Download Final Exam Study Guide - Plant Structure and Function - Fall 2011 | PLNT_S 2125 and more Study notes Agricultural engineering in PDF only on Docsity! 1 2011 Plant Structure & Function Exam 3 (Final) Study Guide Helpful hints: 1. Review your labs/homework/quizzes too. 2. Questions will be fill in the blank and short answer. 3. This is not a comprehensive study guide! (meaning that the test questions will not be limited to what is in this study guide) 1. List six important facts about auxin (IAA) in plants; for example, where is most auxin produced, how is most of it transported, what are some of its important roles? 2. List four important facts about cytokinin (zeatin) in plants; for example, where is most cytokinin produced, how is it transported, what are some of its important roles? 3. Dwarf mutants of maize or pea usually lack which hormone? 4. Which hormone is last to “peak” in concentration in a developing seed on a cereal grain plant? 5. Which hormone causes the “triple response” in pea, mung bean and Arabidopsis seedlings? 6. Cabbage, a long day plant, will “bolt” and flower under short days when treated with which hormone? 7. Which hormone is a gas? 8. Failure to synthesize which hormone leads to vivipary in developing maize seeds? 2 9. Flowering in many plant species is controlled by the a) length of the day, or b) length of the night? Circle the best answer. 10. Which color of light is responsible for converting the Pfr form of phytochrome into the Pr form? Circle the correct answer. a) blue b) green c) red d) far-red e) ultraviolet 11. To keep cut leaves green in a dark room for several weeks, you would paint them with which hormone? 12. Which hormone is primarily in control of stomatal closure? 13. Which hormone is actually the primary cause of leaf abscission in the fall? 14. Name the hormone that stimulates rooting of cultured callus cells. 15. List the two hormones that interact to control lateral branch formation in plants, and explain how they work together to control lateral bud development. 16. Will a blue light, red light or far-red light-pulse disrupt the length of the night in photoperiodic flowering responses? 17. Which form of phytochrome results in plant activity, Pr or Pfr? 18. What is the name of a blue light receptor in plants? 19. Engineering tomatoes that do not ripen involves blocking the production of which plant growth regulator? 20. “Precocious germination” mutants are called _____________ mutants. 21. What is a plant hormone? 22. What is a meristem. Name 4 different types of meristems and describe where they are found on a plant.
