B4 Enzymes: workbook questions
Eight written questions with model answers: write your answer, check it, and tick the marks you earned. Vietnamese help for every question.
These are the kind of written questions you meet in the IGCSE Co-ordinated Sciences workbook and exam. Each question shows how many marks it is worth: one mark for each point in the model answer.
Write your answer in the box first. Then press “Show model answer” and tick each point that is in your answer. The score at the top adds up your marks.
How to use it
- Answer question 3 without looking at the video notes. How many of the three points did you include?
- Answer question 8 (the amylase and pH practical) in your own words, then compare the steps with the model answer.
- Press “Tiếng Việt” to hide or show the Vietnamese help.