6.2 Variation and evolution
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Author Archives: Mr Cartlidge
6.3 The development of understanding of genetics and evolution
6.3.1 Theory of evolution (biology only)
6.3.2 Speciation (biology only)
6.3.3 The understanding of genetics (biology only)
A short, simple explanation of Gregor Mendel’s work and simple genetic crosses:
GCSE Bitesize – Inheritance, a tutorial (4m 46s):
BBC Short Circuit Genetics– a 19m video.
Genetic Diseases
Here are some videos about genetic diseases:Sam’s story (cystic fibrosis) & CF short movie; sickle cell anaemia; what is Huntington’s disease?
Pedigree analysis
Genetics pedigree problems from callr
6.3.4 Evidence for evolution
6.3.5 Fossils
6.3.6 Extinction
6.3.7 Resistant bacteria
6.4 Classification of living organisms
4.1 Photosynthesis
4.2 Respiration
For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. A powerpoint 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. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity.
Lessons from Ms Cooper: Respiration introduction in 7m; Aerobic respiration in 14m; Anaerobic respiration in 12m; Designing an experiment for rate of respiration in 4m 22s.
What is aerobic respiration? a short (51s) introductory video from Clipbank.
Science Bank 8 (Biological Reactions): you only need Part 2 – Respiration (from 5m 20s to 9m 55s):
Dr. Kiki talks about how fermentation works and whips up some home made ginger ale at the end.
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 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:
2.1 Principles of Organisation
2.2 Animal tissues, organs and organ systems
One Body by XVIVO (2m 14s):
Get Body Smart: superb interactive, illustrated tutorials and quizzes on human anatomy and physiology.
How much of your body is your own? – a great little quiz from the BBC