Tag Archives: glucose

2.3 Carbohydrates & Lipids

BioKnowledgy 2.3 Carbohydrates and lipids from Chris Paine (at Dulwich College Shangai) – taken from his fabulous blog BioKnowledgy.

Find a video lesson on this sub-topic at Dan Rott videos, or many assessment statements are covered by Stephanie Castle (with more being added all the time).

A lovely site about polymers that includes starch and cellulose (with a nice animation), and hers’s a short, simple animation to show glucose in water. Finally, here is an excellent lesson from TED-Ed on on what is fat? – in a bit more detail than we need.

6.5 Neurons & Synapses

Thanks again Mr Taylor (of iBiology) for this powerpoint from the OLD syllabus. 

From Sinauer Associates we have an animated, narrated tutorial on Reflex Arcs which also includes a quiz and here are animated, narrated tutorials on the synapse and action potentials.

Click on ‘Signal Transduction’ to see an Interactive Animation from Wiley on how hormones work & Cholera (& lots more that you don’t need to know).

An animated tutorial from McGraw Hill Education on blood sugar regulation in diabetics. and here is ‘What does the Pancreas do?’ (from Emma Bryce & TED-Ed):

In Crash Course Biology #26 – The Nervous System, Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body. In #33 – Great Glands: Your Endocrine System, Hank fills us in on the endocrine system.




Lovely infographic – just click on it to enlarge.

B4.2 Plant Nutrition (Photosynthesis)

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. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity.

B4.2 Revision notes in downloadable word format and here are the key terms and some definitions: Key Terms B4.2

The simple story of photosynthesis and food from TED-Ed (4m 1s).

This powerpoint covers both Plant and Animal nutrition:

Photosynthesis lesson (Ms Cooper’s IGCSE Cambridge Biology):

Factors affecting Photosynthesis – experiments (Ms Cooper’s IGCSE Cambridge Biology):

Limiting Factors in Photosynthesis (Ms Cooper’s IGCSE Cambridge Biology):

Science Bank 8 (Biological Reactions): you just need Part 1 – Photosynthesis (to 5m 20s):

Photosynthesis from Curriculum Bites (9m 30s); GCSE Bitesize – Green Plants as Organisms – covers nutrition (photosynthesis), hormones & transport of water (16m 27s) & Bitesize Top 20 Science Demos covers Photosynthesis (3m 26s). Videos include BBC iScience – Photosynthesis (2m 57s), Growth & Photosynthesis from Clipbank (4m 52s) & BBC Short Circuit – Photosynthesis (19m).

Limiting Factors in Photosynthesis – CO2 from Clipbank (1m 57s).

Structure of the Leaf (from The Virtual School):

Plant Structure– especially leaf structure from Clipbank (2m 10s).

Igcse biology edexcel 2.39 2.43 from Marcos Rodriguez

FERTILISERS (the uses, and the dangers of overuse):

A short video form The Virtual School – what are fertilisers?:

The danger – Eutrophication – a short video from The Virtual School:


IGCSE Biology: Coursebook, chapter 6, p. 49-60