UNIT 4 Chemistry of life
Essential Question(s)
- Living organisms control their composition by a complex web of chemical reactions
- Water is the medium of life
- Compounds of carbon, hydrogen and oxygen are used to supply and store energy.
- What is special about biological molecules?
- How does the number of covalent bonds formed by carbon, and the elements N, O and H influence the shapes and the structure of biological molecules.
- Hydrolysis and condensation reactions are opposites, can you explain why?
- Can you name and identify five biological molecules which are monomers and three which are macromolecules?
- How can we test for the presence of different biological molecules?
The content list below has additional material that will help you to master the content for this unit - use the activities, videos, animations and worksheets together with the presentations to reinforce your understanding.
Content |
Core Resources |
Support Material |
Basic chemistry review Workbook 38 |
. Biochemistry of life Part 1 - guide to complete Complete page 2 of the guide using: 2. Basics of biochemistry pdf Now complete pages 3 and 4 using: 3. Chemical bonds |
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Chemical structure of water Workbook 39 |
To see what you have retained from last lesson complete the following self test: 4. Chemical bonds self quiz Complete page 5 of guide using: 5. Structure of water Use your textbooks to help answer the homework sheet: 6. Water and Chemical elements |
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Properties of water and its significance to life Workbook 40 |
Lets first watch a demo from the ISS: 7. Water properties stations lab 8. (2.2) Water Fill in the details on this worksheet: 9. Water worksheet Now complete pages 6 and 7 in the guide. Complete this QUIZLET Homework - Carbon based compounds |
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Solubility |
Use the following presentation to complete section in guide about solubility and comparing with methane pages 8 and 9. 10. Solubility notes 11. Comparison with methane |
Video |
Carbon chemistry the basics |
Use the guide for part 2 - The macromolecules and complete as you go along. 13. Macromolecules Guide 14. Carbon chemistry |
Video |
Matching macromolecules |
Using the pack of macromolecules build up an understanding of basic organic molecules by observing structures and recognising patterns in their structures 15. Organic pattern matching |
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Organic molecules |
Weblink |
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Carbohydrates and lipids Workbook 41 to 45 |
Use this QUIZLET to learn some details about the structure of biological macromolecules before we start. Introduction to carbohydrates 18. Carbohydrates 19. Lipids 20. (2.3) Carbohydrates and Lipids ppt 21. (2.3) Carbs and lipids to complete |
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Dietary fats and BMI Workbook 46 |
In November 2013, the U.S. Food and Drug Administration (FDA) required the U.S. food industry to completely phase out artificial trans-fats. Why did they do this?
Use the BMI calculator below, then use the nomogram to work out your BMI. 22a. Nomogram |
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4 levels of protein structure Workbook 47-49 |
23. Drawing biological molecules practice worksheet 24. (2.3) Proteins 25. (2.4) Protein blanks Complete this activity to model the structures of proteins: 26. Protein structure worksheet 27. Building macromolecules revision sheet |
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Review for test |
Use the materials in the programme of study, together with the powerpoints attached below and the QUIZLET links on the right to prepare for this unit test. 2.1 Molecules to metabolism - Blank sheet to complete 2.2 Water 2.3 Lipids and carbohydrates 2.4 Proteins |
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