17- Draw a barley seed and explain the process involving GA which results in the breakdown of starch into maltose.
18- What are the commercial applications of IAA?
Questions on experiments involving auxin 19- What is the name given to an emerging shoot in grasses?
Questions on experiments involving auxin 19- What is the name given to an emerging shoot in grasses? Coleoptile
20-What happens when auxin is evenly distributed?
21- What happens when auxin is concentrated on one side only? How does this happen naturally? What is the name of this process?
21-Answers: Light destroys IAA so growing shoots exposed to sunlight on one side only will have an asymmetric distribution of IAA (less IAA on side exposed to sunlight, therefore, lesser cell elongation on that side). The coleoptile grows to one side, this is called phototropism.
22- What happens if the tip is removed and then replaced?
23- What happens if the tip is removed and not replaced?
23- What happens if the tip is removed and placed on an agar block?
24- Once the tip has been removed, how can IAA be applied where the tip was? What would be the controls for this experiment?