Enzymes & Metabolism (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards

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Enzymes & Metabolism
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Variable investigated in amylase practical

pH

Enzyme that breaks down starch in practical

Amylase

Product of starch breakdown by amylase

Maltose

Indicator used in amylase practical

Iodine

Iodine colour with starch present

Blue-black

Iodine colour when no starch remains

Brown

Equipment where iodine drops are placed

Spotting tile

Independent variable in pH practical

Buffer solution (pH)

Variable controlled in pH enzyme practical

Temperature

Rate equation when timing starch breakdown

1000/time1000/time

Rate equation for change over time

rate=change/timerate = change/time

Sign starch is completely broken down

Iodine remains brown (not blue-black)

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