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Differentiate Between Stomata and Hydathodes. - Biology

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Question

Differentiate Between Stomata and Hydathodes.

Distinguish Between

Solution

Stomata Hydathodes
Stomata pass out water in the form of vapours. Hydathodes send out water in the form of droplets.
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Types of Transpiration
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Chapter 4: Transpiration - Differentiate

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ICSE Biology [English] Class 10
Chapter 4 Transpiration
Differentiate | Q 7

RELATED QUESTIONS

Given ahead is a diagram of an experimental setup to study the process of transpiration in plants. Study the same and then answer the question that follows:

  1. Name the colour of dry cobalt chloride paper.
  2. Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
  3. Why are glass slides placed over the dry cobalt chloride papers?
  4. After about half an hour, what change, if any, would you expect to find in the cobalt chloride paper placed on the dorsal and ventral sides of the leaf? Give a reason to support your answer.

The apparatus shown in the following diagram is Garreau’s potometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After few hours, CaCl vials were taken out and weighed again.

What is the purpose of using a manometer?


Given below is an apparatus used to study a particular process in plants. Study the same and answer the questions that follow :

(i) Name the apparatus.
(ii) Mention one limitation of this apparatus.
(iii) Which phenomenon is studied with the help of this apparatus?
(iv) What is the function of the part marked ‘reservoir’?
(v) What is the role of the air bubble in the experiment?


Draw a labeled diagram of the stomatal apparatus and label the following in it: Stoma, Guard cells, Chloroplast, Epidermal cells, and Cell wall.


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Write a short note on lenticular transpiration.


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