A Level Biology OCR A Practical Summaries (Paper 1)

A Level Biology OCR A Practical Summaries including:

• Methods
• Analysis of results / expected results (where relevant)
• Identification of independent and dependent variables
• Diagrams
• Explanation of limitations
• Relevant maths and graphs
• Common questions asked about the experiments (as seen in past paper questions and lab books)

**Practicals included (Paper 1): **

• Microscopy - all of the different types of stains and microscopes asked about
• Transpiration - use of a potometer
• Breathing - use of a spirometer
• Osmosis - potato cubes
• Biochemical tests
• Identifying amino acids - chromatography
• Effect of temperature on enzymes - catalase + H2O2
• Heart rate - including relevant statistical tests
• Identifying photosynthetic pigments - chromatography
• Photosynthesis - altering limiting factors etc
• Rate of aerobic respiration - using live maggots vs beads
• Anaerobic respiration - yeast + sugar solution + limewater

Note that not all practicals required by OCR are included in this pack.