Category Archives: 1. Cell Biology

1.1 Cell Structure

GCSE Bitesize – Cell Activity – covers animal & plant cells, movement in & out of cells & cell division (18m). Science in Focus – Cell Biology – a 19m video.

How about seeing some real cells in action? Here is a Trachelius ciliate feeding on a Campanella ciliate, and here is a Paramecium feeding

Science Bank 9 (Cells & Tissues): Part 1- Animal Cells (to 4m 25s); Part 2 – Plant Cells (to 9m 10s); you do not need Part 3.

A short video from The Virtual School about cells & specialised cells:

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. Powerpoints can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. 



Just click to enlarge (thank you LadyofHats).


1.2 Cell Division

1.2.1 Chromosomes


Hip, hip hooray for DNA! – the DNA song by Peter Weatherall (2m 47s).

Where do genes come from? A TED-Ed video (not on the syllabus):

17.1 & 17.2 revision notes in downloadable word format; to complete.

1.2.2 Mitosis and the Cell Cycle

Mitosis (in english). And here is Mitosis in american & mitosis – a 2m 45 s vid from Bitesize Top 20 Demos. Also here is What is Mitosis? (a 3m 45s lesson) & Mitosis music video by Peter Weatherall (2m 7s).

Here is Meiosis in american (and in more detail than you need).

Science Bank 9 (Cells & Tissues): Part 3 (from 9m 15s) also covers Mitosis & Meiosis. As does Cell Division (a 2m 3s vid from BBC iScience) & Cell Division (a 5m 23s vid from GCSE Bitesize).

1.2.3 Stem Cells

1.3 Transport in Cells

Ks4 movement in and out of cells from SUSAN MATHEW

Topic 3 revision notes in downloadable word format.

Mr Andersen (from Bozeman High) gives a brief description of osmosis:

A lesson on Osmosis from Mr Dare:

GCSE Bitesize – Diffusion & Osmosis – a 4m 24s video and Bitesize Top 20 Demos: Osmosis (3m 44s).

Mr W’s Osmosis! rap:

And here’s a long powerpoint:

Osmosis Gummy Bear Lesson PowerPoint, Cell Biology, Cell Transport from

Here is another presentation, covering the effect of osmosis on cells:

Effects of isotonic, hypotonic & hypertonic solutions on cells from j3di79


Here are 3 great videos: estimation of osmolarity from Stephanie Castle; Mr Andersen talks us through an osmosis practical; and osmosis in potato strips from Bio Lab.


A lesson from Mr Dare: