Tag Archives: osmosis

11.3 The Kidney & Osmoregulation

BioKnowledgy Presentation on 11.3 The kidney and osmoregulation (AHL) from Chris Paine

OSMOREGULATION

Mr Paul Andersen (from Bozeman High) describes Osmoregulation (including in fish which you don’t need to know) in a 8m 57s lesson.

Osmoregulator or Osmoconformer? Here are two videos about contractile vacuoles in Paramecium (they are osmoregulators): Paramecium vacuole (1m video) and contractile vacuole (a 27s explanation). If it goes wrong – Paramecium exploding!

THE KIDNEYS

A nice introduction to how the kidneys work (from TED-Ed):

A superb flash animation on the Kidneys from kscience.

An animated tutorial from McGraw Hill Education on basic Renal processes and here’s an animated, narrated tutorial on the mammalian kidney which also includes a quiz (from Sinauer Associates).

In Crash Course Biology #29 – The Excretory System: From Your Heart to the Toilet, Hank takes us on the fascinating journey through our excretory system to learn how our kidneys make pee.

1.4 Membrane Transport

BioKnowledgy 1.4 Membrane transport from Chris Paine (at Dulwich College Shangai) – taken from his fabulous blog BioKnowledgy.

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.

Click on ‘Cellular Transport’ to see an interactive animation from Wiley that covers diffusion, osmosis, passive transport & active transport. Or here for an animated, narrated tutorial on how molecules move across the cell membrane (from Sinauer Associates).

DIFFUSION

A short, simple animation demonstrating diffusion (from St Olaf) and here are two fantastic animated, narrated tutorials from McGraw Hill Education – how diffusion works & diffusion through cell membranes.

FACILITATED DIFFUSION

Short, simple animations demonstrating facilitated diffusion with a channel protein and with carrier proteins – three types: uniport, symport, & antiport  (from St Olaf).

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

A short, simple animation demonstrating osmosis (from St Olaf) or here are two fantastic animated, narrated tutorials from McGraw Hill Education – osmosis & how osmosis works.

ACTIVE TRANSPORT

A short, simple animation demonstrating Secondary Active Transport – the Na/K pump coupled with the glucose/Na symport (from St Olaf).

ENDOCYTOSIS & EXOCYTOSIS

A short, simple animation demonstrating phagocytosis (from St Olaf) or here is a fantastic animated, narrated tutorial from McGraw Hill Education – Endocytosis & Exocytosis – which includes a quiz.

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; Diffusion & Osmosis, various LabBench Activities from Pearson

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: