Mark analysing data 1 bcemb0050000009 the graph below

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Mark Analysing data 1 |!|BCEMB0050000009|!| The graph below shows the enzyme activity of two different enzymes P and Q over a range of pH values. © 2019 Aristo Educational Press Ltd. Key : 20 o 30 o Time Amount of products C C 7
HKDSE BIOLOGY: Connecting Concepts Chapter 5 Question bank Multiple-choice questions Which of the following is a correct interpretation of the graph? Enzyme activity pH 0 2 4 6 8 10 12 14 enzyme P enzyme Q
##C## Skill assessed Mark Analysing data 1 |!|BCEMA0050000010|!| SI Directions : Questions (a) to (c) refer to the following investigation. Set-up 1 5 g of freshly ground liver was added to a test tube with 5 cm 3 of hydrogen peroxide solution. A gas was formed. The gas re-lit a glowing splint. Set-up 2 5 g of ground liver was boiled. When the boiled ground liver was added to a test tube with 5 cm 3 of hydrogen peroxide solution, no gas was formed. Set-up 3 5 g of ground liver was mixed with acid and then added to hydrogen peroxide solution. Similar results were obtained as in set-up 2. Set-up 4 5 cm 3 of distilled water was added to a test tube with 5 cm 3 of hydrogen peroxide solution. No gas was formed. © 2019 Aristo Educational Press Ltd. 8
HKDSE BIOLOGY: Connecting Concepts Chapter 5 Question bank Multiple-choice questions (a) According to the design of the investigation, which of the following is being tested?
(b) Which of the following test tubes was the control for the experiment?
(c) Which set-up(s) showed that the reaction was controlled by an enzyme? A. set-up 1 only B. set-ups 1 and 2 only C. set-ups 2, 3 and 4 only D. set-ups 1, 2 , 3 and 4 ##(a) C, (b) B, (c) B## Skills assessed Marks (a) Practical skills 1 (b) Practical skills 1 (c) Practical skills 1
|!|BCEMB0050000011|!| Given a solution containing starch, amylase and lipase, which of the following tests will give a negative result to this solution?
© 2019 Aristo Educational Press Ltd. 9
HKDSE BIOLOGY: Connecting Concepts Chapter 5 Question bank Multiple-choice questions ##D## Skill assessed Mark Applying concepts 1 |!|BCEMC0050000012|!|

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