Tag Archives: diffusion

Cell Transport

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 www.sciencepowerpoint.com

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

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

OSMOLARITY PRACTICAL:

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.

ACTIVE TRANSPORT:

A lesson from Mr Dare:

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. 

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Just click to enlarge (thank you LadyofHats).

 

 

 

 

B2.1 CELL STRUCTURE

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:

B2.2 MOVEMENT IN & OUT OF CELLS

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

Ks4 movement in and out of cells from SUSAN MATHEW

C1 The Particulate Nature of Matter (Combined Science)

What’s in a molecule? – the science of macaroni salad  from TED-Ed (3m 15s).

Some information on solids, liquids and gases (including a decent animation) can be found here. And this is a video on States of Matter from The Virtual School:

Science Bank 4 (Motion of Particles): Part 1 – Brownian motion (to 4m 45s); Part 2 – diffusion (to 9m 45s); Part 3 – changes of state (to 14m 15s):

IGCSE Chemistry: Topic 1 part 1 Particulate Nature of Matter  (6m 30s) & part 2 Diffusion (5m 35s), lessons by Sal Sciab.

Not on the syllabus, but interesting: the invisible motion of still objects:

7G Particle Model of Solids, Liquids & Gases

Solids, liquids and gases from Kesh Dewan

States of Matter, a 3m video from The Fuse School:

KS3 Bitesize higher level – The Particle Model – a 13m video covering States of Matter, Change of State, Gas Pressure & Diffusion:

A 20m 24s video on Solids, Liquids, Gases from Scientific Eye:

Science in Action – States of Matter a 19m 10s video. Scientific EyeChanging State (18m 30s); States of Matter (Curriculum Bites – Wan2tlkScience?), a 9m video.

Liquids that can act like solids – impossible. Or is it? Can you walk on water? (non-Newtonian fluid pool) and Brainiac Science Abuse – John Tickle walks on custard.

Superfluids: superfluid helium and Ben Miller experiments with superfluid helium.

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.

DIFFUSION

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

FACILITATED DIFFUSION

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.

OSMOSIS

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

ACTIVE TRANSPORT

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

ENDOCYTOSIS & EXOCYTOSIS

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.

PRESCRIBED PRACTICAL 2 – Osmolarity

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.

Solids, Liquids & Gases

Some information on solids, liquids and gases (including a decent animation) can be found here. And this is a video on States of Matter from The Virtual School:

Science Bank 4 (Motion of Particles): Part 1 – Brownian motion (to 4m 45s); Part 2 – Diffusion (to 9m 45s): Part 3 – Changes of State (to 14m 15s):

IGCSE Chemistry: Topic 1 part 1 Particulate Nature of Matter (6m 30s) & part 2 Diffusion (5m 35s), lessons by Sal Sciab.

Not on the syllabus, but interesting: the invisible motion of still objects:

IGCSE Bio Topic 3 – Movement into & out of 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:

And here he talks us through an osmosis practical.

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 www.sciencepowerpoint.com

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

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

ACTIVE TRANSPORT:

A lesson from Mr Dare: