GCSE Biology - Plant Hormones - Tropisms & Auxins скачать в хорошем качестве

GCSE Biology - Plant Hormones - Tropisms & Auxins

⭐️ https://www.cognito.org/ ⭐️ ** WHAT'S COVERED ** 1. How plants respond to environmental stimuli like light, gravity, and touch. 2. The role of hormones, particularly auxins, in controlling plant growth responses. Auxins are produced in shoot and root tips and diffuse to other areas. Auxins stimulate growth in shoots but inhibit growth in roots. 3. Explanation of phototropism: the growth response of plants to light. Shoots exhibit positive phototropism. Roots exhibit negative phototropism. 4. Explanation of geotropism (gravitropism): the growth response of plants to gravity. Shoots exhibit negative geotropism. Roots exhibit positive geotropism. 5. How the uneven distribution of auxins causes differential growth rates. ** EXAM BOARD INFO ** AQA - Separate/triple science only IGCSE Edexcel - Everything is relevant to your course! Edexcel - Separate/triple science only OCR 21st Century - Separate/triple science only OCR Gateway - Separate/triple science only ** CHAPTERS ** 0:00 Intro: How Plants Respond 0:16 Responding to Stimuli 0:50 Plant Hormones and Auxins 1:41 Phototropism and Geotropism (Gravitropism) 2:01 Rules of Auxin Distribution 2:21 Phototropism in Shoots 3:21 Geotropism in Shoots 3:41 Tropisms in Roots 4:09 Phototropism in Roots 4:29 Geotropism in Roots 4:47 Summary ** PLAYLISTS **    • GCSE Maths (9-1)      • GCSE Biology (9-1)      • GCSE Chemistry (9-1)      • GCSE Physics (9-1)      • A-Level Biology   #GCSE #Biology #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE #IB #AP