Biology 5090/22 — May/June 2019
Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme
Topics Plant Nutrition · Organisms and Their Environment · Cell Structure and Organisation · Coordination and Control · Inheritance · Transport in Humans · +6 more
Food supplements are substances that are often added to a person's diet. These supplements may be in the form of a tablet.
The diagram shows the label from a food supplement.
This supplement may be taken by a person whose pancreas is not producing enough of some of the components shown on the label.
State the type of chemical that the supplement contains.
______
Each food group in the diet is the substrate for a specific component of the supplement.
Complete the table by writing the most appropriate word or words in each box.
| component of supplement | substrate | end product or products |
|---|---|---|
| amylase | ||
| protease | ||
| lipase |
Cellulase is a component of the supplement that is not usually found in the human body.
Use your knowledge of the structure of a plant cell to suggest the function of the cellulase component of the supplement.
The supplement is taken in the form of a tablet that is swallowed.
Each tablet is covered in a substance that breaks down only in alkaline conditions to release the components of the supplement.
Suggest why this covering is important if the supplement is to work effectively in the alimentary canal.
The rest of this paper
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- Q3Sexual Reproduction in Plants · Cell Division and Reproduction · Inheritance12M
- Q4Inheritance · Organisms and Their Environment8M
- Q5Organisms and Their Environment · Plant Nutrition9M
- Q6Transport in Humans10M
- Q7Coordination and Control10M
- Q8Human Gas Exchange · Transport in Humans · Plant Nutrition10M
- Q9Transport in Flowering Plants10M