Lab Book
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1 USE A SEMI-QUANTITATIVE METHOD WITH BENEDICT’S REAGENT TO ESTIMATE THE CONCENTRATIONS OF REDUCING SUGARS AND WITH IODINE SOLUTION TO ESTIMATE THE CONCENTRATIONS OF STARCH, USING COLOUR STANDARDS 6
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2 INVESTIGATE THE VITAMIN C CONTENT OF FOOD AND DRINK 10
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3 INVESTIGATE MEMBRANE PROPERTIES INCLUDING THE EFFECT OF ALCOHOL AND
TEMPERATURE ON MEMBRANE PERMEABILITY 13
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4 INVESTIGATE THE EFFECT OF TEMPERATURE, pH, ENZYME CONCENTRATION AND
SUBSTRATE CONCENTRATION ON THE INITIAL RATE OF ENZYME-CATALYSED REACTIONS 18
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5 (i) USE A LIGHT MICROSCOPE TO MAKE OBSERVATIONS AND LABELLED DRAWINGS
OF SUITABLE ANIMAL CELLS; (ii) USE A GRATICULE WITH A MICROSCOPE TO MAKE MEASUREMENTS AND UNDERSTAND THE CONCEPT OF SCALE 27
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6 PREPARE AND STAIN A ROOT TIP SQUASH TO OBSERVE THE STAGES OF MITOSIS 31
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7 USE A LIGHT MICROSCOPE TO: MAKE OBSERVATIONS OF (i) TRANSVERSE SECTIONS OF ROOTS, STEMS, LEAVES; (ii) PLANT TISSUES; (iii) IDENTIFY SCLERENCHYMA FIBRES, PHLOEM, SIEVE TUBES, XYLEM VESSELS AND THEIR LOCATION 37
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8 DETERMINE THE TENSILE STRENGTH OF PLANT FIBRES 41
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9 INVESTIGATE THE ANTIMICROBIAL PROPERTIES OF PLANTS, INCLUDING ASEPTIC TECHNIQUES FOR THE SAFE HANDLING OF BACTERIA