Core Practical: Investigating rate of enzymes (Edexcel GCSE Biology Combined Science): Flashcards
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Practise the cards
10 cards from this deck
Product when amylase breaks down starch
Product when amylase breaks down starch
Maltose
Indicator used to detect starch
Indicator used to detect starch
Iodine
Iodine colour in presence of starch
Iodine colour in presence of starch
Blue-black
Aim of the amylase practical
Aim of the amylase practical
Determine optimum pH for amylase activity
Temperature kept constant during practical
Temperature kept constant during practical
35°C
Volume of amylase solution used
Volume of amylase solution used
3cm³
Sampling interval for testing starch breakdown
Sampling interval for testing starch breakdown
Every 10 seconds
Rate calculation formula (measuring time only)
Rate calculation formula (measuring time only)
Optimum pH for amylase activity
Optimum pH for amylase activity
pH 7
Iodine colour when starch is absent
Iodine colour when starch is absent
Browny-orange