Core Practical: Investigating rate of enzymes (Edexcel GCSE Biology): Flashcards
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13 cards from this deck
Rate equation when measuring change over time
Rate equation when measuring change over time
Enzyme used in starch breakdown practical
Enzyme used in starch breakdown practical
Amylase
Product when amylase breaks down starch
Product when amylase breaks down starch
Maltose
Indicator used to detect starch
Indicator used to detect starch
Iodine solution
Colour of iodine with starch present
Colour of iodine with starch present
Blue-black
Colour of iodine when starch absent
Colour of iodine when starch absent
Browny-orange
Temperature maintained in water bath
Temperature maintained in water bath
35°C
Volume of amylase solution used
Volume of amylase solution used
3 cm³
Volume of buffer solution added
Volume of buffer solution added
1 cm³
Volume of starch solution added
Volume of starch solution added
3 cm³
Time interval for continuous sampling
Time interval for continuous sampling
Every 10 seconds
Rate formula for time-based experiments
Rate formula for time-based experiments
Optimum pH for amylase activity
Optimum pH for amylase activity
pH 7