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Answer each of the following questions in complete sentences: 1. What are the t
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Answer each of the following questions in complete sentences:
1. What are the three main substances plants need to grow?
2. What is the most common nutritional problem for plants? How do they overcome this problem?
3. What are two key differences between organic farming and conventional farming?
4. Explain the role of mycorrhizae in water uptake in plants. What do the mycorrhizae get in return?
5. Describe (in detail) the process of nitrogen fixation in bacteria. How do the bacteria assist plants?
6. Which plants have root nodules? Why is it beneficial to use these plants in crop rotation?
7. Define transpiration? How does it help move water up through a plant?
8. How do cohesion and adhesion assist transpiration? 9. What are guard cells? How do they control the transpiration rate of a plant? 10. Define the term sugar source and state where it can be found in plants. Define the term sugar sink and state where it can be found in plants.
11. Describe the pressure-flow mechanism of sugar transport in plants.
12. What is a hormone? List the five major types of plant hormones.
13. Describe the process of phototropism.
14. How does ethylene affect a fruit?
15. What happens to fruiting plants when they are sprayed with gibberellins?