A2 Biology Tropisms OCR A Chapter 164

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Learn about the auxin, indoleactic acid (IAA) and how it elongates cells in shoot tips and inhibits cell growth in roots to cause the tropism responses (phototropisms and gravitropisms). • For past paper questions linked to this topic click these links. • https://missestruch.co.uk/ • Any questions or feedback please comment below :) Don't forget to subscribe. • Recommended Revision and textbooks: • A-level • AQA A-level Biology textbook (this is what I use at my school)- OUP https://amzn.to/2MWiFvY • CGP revision guide https://amzn.to/36B26h7 • CGP workbook https://amzn.to/39A55YZ • Maths skills for A-level Biology https://amzn.to/37GaHPI • Synoptic essay book https://amzn.to/2ukHQ4Y • AQA A-level biology practical skills guide https://amzn.to/2FkUSSn • A-level Year 1 workbook https://amzn.to/36s8EhE • A-level Year 2 workbook https://amzn.to/2QqpmIY • GCSE • AQA GCSE Biology (the book I use with students at school) https://amzn.to/2sMjIrm • GCSE Biology workbook https://amzn.to/2QnojJJ • Revision and practice questions https://amzn.to/2tvv1Eq • Practical skills workbook https://amzn.to/2tzo8ln • Gear to create videos on my blog: • Go Pro Hero 7 for all practical video footage and time lapses https://amzn.to/2tzwg5m • Surface Pro Laptop https://amzn.to/37zND4U • Toshiba 1TB external portable hard drive https://amzn.to/36qPkBt • • Image credits • @letscreatesomething • https://commons.wikimedia.org/wiki/Fi... • https://commons.wikimedia.org/wiki/Fi... • https://commons.wikimedia.org/wiki/Fi... • • Music: Soho - Riot • Soho – Riot (No Copyright Music) • DISCLAIMER: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission. There is no additional charge to you!

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