Cambridge IGCSE COMBINED SCIENCE 0653/42 Paper 4 T
Cambridge IGCSE COMBINED SCIENCE 0653/42 Paper 4 T
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Cambridge IGCSE COMBINED SCIENCE 0653/42 Paper 4
Theory (Extended) February/March 2024 Question paper
, Cambridge IGCSE™
* 0 5 2 9 1 5 6 8 7 2 *
COMBINED SCIENCE 0653/42
Paper 4 Theory (Extended) February/March 2024
1 hour 15 minutes
You must answer on the question paper.
No additional materials are needed.
INSTRUCTIONS
● Answer all questions.
● Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs.
● Write your name, centre number and candidate number in the boxes at the top of the page.
● Write your answer to each question in the space provided.
● Do not use an erasable pen or correction fluid.
● Do not write on any bar codes.
● You may use a calculator.
● You should show all your working and use appropriate units.
INFORMATION
● The total mark for this paper is 80.
● The number of marks for each question or part question is shown in brackets [ ].
● The Periodic Table is printed in the question paper.
This document has 20 pages. Any blank pages are indicated.
(b) Mechanical digestion takes place in the alimentary canal.
Complete the definition of mechanical digestion.
Mechanical digestion is the breakdown of food into smaller ................................... without
chemical change to the food ................................. .
[2]
(c) Enzymes in the alimentary canal speed up chemical digestion.
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