Investigation of the effect of temperature 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 is the optimum temperature for plant enzymes?
What is the optimum temperature for plant enzymes?
30°C
What does it mean when an enzyme is denatured?
What does it mean when an enzyme is denatured?
The active site has been destroyed
What happens to a denatured enzyme's ability to act on its substrate?
What happens to a denatured enzyme's ability to act on its substrate?
It can no longer act on the substrate
What substrate was used in this enzyme investigation?
What substrate was used in this enzyme investigation?
Hydrogen peroxide
Which material provided the enzyme catalase?
Which material provided the enzyme catalase?
Celery
What was the purpose of the pH buffer in this investigation?
What was the purpose of the pH buffer in this investigation?
To keep pH constant
What volume of hydrogen peroxide was added to the graduated cylinder?
What volume of hydrogen peroxide was added to the graduated cylinder?
5 cm³
What does the volume of foam produced measure in this experiment?
What does the volume of foam produced measure in this experiment?
Enzyme activity
What gas does the foam indicate is being produced?
What gas does the foam indicate is being produced?
Oxygen
What volume of foam was produced at 30°C?
What volume of foam was produced at 30°C?
15 cm³
What volume of foam was produced at 0°C?
What volume of foam was produced at 0°C?
0 cm³
What was the foam volume at 60°C compared to 30°C?
What was the foam volume at 60°C compared to 30°C?
Lower (5 cm³ vs 15 cm³)