1: Cells (IGCSE/GCSE)

This episode reviews the topic investigating biological molecules, including: How to test for the presence of reducing sugars, non-reducing sugars, starch, proteins and lipids. This episode is suitable for all examination boards but more specifically geared to AQA A-Level Biology ...  Show more

This episode reviews the topic of Proteins, including: The structure of an amino acid and the formation of a peptide bond, the levels of the protein structure and the relationship between the structure and the function of proteins. This episode is suitable for all examination boa ...  Show more

In this episode, we’ll explore the fundamental building blocks of life: cells. We’ll distinguish between the two main cell types—eukaryotic and prokaryotic. Eukaryotic cells, found in organisms like plants and animals, are typically larger, while prokaryotic cells, such as bac ...

In this episode, Jamie explores the fascinating world of prokaryotic cells, focusing on their unique features such as plasmids, the absence of mitochondria and chloroplasts, and their distinctive way of storing genetic material.

This discussion is particularly valuable ...

In this episode, we’ll explore the distinct characteristics of prokaryotic cells and what sets them apart from more complex cell types. We’ll discuss the presence of plasmids—small DNA rings that enable genetic information exchange. We’ll examine how prokaryotic cells lack mem ...

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