Biology · GCSE · Cells & Organisation
Osmosis
gcse-biol-4-1-3-2Free1:14Heddy Score 3 of 7, below the standardPlays from youtube-nocookie.com. No YouTube cookies until you press play.
What you need to know
- Osmosis is the net movement of water across a partially permeable membrane
- Water moves from a dilute solution to a more concentrated one
- Cells can swell or shrink depending on the solution around them
In this clip
7:43–8:57Osmosisgcse-biol-4-1-3-2Also coversHow enzymes workgcse-biol-4-2-2-1aAlso coversEukaryotic and prokaryotic cellsgcse-biol-4-1-1-1aAlso coversMeiosisgcse-biol-4-6-1-2Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.3/7, Below the standard
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · passed. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
How the Heddy Score worksNot enough students yet
Our own students' answers. These are what move ★7 Proven.Why we picked it
A brisk US-made recap of a whole biology course; only the osmosis section is linked, the rest is a quick vocabulary refresher rather than UK-specification teaching.
Amoeba Sisters on YouTubechecked 2026-10-16