Pasteur's Germ Theory (1861)
Part of Germ Theory · GCSE GCSE History revision
This deep dive covers Pasteur's Germ Theory (1861) within Germ Theory for GCSE History. Revise Germ Theory in Medicine Through Time for GCSE History with 8 exam-style questions and 15 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 3 of 16 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 16
Practice
8 questions
Recall
15 flashcards
🧠 Pasteur's Germ Theory (1861)
| Problem | What Pasteur Did | Result |
|---|---|---|
| French wine industry: wine was going sour | Examined spoiled wine under microscope | Found microorganisms (germs) in bad wine |
| Old theory: "spontaneous generation" (germs appeared from nowhere) | Swan-neck flask experiment: air in but dust/germs out | Proved germs come from air, don't spontaneously appear |
| What causes decay? | Heating liquid killed germs (pasteurisation) | Proved germs cause decay — GERM THEORY |
Key point: Pasteur proved germs existed and caused decay. He suggested they might cause disease — but didn't prove it himself.
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Read this section alongside the surrounding pages in Germ Theory. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Germ Theory
In which year did Louis Pasteur publish his Germ Theory?
What did Pasteur's swan-neck flask experiment disprove?
Quick Recall Flashcards
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