1. Introduction to Biological Molecules
Lesson 1

2. Unit 2 [F212] Module 1 Biological Molecules (17 lessons) Carbohydrates
Proteins
Lipids
Water
Nucleic Acids
Enzymes

3. Success Criteria
State the functions of biological molecules in organisms
Define metabolism
Name the monomers and polymers of carbohydrates, proteins and nucleic acids
Describe the general features of condensation and hydrolysis reactions

4. Starter Match molecules to their functions
SC: State the functions of biological molecules in organisms
Starter
Match molecules to their functions

5. ANswers Carbohydrates Energy storage and supply Proteins
Structure, transport, enzymes & antibodies
Lipids
Membranes, energy supply & insulation
Vitamins & Minerals
Form parts of larger molecules
Nucleic acids
Information molecules
Water
Support, takes part in reactions & transport
SC: State the functions of biological molecules in organisms

6. Introduction to biological molecules: Video Clip
Watch the video and answer the questions on the worksheet
NlK0
SC: State the functions of biological molecules in organisms

7. SC: Define metabolism
Think, Pair, Share
Define metabolism

8. Key Definition Metabolism
SC: Define metabolism
Key Definition
Metabolism
Sum total of all biochemical reactions taking place in the cells of an organism

9. Key Questions What is a monomer? What is a polymer?
SC: Name the monomers and polymers of carbohydrates, proteins and nucleic acids
Key Questions
What is a monomer?
What is a polymer?

10. SC: Name the monomers and polymers of carbohydrates, proteins and nucleic acids
Group Task
Complete the table below, using your own knowledge and the information from the video
Monomer
Polymer
Carbohydrate
Protein
DNA

11. SC: Name the monomers and polymers of carbohydrates, proteins and nucleic acids
Group Task: ANswers
Monomer
Polymer
Carbohydrate
Monosaccharide
Polysaccharide
Protein
Amino acid
Polypeptide
DNA
Nucleotide
DNA and RNA

12. Reactions All biological molecules have the same reactions
SC: Describe the general features of condensation and hydrolysis reactions
Reactions
All biological molecules have the same reactions
Condensation
Hydrolysis

13. Condensation Condensation Reaction (to put them together)
SC: Describe the general features of condensation and hydrolysis reactions
Condensation
Condensation Reaction (to put them together)
Forms a covalent bond between the two molecules
A water molecule is produced

14. Hydrolysis Hydrolysis Reaction (to split them apart) Breaks the bond
SC: Describe the general features of condensation and hydrolysis reactions
Hydrolysis
Hydrolysis Reaction (to split them apart)
Breaks the bond
Uses up a water molecule

15. SC: Describe the general features of condensation and hydrolysis reactions
TASK in Pairs
Model hydrolysis and condensation using the molymods, make sure you get the teacher to check your model before you move onto the next one

16. SC: Describe the general features of condensation and hydrolysis reactions
QUICK Quiz
What are the two types of reactions in biological molecules?
Condensation and Hydrolysis
What are the reactants of a hydrolysis reaction?
Polymer and water
What are the products of a hydrolysis reaction?
Monomers
What are the reactants of a condensation reaction?
What are the products of a condensation reaction?

17. Success Criteria
State the functions of biological molecules in organisms
Define metabolism
Name the monomers and polymers of carbohydrates, proteins and nucleic acids
Describe the general features of condensation and hydrolysis reactions

18. Plenary
In groups of 4, write a summary of the four SC, each student with a different coloured pen
Each student writes the summary for the 1st one and passes it on
Next student can correct previous student and write next SC
SC: State the functions of biological molecules in organisms
SC: Define metabolism
SC: Name the monomers and polymers of carbohydrates, proteins and nucleic acids
SC: Describe the general features of condensation and hydrolysis reactions

19. Homework
Create a glossary of key terms from this lesson