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- CP16B - Effect of antibiotic factor on morphology of species
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- 1.1 - Microscopy - Using a Light Microscope to Study Mitosis
- 1.2 - Microscopy - Examination & Drawing of Blood Cells
- 1.3 - Microscopy - Using a Light Microscope to Examine Lung Tissue
- 2.1 - Dissection - Mammalian Heart
- 2.2 - Dissection - Stem
- 2.3 - Dissection - Muscle Fibres from a Chicken Wing
- 3.1 - Sampling techniques - Species Diversity
- 3.2 - Sampling techniques - Distribution of Plants
- 3.3 - Sampling Techniques - Species and Biotic/Abiotic Factor
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- 4.3 - Rate of Reactions - Effect of Temperature
- 5.1 - Colorimeter - Effect of Temperature on Membrane Permeability
- 5.2 - Colorimeter - Determining Glucose Concs.
- 5.3 - Potometer - Rate of Transportation
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- 6.2 - Electrophoresis - DNA Fragments
- 6.3 - Chromatography - TLC to separate photosynthesis pigments
- 7.1 - Microbiology - Effect of Antibiotics on Bacterial Growth
- 7.2 - Microbiology - Dilution Plating
- 7.3 - Microbiology - Transformation of Bacteria
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- 8.3 - Cell Transport - Rate of Diffusion Through a Membrane
- 9.1 - Qualitative Testing - Proteins
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- 10.1 - ICT - DNA Structure Using RasMol
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- 12.2 - Research Skills - Genetic Crosses in Fruit Flies
- 12.3 - Research Skills - Rate of Oxygen Production in Pondweed
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GBP - British Pound
AQA RP6: Photosynthesis
Abstract:
Investigate the effect of light intensity on the rate of photosynthesis using an aquatic organism such as pondweed.
Alternative 1: Investigating the effect of light wavelength on photosynthesis in pondweed.
Alternative 2: Investigating the effect of carbon dioxide concentration on photosynthesis in pondweed
Hints & Tips:
- Cabomba caroliniana was recommended as a species for this experiment but this is no longer available in the UK, due to the invasive plant directive. Other alternatives are Elodea/ Egeria Densa, Egeria Nagas, or Cabomba Aquatica (Yellow Cabomba).
- Cut the stem under the level of the liquid at an angle, this is important as it stops airlock from forming.
- Use a lamp with at least 1000 lumens. LED lamps are best as they do not produce heat and therefore do not require a heat shield.
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