Tag Archives: membranes

B2 Cells (Combined Science)

All of B2 Revision notes in downloadable word format and here are the key terms and definitions: Key terms B2

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:

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).






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 & specialized cells:


You only need to know about the first two sections (diffusion):

Ks4 movement in and out of cells from SUSAN MATHEW

Topic 1 Cell Biology

Here are some past essay questions: Topic 2 Cells essay qus

Here are video tutorials for many assessment statements in topic 1 – just click on the one you want. Thank you to Stephanie Castle (at UNIS, New York).

How about seeing some real cells in action? Here is a Trachelius ciliate feeding on a Campanella ciliate, and here is a Paramecium feeding. And how about ten craziest things cells do.

And here is a cool animation showing the dynamic world that is the inner life of a cell (the second version is narrated):

A great revision quiz from Mr Exham, covering topic 1:

IB Biology Revision Quiz – Core 1 Cell Biology from mrexham

1.3 Membrane Structure





The endomembrane system of the cell (click to enlarge)



1.3 Membrane Structure notes to complete (created by Ms Green).

Here Stephanie Castle explains 1.3 Drawing the Fluid Mosaic Model in a 2m video. Mr Andersen covers Cell Membranes in 11m and here is the history of membrane structure models in 11m.

1.4 Membrane Transport


1.4 Membrane Transport notes to complete (created by Ms Green).

A 13m 35s video lesson from Dan Rott:

Some assessment statements are covered in videos by Stephanie Castle.

An animated, narrated tutorial on how molecules move across the cell membrane (from Sinauer Associates) and Cell Transport from McGraw Hill.


A fantastic animated, narrated tutorials from McGraw Hill Education on how diffusion works


An animated, narrated tutorial on the three types of carrier proteins (from Sinauer Associates).

Or here are is a fantastic animated, narrated tutorial from McGraw Hill Education – how facilitated diffusion works.


An animated, narrated tutorial from McGraw Hill Education – how osmosis works.


The Na/K pump from McGraw Hill or here from RichochetScience.


An animated, narrated tutorial from McGraw Hill Education – Endocytosis & Exocytosis.

And here is an animated, narrated tutorial on vesicle budding &  fusing which also includes a quiz (from Sinauer Associates).

Here Paul Andersen gives you a brief introduction to The Cell Membrane.

Mr W’s Cell Membranes rap is good revision as is his Osmosis! rap.

In Crash Course Biology #5 – In Da Club – Membranes & Transport, Hank describes how cells regulate their contents and communicate with one another via mechanisms within the cell membrane.


Estimation of osmolarity in tissues by bathing samples in hypotonic and hypertonic solutions

Osmolarity – notes from BioNinja

Estimation of osmolarity in tissues, a 7m video from Stephanie Castle.