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

In this episode, we will discuss plant hormone uses and light investigation.Plant hormones are valuable tools in agriculture and horticulture, manipulating plant growth for various purposes. Auxins find use as herbicides and rooting agents, whilst ethene regulates fruit ripening. ... Show More

Day two of Immunity Week! Five episodes in Five days all on the topic of Immunity. Today we learn all about Cell Mediated and Humoral Immunity. Find us on the internet!Our website - Teachmescience.co.ukEmail - teachmebiologycast@gmail.comTwitter - twitter.com/teachmebiocastInstag ... Show More

This week, Emma's got the lowdown on facilitated diffusion and polarized membranes for your AP Bio exam. She looks at how molecules diffuse through carrier proteins or channel proteins in membranes. Perfect for AQA, Edexcel and OCR exam boards. Ideal for preparing you for your A ... Show More

Biology/Biochemistry: In this fourth episode of biology/biochemistry, we talk about the digestive system. Topics like the anatomy, enzymes, hormones, and more. 

This episode reviews the topic of cells, including: The levels of organisation in multicellular organisms. The differences between animal and plant cells and the process of cell differentiation and the uses of stem cells. This episode is suitable for all examination boards but mo ... Show More

Welcome to Immunity Week! Five episodes in Five days all on the topic of Immunity. Today we kick off with an episode all about Pathogens, Antigens and Phagocytosis!Find us on the internet!Our website - Teachmescience.co.ukEmail - teachmebiologycast@gmail.comTwitter - twitter.com/ ... Show More

This episode reviews the topic of human gas exchange including: The process of breathing, the role of the alveoli in gas exchange and the effects of smoking on the respiratory system. This episode is suitable for all examination boards but more specifically geared to IGCSE Edexce ... Show More

Last day of Immunity Week! Five episodes in five days all on the topic of Immunity. Today we learn all about Antibodies!Find us on the internet!Our website - Teachmescience.co.ukEmail - teachmebiologycast@gmail.comTwitter - twitter.com/teachmebiocastInstagram - @teachmebiologycas ... 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

This episode covers the Immunology chapter of Crush Step 1, including topics such as: - Lymphoid structures - Innate versus adaptive immunity - Cells of the immune system - Major Histocompatibility Complex 1 & 2 - B cells, antibodies, and humoral immunity - T cells, cell-mediated ... Show More