Plant Growth Hormones 0.0 / 5 ? BiologyPhotosynthesis and transpirationGCSEEdexcel Created by: hanrobothamCreated on: 03-05-16 19:32 What is phototropism? The growth of a plant that responds to light. Shoots are positively phototrophic - they grow towards light. 1 of 6 What is gravitropism? Growth of a plant that responds to gravity. Roots are positively gravitropic as they grow downwards. 2 of 6 What is auxin? A plant hormone that controls to growth at the tips of shoots and roots. 3 of 6 How can phototropism benefit a plant? It enables to plant to absorb more light for photosynethesis to produce sugars which provides energy for growth. 4 of 6 How have gravitropsim benefit a plant? It enables a plant to extend their deeps deep into the soil to anchor the plant down and to absorb more water and minerals. 5 of 6 What is gibberellin? A plant growth hormone that stimulate seed germination, stem growth and flowering. 6 of 6
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