Tag Archives: Cells

1.2 Cell Division

1.2.1 Chromosomes

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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

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

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

7A Cells

7 a cells from Adam Leszczuk

An 18m 50s video on Cells from Scientific Eye:

http://youtu.be/T0BdCtBU3DkWant2TlkScience? – Cells an 8m 36s video; Science in Action – Cells (19m); The Human Body – Cells (8m); BBC Curriculum Bites: Cells (5m 39s); BBC Curriculum Bites: Cell, Tissue, Organ (41s).

KS3 Bitesize foundation level – Life Processes & Cell Activity – a video covering the seven Life Processes, Animal & Plant Cells and Specialised Cells.

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

MICROSCOPES

Parts of a microscope from Rachael Hubbard

The proper use of a microscope:

What can you see with a microscope? Life in a drop of water – a 23m video – the amazing world seen through a microscope – a 3m video.

Here’s a SciShow episode on the history of microscopes – Microscope: the tube that changed the world (4m 40s).

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Just click to enlarge (thank you LadyofHats).

1.1 Introduction to Cells

How about a video lesson from Dan Rott or an animated, narrated tutorial on the scientific method and where life comes from (from Sinauer Associates)?

CELL THEORY

The wacky history of cell theory: a 6m TED-Ed video form Lauren Royal-Woods. Here are a couple of videos on unicellular life: Protists (4m 11s) and Protista from Mr Andersen (5m).

RELATIVE SIZES

Check out this great interactive Cell Size & Scale graphic. What is the biggest single-celled organism? – a 4m TED-Ed lesson from Murry Gans.

Surface Area to Volume RATIO

The importance of surface area to volume ratio, a 2m 44s video from Stephanie Castle.

EMERGENT PROPERTIES

Thank you Mr Andersen. How about Stephanie Castle’s 1m video Emergent Properties or Alex Lee’s 11m video Cell Theory – emergent properties – differentiation.

STEM CELLS

What are stem cells?, from TED-Ed.

The therapeutic use of stem cells (2m vid from Stephanie Castle); Stem Cells (4m from SciShow); the ethics of stem cells: South Park. Stem cell treatment cures blindness (3m vid).

Immortal cells? Henrietta may have passed away, but her cells live on. Stem Cells: activities and information from Learn.Genetics.

CELL DRAWING

This presentation is revision by drawing from Mr Taylor of iBiology. It covers the old syllabus but is very good:

Draw The Core from Stephen Taylor

http://bit.ly/measureSIuncertainty – another excellent Ms Green presentation on Measuring, SI units & Uncertainty.

PRESCRIBED PRACTICAL 1 – Microscope drawing

Use of a light microscope to investigate the structure and ultra-structure of cells and tissues, with drawing of cells and calculation of the magnification of drawings and the actual size of structures shown in drawings or micrographs.

Magnification – notes from BioNinja

Calculating the magnification and the actual size of structures, a 4m video from Stephanie Castle.

1.2 Ultrastructure of Cells

IB Biology 1.2 Slides: Ultrastructure of Cells from Jacob Cedarbaum
1.2 Ultrastructure of Cells notes to complete (created by Mrs Green).

Ultrastructure of cells in 9m from IB Screwed:

Drawing Prokaryotic Cell Ultrastructure from IB Screwed; drawing eukaryotice cell ultrastucture from Stephanie Castle.

Biology: Cell Structure an excellent 7m video that covers prokaryotes and eukaryotic organelles.

PROKARYOTES:

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The 100 greatest scientific discoveries: the discovery of Hydrothermal Vents – a 5m video – and a new form of life, the Archaea – a 3m video. In Crash Course Biology #35, Hank Green describes Old & Odd: Archaea, Bacteria & Protists in a 12m video.

EUKARYOTES:

Prokaryotic vs Eukaryotic Cells – a 3m 44s video from RichocetScience.

Here’s an animated, narrated tutorial on eukaryotic organelles (from Sinauer Associates).

Here is a short, animated & narrated tutorial from McGraw Hill Education – Lysosomes.

In Crash Course Biology #4 – Eukaryopolis – the city of animal cells, Hank tells us about the city of Eukaryopolis – the animal cell that is responsible for all the cool things that happen in our bodies.
Mr W’s The Cell Song is good for revising the organelles.

Here Paul Andersen takes you on A Tour of the Cell and the lower half of Mr. Andersen’s head explains Why Cells Are Small.

Documentary – Our Secret Universe The Hidden Life of the Cell – a 49m video. And here are the Organelles of a human cell in 4m 38s.

THE ENDO-MEMBRANE SYSTEM

Intro video in 1 minute: The Endomembrane System; Richochet Science gives us The Endomembrane System in 3m; 3m27s Protein Trafficking.

1.5 The Origin of Cells

1.5 The Origin of Cells notes to complete (created by Ms Green).

A 10m video lesson from Dan Rott:

Can Science explain the origin of life? – a fantastic 7m video from Stated Clearly:

Stated Clearly have also made this 9m video What is Chemical Evolution? , in 7m, What is the RNA World Hypothesis? and in 8m, What caused life’s evolutionary transitions?

This is a fantastic 15m video from Martin Hanczyc at TED: The line between life and not life

THE FIRST CELLS

The powerpoint covers all that we need to know, the following is more detailed than we need but it’s interesting – this is how life began! Paul Andersen describes how Abiogenesis could have occurred on Earth and discusses Scientific Evidence of The Origin of Life on our planet.

What was the Miller-Urey experiment? – a 7m 30s video from Stated Clearly and an animation about this famous experiment can be found here.

RNA – The Discovery of Ribozymes: Dr. Thomas Cech discusses RNA, its characteristics, and its ability to act as an enzyme (9m 30s).

ENDOSYMBIOSIS

A fantastic animated, narrated tutorial from McGraw Hill Education – Endosymbiosis – or here’s one from Sinauer Associates that includes an activity – the Endosymbiont theory. And here are short video clips discussing the endosymbiotic theory (4m 17s): How did the evolution of complex life on Earth begin? – The Gene Code – or How we think complex cells evolved – a 6m TED-Ed lesson from Adam Jacobson.

LOUIS PASTEUR’S EXPERIMENT (to disprove Spontaneous Generation)

Explained here in note form or Hank tells us about 3 world-changing Biology experiments (#1 is Pasteur’s and #3 is Miller-Urey’s) in a 4m 34s video.

Maybe you’ll find a video lesson covering some assessment statements by Stephanie Castle.

IGCSE Bio Topic 2 – Organisation of the Organism

All Topic 2 revision notes in downloadable word format.

Powerpoint cells and levels, click bio from Magdalena Ravagnan

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. 

793px-Organization_levels_mouse.svg

 

Just click to enlarge (thank you LadyofHats).

 

 

 

A lesson on How to Calculate Magnification from Ms Cooper: