Enzymes & Metabolism (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which enzyme breaks down starch to maltose in this practical?
Which enzyme breaks down starch to maltose in this practical?
Amylase
What colour does iodine turn in the presence of starch?
What colour does iodine turn in the presence of starch?
Blue-black
What colour does iodine remain when starch is completely broken down?
What colour does iodine remain when starch is completely broken down?
Brown
What is the independent variable in this enzyme experiment?
What is the independent variable in this enzyme experiment?
pH (buffer solution)
How is the rate calculated in the starch-amylase experiment?
How is the rate calculated in the starch-amylase experiment?
1000/time
What is the general equation for calculating rate of reaction?
What is the general equation for calculating rate of reaction?
rate = change/time
What variable must be controlled in this pH experiment?
What variable must be controlled in this pH experiment?
Temperature
What equipment is used to warm the enzyme solution?
What equipment is used to warm the enzyme solution?
Water bath or electric heater
What product is formed when amylase breaks down starch?
What product is formed when amylase breaks down starch?
Maltose
Where is the iodine placed in this practical?
Where is the iodine placed in this practical?
In wells of a spotting tile