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Core Practical 8: Tensile Strength of Plant Fibres | Structure & Lignin | Edexcel IAL Biology
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Core Practical 9: Antimicrobial Properties of Plants | Aseptic Techniques | Edexcel IAL Biology
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chem-bio.info by Hosni on Instagram: "The Experiment That Keeps Coming Back in IAL Biology Unit 1 (Core Practical 3) Master Core Practical 3 (beetroot membrane permeability) for Edexcel IAL Biology Unit 1 and stop losing easy marks in the practical questions. In this video, we walk through the full beetroot experiment step by step: from cutting cylinders safely and controlling variables, to using water baths, timing correctly and judging when the colour change is actually significant. You’ll see
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🔴 How to prepare for the IAL Biology Unit 3 Practical Exam in 2026? Avoid these mistakes This video explains EXACTLY how to revise for IAL Biology Unit 3 (WBI13) — the Practical Skills paper 🧪📊 Many students think Unit 3 is “new content”… it’s NOT. It’s built on practicals from Unit 1 & Unit 2 — but tested in an exam-style way. In this lesson you’ll learn: 🔬 Which core practicals matter most 📈 How graphs and calculations are always tested 🧠 Why you should NOT revise all Unit 1 theory again
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This concept 🔴 appears in every IAL Biology exam & it will appear in 2026 In this video, we explain a **core concept that appears in every IAL Biology exam**: **how mutations affect the structure and function of proteins**. You will learn how changes in DNA base sequence can alter the **primary structure of a protein**, leading to changes in folding, bonding, and ultimately **protein function**. We apply this concept to key exam examples, including: * **CFTR protein** mutations and how they dis
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chem-bio.info by Hosni on Instagram: "Unlock the secrets of core practicals in IAL Biology (Edexcel) with this step-by-step explanation of biochemical tests. In this lesson, we go beyond the basics of the iodine test for starch, the Biuret test for proteins, and Benedict’s test for reducing sugars. You’ll learn how these color changes aren’t just “yes or no,” but can be measured quantitatively using a colorimeter—an essential skill for the Edexcel International A Level Biology course. This video
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