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- GCSE
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- WJEC
- WJEC1 - Animal and Plant Cells
- WJEC2 - Factors Affecting Enzyme Action
- WJEC3 - The Energy Content of Foods
- WJEC4 - Photosynthesis
- WJEC5 - Factors Affecting Transpiration
- WJEC6 - Distribution and Abundance of a Species
- WJEC7 - Variation in Organisms
- WJEC8 - Factors Affecting Reaction Time
- WJEC9 - Test Artificial Urine Samples for Protein and Glucose
- WJEC10 - The Effect of Antibiotics on Bacterial Growth
- A Level
- AQA
- RP1 - Enzyme Controlled Reactions
- RP2 - Root Tip Squash
- RP3 - Water Potential of Plant Tissue
- RP4 - Permeability of Cell-Surface Membranes
- RP5 - Heart Dissection
- RP6 - Aseptic Techniques
- RP7 - The Pigments Present in Leaves
- RP8 - Rate of Dehydrogenase Activity
- RP9 - Rate of Respiration
- RP10 - Animal Responses
- RP11 - Dilution Series of a Glucose Solution
- RP12 - Distribution of Species
- Edexel A
- CP1 - Effect of caffeine on heart rate in daphnia
- CP2 - Investigate the vitamin C content of food and drink
- CP3 - Investigate membrane structure
- CP4 - Effects of enzyme and substrate concentrations
- CP5 - Root tip squash to observe stages of mitosis
- CP6 - Looking at plant stems through a light microscope
- CP7 - Investigate plant mineral deficiencies
- CP8 - Determine the tensile strength of plant fibres
- CP9 - Investigate the antimicrobial properties of plants
- CP10 - A study on the ecology of a habitat
- CP11 - Investigate photosynthesis using isolated chloroplasts
- CP12 - Effect of temperature on an enzyme catalysed reaction
- CP13 - Effects of temperature on the development of organisms
- CP14 - Use gel electrophoresis to separate DNA fragments
- CP15 - Effect of different antibiotics on bacteria
- CP16 - Rate of respiration
- CP17 - Effects of exercise using spirometer data
- CP18 - Investigate habituation to a stimulus
- Edexel B
- CP1 - Factor affecting rate of an enzyme controlled reaction
- CP2 - Use a light microscope to draw cells
- CP3 - Root tip squash to show mitosis
- CP4 - Effect of sucrose conc. on pollen tube growth
- CP5 - Effect of temperature on beetroot membrane permeability
- CP6 - Determine water potential of a plant tissue
- CP7 - Dissect an insect to show structure of gas exchange system
- CP8 - Factors affecting water uptake using a potometer
- CP9 - Factors affecting rate of respiration
- CP10 - Effects of wavelength of light on photosynthesis
- CP11 - Presence of chloroplast pigments using chromatography
- CP12 - Rate of growth of bacteria in liquid culture
- CP13 - Isolate bacteria using streak plating
- CP14 - Effect of gibberellin on production of amylase
- CP15 - Sampling methods; estimating a population size
- CP16A - Effect of antibiotic factor on distribution of species
- CP16B - Effect of antibiotic factor on morphology of species
- OCR
- 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
- 4.1 - Rate of Reactions - Effect of Substrate Conc.
- 4.2 - Rate of Reactions - Effect of Enzyme Conc.
- 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
- 6.1 - Chromatography - Identify Amino Acids
- 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
- 8.1 - Cell Transport - Water Potential of a Potato
- 8.2 - Cell Transport - Osmosis in an Artificial Cell
- 8.3 - Cell Transport - Rate of Diffusion Through a Membrane
- 9.1 - Qualitative Testing - Proteins
- 9.2 - Qualitative Testing - Lipids
- 9.3 - Qualitative Testing - Glucose
- 10.1 - ICT - DNA Structure Using RasMol
- 10.2 - ICT - Turbidity Change in Microbial Growth in Sugars
- 10.3 - ICT - pH Change During Yoghurt Production
- 11.1 - Responses - Effect of Exercise on Pulse Rate
- 11.2 - Responses - Daphnia Heart Rate Response
- 11.3 - Responses - Phototropism
- 11.4 - Responses - Effect of Plant Hormones on Growth
- 12.1 - Research Skills - Respiration Rate of Saccharomyces
- 12.2 - Research Skills - Genetic Crosses in Fruit Flies
- 12.3 - Research Skills - Rate of Oxygen Production in Pondweed
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OCR PAG 10.2: ICT - Turbidity Change in Microbial Growth in Sugars
Abstract:
Turbidity change in microbial growth in different sugars.
Hints & Tips:
- Follow guidance from CLEAPSS regarding fermenting microbial cultures.
- Even though bacteria has not been used it is best to autoclave any used items after the practical, because of the chance of airborne pathogens getting into the yeast cultures over time.
- You can also use fresh baker yeast.
- Sugars should be made up to 20% in distilled water.
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