Plant Physiology Questions

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Lecture 7
1. What are the equations for
b. atmospheric fixation
c. biological fixation
3. Why is unused ammonia or nitrate dangerous
4. Nitrate reductase
e. Describe the structure
f. How is it activated
g. How does it perform its job
h. How is it regulated
5. How are the levels of nitrate diff in parts of a plant 6. What are steps of the assimilation of nitrogen
7. What are the two types of GOGAT and what’s the difference between each 8. What are the equations for the reactions that are catalyzed by i.
j. GS
10. What is the water potential equation
11. What factors contribute to water potential
12. What pressure potential do turgid cells have
13. What does gating of aquaporins do
14. What 3 components contribute to water transport in plants 15. What is the main driving force
l. That moves water from roots to shoots
m. For transpiration
16. What does it mean to have low resistance pathway
17. How is water potential measured
18. What happens when water loss exceeds replacement (physical changes) Lecture 8 & 9
1. What are the components of signal transduction
2. What is the plant brassinosteroid pathway
3. What do phosphatases do
4. What is the abscisic acid pathway
5. What receptors are present in the
b. Plasma membrane
c. E.R.
d. Cytoplasm
e. Nucleus
7. What does activation of phototropin and phytochrome do 8. What are the three diff interactions of signal transduction pathways 9. What is photomorphogenesis
10. What is photoreversibility
11. Which is present the most in canopy shade leaves, Pfr or Pr 12. Phytochrome is a _____ that is capable of _____
13. What happens to circadian rhythm when there is
g. Continuous darkness
h. Light pulse in darkness
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