Homeostasis 🧫 GCSE Biology Learning & Revisi...

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

In this episode, we discuss conditions and equilibrium in a reversible reaction.Reversible reactions reach a state of equilibrium, where the amounts of reactants and products remain constant. Altering the conditions of such a system will disrupt this balance. Le Chatelier's princ ...  Show more

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

In this episode, we will discuss reaction pathways.Efficient chemical reactions are favoured for their cost-effectiveness and minimal waste generation, as highlighted by the concept of atom economy, which measures the proportion of reactants incorporated into desired products. Ho ...  Show more

The MCAT Basics Podcast begins a new series on Metabolism, and in today's episode, Alex Starks talks about Glycolysis. The series covers the chemistry, biochemistry, and biology of glucose metabolism and how this high-yield MCAT topic can be tested on the AAMC MCAT Exam. [00:55] ...  Show more