Hormones: Endocrine System, Thryoxine & Adrenaline 💓 - GCSE Biology Learning & Revision

Liz looks at the endocrine system for your GCSE Biology exam. In this episode, she will look at the production of and responses to the hormones thyroxine, which controls the basal metabolic rate, and adrenaline, which controls many processes including the fight or flight response. Perfect for AQA, Edexcel, OCR, WJEC and CIE exam boards. Ideal for preparing you for your GCSE Biology exam. Click here for the full course, or visit this link: http://bit.ly/387qVBv