Using the Earth's Resources: Overexploitation...

This episode details the key ingredients in fertilisers: nitrogen, phosphorus, and potassium. It outlines the chemical production of nitrogen-based fertilisers, specifically ammonium nitrate, highlighting its rich nitrogen content due to its dual sources. We explain that phosphat ...  Show more

In this episode, we look at plants and nitrogen.Plants require nitrogen to produce proteins necessary for growth. While the atmosphere is full of nitrogen gas, plants cannot directly utilise this form. Instead, they absorb soluble nitrates from the soil. Crop harvesting depletes ...  Show more

In this episode, Sam Smith will discuss and help you understand the essential organic chemistry mechanisms and reactions you may encounter when taking the MCAT. From nucleophilic substitution reactions like SN1 and SN2 to aldol condensation and oxidation and reduction of alcohols ...  Show more

This episode explores the historical shift in drug discovery from natural sources to synthetic production. 

Initially, many essential medicines like Digitalis and Aspirin were derived directly from plants, highlighting the importance of botanical resources</stron ...

Emma goes through the different types of plant hormones for your GCSE Bio exam. She looks at the role auxins, gibberellins and ethene as hormones in plants. Perfect for AQA, Edexcel, OCR, WJEC and CIE exam boards. Ideal for preparing you for your <a href="http://bit.ly/38 ...

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 ...