CHAPTER 5-TRANSPIRATION || ICSE || BIOLOGY

QUESTION 1

Why is polythene tied at base of stem

  • What do the above process represent. Define it
  • What leads to transpiration
  • What is a control setup. Suggest the same for this experiment
  • What will happen if dry cobalt chloride paper is kept in polythene
QUESTION 2

  • Why oil kept in beaker
  • Which of the beaker would lose most water .justify
  • What are 3 different types of transpiration
  • How will rate of transpiration affected by change in :Atmospheric pressure , temperature , velocity of wind
  • How can you prevent loss of water in form of transpiration(adaptations).Name one such plant


 
 QUESTION 3

  • Label 1-3
  • Give functions of 1 and bubble
  • Which plant can be used
  • Mention some limitations
  • How is transpiration useful in plants
  • In traditional method of transpiration how do we calculate rate of transpiration
  • In garreau's potometer why we use Calcium chloride vials (general question not in course)

 QUESTION 4
  • Name secretion of 1
  • Label 1-8
  • How many veins are shown in this diagram
  • differentiate between 4 and 3
  • Various methods by which water travel from vein to atmosphere
  • Is it monocot or dicot leave . Justify
QUESTION 5 
  • Differentiate in venetian of monocot and dicot leaves
  • Why are glass slide used in the experiment
  • What change is observed at the end of experiment as far as cobalt chloride paper is concerned. Justify
  • Give reason why TRANSPIRATION IS PRICE PAID BY PLANTS FOR PHOTOSYNTHESIS.

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