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Studygirl54321
auxin levels on plants.

2018 short question: suggest what could cause an unequal concentration of auxin in a shoot or in a root. i looked up marking scheme but i just dont understand this question at all. if anyone could help understand that would be great. cant find the aswer in books or copy.


2 Comments
Studygirl54321
Shoot: Difference in light direction or gravity OR Root: Gravity or difference in water concentration thats the marking scheme. i just dont under stand how these factors can cause unequal concentration of auxin in root or shoot.
Abagail Byrne
If a shoot starts to grow sideways - at an angle or horizontally, gravity causes more auxin to concentrate on the lower side producing an unequal conc. Therefore the lower side cells are stimulated to grow faster causing the shoot to grow and bend upwards.
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