Human Defence Systems - GCSE Biology

In this episode, we will discuss the alveoli in the circulatory system.Alveoli are microscopic air sacs within the lungs where the crucial exchange of oxygen and carbon dioxide occurs between air and blood through diffusion. Their structure is highly adapted for this vital proces ...  Show more

In this episode, we look at transportation in cells. We will explain how substances move into and out of cells, highlighting three key mechanisms. Diffusion is described as the movement of particles from high to low concentration areas. Osmosis is presented as a specific type of ...  Show more

Don’t panic - it’s organic! In this additive-free episode, Jono covers EVERYTHING you need to about organic chemistry for your GCSE chemistry exam. Not to be CRUDE, but this episode is CRACKING. Saturate your brain with knowledge as Jono covers alkanes, alkenes, fractional dis ...

Richard looks at different bond types for your GCSE Chemistry exam. In this episode, he will look at the different types of chemical bonds that exist. Suitable for AQA, OCR, Edexcel, CIE and WJEC exam boards. Ideal for preparing your GCSE Chemis ...

Richard looks at ionic bonds for your GCSE Chemistry exam. In this episode, he will look at what ionic bonds are and their key properties. Suitable for AQA, OCR, Edexcel, CIE and WJEC exam boards. Ideal for preparing your <a href="http://bit.ly/2to1AEy" rel="ugc noopener noref ...

Richard looks at ionic compounds for your GCSE Chemistry exam. In this episode, he will look at how ionic compounds are formed and some key properties. Suitable for AQA, OCR, Edexcel, CIE and WJEC exam boards. Ideal for preparing your <a href="http://bit.ly/2to1AEy" rel="ugc n ...