A Level Biology Lesson 14:

Proteins: The Biuret Test.

Task 1. Check Where this Lesson fits into your Exam Specification!

Task 2. Watch the Revision Notes Lesson in Full.

00:00 Intro Screen / Learning Outcomes

00:18 Introduction

00:38 Peptide Bonds are identified when carrying out the Biuret Test...

00:55 The Biuret Reagent contains...

01:14 Long chain polypeptides have many peptide bonds...

01:37 The Biuret Test - Step 1.

02:00 The Biuret Test - Step 2.

02:13 The Biuret Test - Step 3.

02:46 The Biuret Test - Describing the steps in your exam.

03:28 The Biuret Test - Exam Tips - NOTE!

Task 3. 

Download, Print out & complete the accompanying Interactive Worksheet.

Proteins---The-Biuret-Test.png
The-biuret-test-for-proteins---A3-Poster

Check Your Spec!

 

★ AQA Specification Reference: - 3.1.4 Proteins: 3.1.4.1 General properties of proteins. The biuret test for proteins. Students could use, and interpret the results of, a biuret test for proteins.

 

★ CIE Specification Reference: - 2 Biological Molecules: Testing for biological molecules. a) carry out tests… the biuret test for proteins to identify the contents of solutions.

 

★ Edexcel (Biology A – Salters-Nuffield) Specification Reference: - Appendix 5c: Use of apparatus and Techniques. 6. use qualitative reagents to identify biological molecules.

 

★ Edexcel (Biology B) Specification Reference: - Appendix 5c: Use of apparatus and Techniques. 6. use qualitative reagents to identify biological molecules.

 

★ OCR (Biology A) Specification Reference: - 2.1.2 Biological molecules (q) how to carry out and interpret the results of the biuret test for proteins.

 

★ OCR (Biology B) Specification Reference: - Module 2: Cells, chemicals for life, transport and gas exchange. C) (ii) the methodology and interpretation of the results of the Biuret test.

 

★ WJEC Specification Reference: - Core Concepts 1. Chemical elements are joined together to form biological compounds - SPECIFIED PRACTICAL WORK - Food tests to include: …biuret test for protein.

 
560-3

560-1

Darwin T

560-2

560-1

560

1Fractured DNA

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