Digestive Enzymes Explained - Complete KS3 Biology Lesson Pack
📦 Everything you need to teach digestive enzymes at KS3 — two complete resources, full answer keys, and no preparation required. This lesson pack covers the lock and key model, where each catalyst is made, and the effects of temperature and pH for students aged 11-14.
Digestive enzymes are biological catalysts that break large food molecules into small ones the body can absorb.
📝 The main worksheet contains 16 questions worth 100 marks across three progressive sections: multiple choice, true or false and a word-bank summary (30 marks); definitions, a completion table and written answers on the lock and key model and where each catalyst is made (40 marks); and extended answers on denaturing, biological washing powder and optimum conditions (30 marks). The extension pack provides four enrichment activities — a 12-mark vocabulary matching exercise, a 26-mark challenge quiz, a 20-mark pineapple and jelly case study, and a rubric-assessed Teach It Back task. Full answer keys are included for everything. Everything comes as a PDF and an editable Word file (DOCX).
Full lesson page with the video, quiz and free worksheet: https://inewittall.com/ks3-biology/digestive-enzymes/?utm_source=payhip&utm_medium=listing
Watch the full lesson on YouTube: https://youtu.be/z2yYPx7Sq94
💰 Buying this bundle saves £1 compared to purchasing both resources separately (£3 + £3 = £6 individually, £5 as a pack).
WHAT'S INCLUDED:
MAIN WORKSHEET:
- 16 questions, 100 marks total
- Section 1: Knowledge recall (30 marks) — five multiple choice questions, a ten-statement true or false table, a ten-gap word-bank summary
- Section 2: Application and understanding (40 marks) — key-term definitions, a completion table, written answers on the lock and key model, where each catalyst is made and starch digestion
- Section 3: Extension and analysis (30 marks) — three extended answers on denaturing, biological washing powder and optimum conditions
- Full answer key with detailed marking guidance
EXTENSION PACK:
- 4 activities: Vocabulary Matching (12 marks), Challenge Quiz (26 marks), Pineapple and Jelly Case Study (20 marks), Teach It Back (rubric-assessed)
- Full answer keys for all activities
TAGS: KS3 Biology, Enzymes, Digestive Enzymes, Lesson Pack, Bundle, Complete Resource, Worksheet, Extension Pack, Answers Included, Digestion, Revision, Homework, Year 7, Year 8
PRICE: £5
KEY STAGE: KS3
SUBJECT: Biology
FORMAT: PDF + DOCX (editable Word file)
