OxfordAQA International GCSE Biology
OxfordAQA International GCSE Biology Digestion and Enzymes Exam Questions
Free OxfordAQA International GCSE Biology exam questions on Digestion and Enzymes, with mark schemes. Covers the digestive system, digestive enzymes, bile and food tests.
Digestion and Enzymes exam questions
These packs of real past exam questions cover the whole of 3.1 Organisation, including Digestion and Enzymes. Work through every question on this sub-topic, then mark your answers against the mark scheme.
StemUp mark scheme flashcards
GCSE and IGCSE Biology Flashcards
Every answer is written in mark scheme wording, so you learn exactly what examiners give marks for. Pick your exam board, then test yourself with the questions on this page.
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About OxfordAQA International GCSE Biology Digestion and Enzymes
This sub-topic covers digestion.
What you need to know
- Enzymes Carbohydrases, proteases and lipases.
- Bile Emulsifies fats and neutralises acid.
- Food tests Benedict's, iodine and biuret.
Common mistakes in Digestion and Enzymes
- Calling bile an enzyme.
- Forgetting optimum conditions.
Try two Digestion and Enzymes exam-style questions
1. Name the enzyme that digests protein. (1 mark)
Show the mark scheme answer
Protease.
2. Explain why bile helps fat digestion. (1 mark)
Show the mark scheme answer
It emulsifies fats, increasing surface area for lipase.
Digestion and Enzymes FAQs
What does this cover?
Digestive organs, enzymes and food tests.
Which practical links here?
Effect of pH on amylase.
Revise this topic with flashcards: GCSE and IGCSE Biology Flashcards, with mark scheme answers for Anki and Quizlet.
