Contains 2 Big Powerpoints covering topics 2.1.2, 2.1.3 and 2.1.4 from the OCR Spec:-

Lesson breakdown below:

SESSION 1- Biological elements and water SESSION 2- Carbohydrates and 91¶¶Òõting for them
SESSION 3- PAG CARBOHYDRATESSESSION
Session 4- Lipids and Proteins
SESSION 5- Lipids and Proteins 91¶¶Òõts
SESSION 6- Nucleic Acid and structure of DNA
SESSION 7- DNA replication and Genetic code
SESSION 8- Transcription
SESSION 9 Protein Synthesis

And for enzymes

Enzymes and mechanisms of enzyme activity
Factors effecting enzyme activity
Enzymes Practical understanding
Enzyme Inhibition and co-factors