are thermostable, meaning they can work at a wide range of temperatures. This allows biological washing powder to be used at low temperatures that ...

Enzymes and reactions - Biology Notes for IGCSE 2014

Enzyme molecules are proteins. Enzymes and reactions. Most enzyme names end in –ase, e.g. lipase, protease. Temperature, pH and enzymes. The activity of enzymes is affected by temperature and pH. Effect of temperature on enzymes. The optimum (best) temperature for enzyme-controlled reactions is 370C (body temperature).

Enzymes in washing powders - Science Learning Hub

Because stains are made of different types of molecules, a range of enzymes are needed to break them down. 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.

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Biology Past Papers. We have worked hard to compile every Edexcel IGCSE Biology past paper by topic and exam board! So if you’re revising Organisms for IGCSE Biology, you can find all of the Organisms questions that have been ever asked by Edexcel IGCSE in one single document - useful, no? 1. The Nature and Variety of Living Organisms (Paper ...

Cambridge International Examinations ... - Past Papers

(b) Fig. 7.1 shows part of a label taken from a packet of ‘5 Star Bio’ washing powder. AR BIO Biological Washing Powder Contains enzymes Wash at 30 °C Removes food stains Do not wash above 60 °C Only small quantities needed Fig. 7.1 Use the information shown in Fig. 7.1 to: (i) explain how this washing powder removes food stains

cie-igcse-biology-0610-znotes Pages 1-37 - Flip PDF ...

Mar 06, 2020·Check Pages 1-37 of cie-igcse-biology-0610-znotes in the flip PDF version. cie-igcse-biology-0610-znotes was published by kanthinee.gopal on 2020-03-06. ... Place the leaf in sunlight for 4-6 hours Biological washing powders: enzymes are added to Remove the stencil and test for starch washing powders to help remove stains for example: +ve ...

Enzymes - Biology Notes for IGCSE 2014

Biology Notes for IGCSE 2014. 1. Enzymes and reactions. 2. Enzymes - 'Lock and key' model. 3. Role of enzymes in germinating seeds. 4. Use of enzyme in biological washing powders.

GCSE Biology Revision notes 2020/ - S-cool

Protease and lipase enzymes are used in biological washing powders to remove those stubborn stains. Enzymes are also used in making foods and drinks. The enzyme pectinase helps to break down the cells in fruit to release more of their juice. All copyright and publishing rights are owned by S-cool. First created in 2000 and updated in 2013, 2015 ...

GCSE Biology (9-1) Revision | Worksheets | Past Papers ...

Free GCSE Biology revision materials. Grade 9-1 GCSE Biology worksheets, past papers and practice papers for Edexcel, AQA and OCR.

Summary Table of the Digestive Enzymes - Pass My Exams

Enzymes and Digestion. As we know enzymes are important molecules, they are particularly important in digestion as they help break down large, insoluble food molecules into small, soluble molecules which can be easily absorbed. Enzymes work best at their optimum pH. So for example if the stomach does not produce enough HCl, the enzyme, pepsin ...

Biology-igcse.weebly-24 Use of enzyme in biological ...

Biology-igcse.weebly-21 Enzymes and reactions; Biology-igcse.weebly-22 Enzymes - Lock and key model; Biology-igcse.weebly-23 Role of enzymes in germinating seeds; Biology-igcse.weebly-25 Use of enzymes in the food industry; Biology-igcse.weebly-26 Use of microorganisms and fermenter to manufacture enzymes

Use in biological washing powders - Biology Notes for ...

Use in biological washing powders - Biology Notes for IGCSE 2014 #24 Use of enzyme in biological washing powders Biological washing powders contain protease and lipase to remove protein stains and fat /grease from clothes. The …

Biology - Unit 1 - Chapter 2 - Enzymes and the Digestive ...

NBPT is an enzyme inhibitor which affects the action of the urease produced by soil bacteria. The graph shows the results of an experiment in which a standard amount of urease and of the enzyme inhibitor NBPT were added to different concentrations of urea solution. ... Biological washing powders often contain a number of different enzymes. This ...

Cambridge IGCSE Biology (0610) Past paper questions and ...

v1 4Y11 Cambridge IGCSE Biology – past paper questions and answers. ... the use of biological washing powders to remove protein stains; (iii) fat digestion in the alimentary canal. [9] ... protease / named protein enzyme, for example pepsin, trypsin . breaks down / …

Edexcel IGCSE 2009 - Pearson

The Edexcel International GCSE in Biology is designed for use in schools and colleges. It is part of the International GCSE suite of science qualifications offered by Edexcel. The course ... enzymes in biological washing powders, malnutrition, obesity, the effects of alcohol,

IGCSE EDEXCEL Biology revision – IGCSE EDEXCEL REVISION

Enzymes are used in biological washing powders • Proteases break down the coloured, insoluble proteins that cause stains to smaller, colourless soluble …