EASY
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Stem is the respiratory organ in plants.

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Important Questions on Respiration - The Energy Producing System

EASY
 Leaves of the healthy potted plant are coated with Vaseline. It will lead to 
HARD
Answer the following short answer-type question:
Write any two points of differences between respiration in plants and animals.
HARD

Graph represents the measurement of pH in plant leaves during 36 hrs. of photosynthetic activity. It indicates that acid products were being:

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EASY

Given below is a diagram of the stomatal apparatus. Match the labels with the corresponding names of the compounds. 

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Choose the correct combination.

MEDIUM
The habitat of plants related with the presence of sunken stomata in leaves is-
MEDIUM

Study the diagram and the list given below.

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i) Chloroplast

ii) Epidermal cell

iii) Guard cell

iv) Subsidiary cell

v) Stomatal pore

The correct match is

EASY
Name the pores through which exchange of gases takes place.
MEDIUM
Which of the following in guard cell is responsible for opening of stomata?
EASY
 Exchange of gases in leaves takes place through the _____.  
EASY
Stomata are the tiny openings found on leaves.
MEDIUM
Explain the process of respiration in the roots of a plant.
MEDIUM
Describe the process of respiration in the roots of a plant.
MEDIUM
Meeta asked Rekha not to sleep under the tree at night. Give the reason for the same.
MEDIUM
Which of the following theory gives the latest explanation for the closure of stomata?
EASY
Match structure given in Column I with function given in Column II.
Column I Column II
(i) Stomata  (a) Absorption of water
(ii) Xylem (b) Transpiration
(iii) Root hairs (c) Transport of food
(iv) Phloem (d) Transport of water
  (d) Synthesis of carbohydrates
EASY
What are stomata? Give two functions of stomata.
MEDIUM
Describe the process of respiration in the leaves of a plant.
MEDIUM
Name any two parts of plants through which exchange of gases takes place during respiration.