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1. www.physicsandmathstutor.com › igcse-cie › enzymesCIE IGCSE Biology Topic 5: Enzymes Revision - PMT - Physics ...

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   Summary notes, revision videos and past exam questions by topic for CAIE IGCSE Biology Topic 5 - Enzymes.

2. www.youtube.com › watchEnzymes - Catalysts - YouTube

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   This biology video tutorial provides a basic introduction into enzymes - most of which are protein based catalysts that speed up chemical reactions by loweri...

   • 影片時長: 17 分鐘
   • 觀看人次: 216.9K

   • 作者: The Organic Chemistry Tutor

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     16:33

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     Enzymes - Catalysts

     2019年10月22日

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     11:52

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     Enzymes

     2011年11月26日

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     5:47

     youtube.com

     Enzymes (Updated)

     2016年8月28日

     觀看次數：505.7萬

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4. www.savemyexams.com › igcse › biologyEnzymes | CIE IGCSE Biology Revision Notes 2023 - Save My Exams

   www.savemyexams.com › igcse › biology

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   Revision notes on 5.1.1 Enzymes for the CIE IGCSE Biology syllabus, written by the Biology experts at Save My Exams.

5. www.pearson.com › jason › energy-and-metabolismEnzymes - Online Tutor, Practice Problems & Exam Prep

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   Learn Enzymes with free step-by-step video explanations, exam prep materials and practice problems by experienced online tutors. Skip to main content General Biology

6. www.pearson.com › channels › gobIntro to Enzymes - Video Tutorials & Practice Problems

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   Learn Intro to Enzymes with free step-by-step video explanations and practice problems by experienced tutors.

7. 其他人也問了

   What is enzyme/substrate complex?

   • Enzyme/substrate complex - The temporary complex formed when the substrate binds to the active site of the enzyme. Extracellular enzyme - An enzyme that is secreted by cells and functions outside of cells, e.g. amylase. Extracellular reaction - A reaction that occurs outside of cells e.g. in the tissue fluid.

   Definitions - Topic 3 Enzymes - CAIE Biology A-level

   pmt.physicsandmathstutor.com/download/Biology/A-level/Notes/CIE/03-Enzymes/Definitions - Topic 3 CAIE Biology A-Level.pdf

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   Which molecule binds to the active site of an enzyme?

   • Competitive inhibitor - A molecule which binds to the active site of an enzyme and prevents the substrate from binding. Enzyme - A globular protein molecule that acts as a biological catalyst and increases the rate of biochemical reactions. Some enzymes work intracellularly and others work extracellularly.

   Definitions - Topic 3 Enzymes - CAIE Biology A-level

   pmt.physicsandmathstutor.com/download/Biology/A-level/Notes/CIE/03-Enzymes/Definitions - Topic 3 CAIE Biology A-Level.pdf

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   What is an intracellular enzyme?

   • Intracellular enzyme - An enzyme that acts within cells, e.g. catalase. Intracellular reaction - A reaction that occurs within cells. Lock and key hypothesis - A model of enzyme action that describes how the enzyme will only fit a substrate that has the correct complementary shape to the active site.

   Definitions - Topic 3 Enzymes - CAIE Biology A-level

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   What are immobilised enzymes?

   • Immobilised enzymes - Enzymes which are attached to an inert, insoluble material over which the substrate passes and the reaction takes place. Induced-fit hypothesis - A model of enzyme action that describes how enzymes undergo subtle conformational changes which exert a strain on bonds in the substrate.

   Definitions - Topic 3 Enzymes - CAIE Biology A-level

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8. pmt.physicsandmathstutor.com › download › BiologyDefinitions - Topic 3 Enzymes - CAIE Biology A-level - ...

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   Enzyme - A globular protein molecule that acts as a biological catalyst and increases the rate of biochemical reactions. Some enzymes work intracellularly and others work extracellularly. Enzyme/substrate complex - The temporary complex formed when the substrate binds to the active site of the enzyme.

9. pmt.physicsandmathstutor.com › download › BiologyNotes - Enzymes and Temperature - Edexcel Biology IGCSE - ...

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   Effect of temperature on enzyme activity Aim Investigate the effect of changes in temperature on amylase activity, measured by the rate of disappearance of substrate (starch). Amylase catalyses the reaction below: Starch → Maltose Equipment a test

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