Investigation of the effect of pH on enzyme activity (LC 2026) (Leaving Cert Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What substrate was used in the pH enzyme investigation?
What substrate was used in the pH enzyme investigation?
Hydrogen peroxide
Which enzyme is contained in celery?
Which enzyme is contained in celery?
Catalase
Which pH values were tested in this investigation?
Which pH values were tested in this investigation?
4, 7, 10, 13
What constant temperature was maintained during the experiment?
What constant temperature was maintained during the experiment?
30°C
What volume of celery was used in each test?
What volume of celery was used in each test?
10cm³
What volume of hydrogen peroxide was added?
What volume of hydrogen peroxide was added?
5cm³
How long were cylinders in the water bath before mixing?
How long were cylinders in the water bath before mixing?
2 minutes
What does foam volume measure in this investigation?
What does foam volume measure in this investigation?
Enzyme activity
What volume of foam was produced at pH 10?
What volume of foam was produced at pH 10?
13cm³
What volume of foam was produced at pH 4?
What volume of foam was produced at pH 4?
0cm³
What is the optimal pH for catalase activity?
What is the optimal pH for catalase activity?
pH 10
What should be plotted on the y-axis of the results graph?
What should be plotted on the y-axis of the results graph?
Volume of foam (cm³)