10: Human Gas Exchange (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

This episode reviews the topic of Lipids, including: the structure and the roles of Triglycerides and Phospholipids. This episode is suitable for all examination boards but more specifically geared to AQA A-Level 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

This episode explains the role of carbon dioxide in the environment. It highlights that carbon dioxide is a greenhouse gas and discusses both its natural removal and release. Photosynthesis by plants and algae naturally removes carbon dioxide from the atmosphere while respiration ... Show More

<p>Liz explores everything you need to know about respiration for your GCSE Biology exam. She will look into what respiration is and why it is important for life. Ideal for preparing your GCSE Biology exam. For more info visit <a href="www.senecalearning.com"><strong>www.senecale ... Show More

<p>In this episode, we’ll describe the human nervous system, focusing on its role in responding to environmental changes. We’ll talk about the system&#39;s key components: the brain, the spinal cord and the neurones. The entire system works together to protect the organism. We’ll ... Show More

<p>Liz looks at thermoregulation for your GCSE Biology exam. In this episode, she will look at how the changes to body temperature are detected and what the responses to these temperature changes are. Liz looks at the role of receptors and blood vessels in thermoregulation. Perfe ... Show More

In this episode, we discuss the Earth's early atmosphere. Scientists generally agree that Earth's initial atmosphere, following its formation approximately 4.6 billion years ago, was heavily influenced by widespread and active volcanism. These eruptions released significant quant ... Show More

In this episode we will discuss unique physiology considerations for the pediatric patient and review its implications on pharmacodynamics Learning Objectives: Explain the components of fetal circulation and the transition to neonatal circulation Describe the unique aspects of pe ... Show More