Enzymes and Bubbles (VCE SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What two products does catalase produce when it breaks down hydrogen peroxide?
What two products does catalase produce when it breaks down hydrogen peroxide?
Water and oxygen gas
Why must hydrogen peroxide be broken down quickly in living cells?
Why must hydrogen peroxide be broken down quickly in living cells?
It can damage cells and molecules
What does bubble formation indicate when a sample is added to hydrogen peroxide?
What does bubble formation indicate when a sample is added to hydrogen peroxide?
Active catalase enzyme is present
What is the independent variable in the catalase investigation?
What is the independent variable in the catalase investigation?
Type of sample tested
What is the dependent variable in the catalase investigation?
What is the dependent variable in the catalase investigation?
Whether or not bubbles were produced
What safety equipment must be worn when handling hydrogen peroxide solution?
What safety equipment must be worn when handling hydrogen peroxide solution?
Lab coat, goggles, and gloves
Why do cooked samples show different results than raw samples in the catalase test?
Why do cooked samples show different results than raw samples in the catalase test?
Heat denatures (destroys) enzymes
At what temperature does potato catalase work best?
At what temperature does potato catalase work best?
35°C
Which type of materials typically contain active catalase enzyme?
Which type of materials typically contain active catalase enzyme?
Living materials
What is the purpose of the control test tube in this investigation?
What is the purpose of the control test tube in this investigation?
To have no sample added for comparison