CHAPTER 7|| CHEMICAL COORDINATION IN PLANTS

ANSWER THE FOLLOWING QUESTIONS IN BRIEF
  1. Differentiate between :stimulus and response            Plant hormone and animal hormone
  2. Where does cell division in plants take place
  3. Who coined term hormone
  4. Give four characteristics of hormone coined by FW Went
  5. Define:Parthenocarpy , Apical dominance
  6. Write full form of IAA , GA3 , ABA
  7. Give 4 characteristics of hormone used in food industries
  8. Differentiate between false fruit and true fruit with example
  9. Who discovered cytokinins. Give it's 4 characteristics
  10. How does cytokinins help in tissue culture
  11. Give 4 characteristics of hormone which help in sprouting of potato tuber
  12. Why ABA is called stress hormone . Where are they found
  13. What is abscission layer
  14. Define tropic movement
     
  15. Differentiate between geotropism and chemotropism
DIAGRAM BASED QUESTIONS
QUESTION 1
  • Mention aim of experiment
  • Give one precaution for the same
  • Which hormone lead to bending movement of the plant . Why
  • Define the above tropic movement
  • What is the stimulus of above experiment
QUESTION 2
  • Mention aim of the experiment
  • What is clinostat
  • Draw diagram when clinostat rotates
  • When clinostat is rotated why don't we get same observation
QUESTION 3
  • What is aim of the experiment
  • What is function of tendrils
  • Give an example of one such plant
  • What will happen when there is stimulus of touch. What is reason for such an observation
  • What is function of X. Why these plants need x
QUESTION 4

In experiment to prove that roots are positively hydrotropic and shoots are negatively hydrotropic
  • What is use of saw dust
  • Draw it's well labeled diagram
  • What do we observe at the end of the experiment .
  • What is the strange thing you notice in the experiment . why.

 

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