Q9 of 367 Page 46

Name the areas in a woody stem through which respiratory exchange of gases takes place.

Lenticels present on the stem of a plant exchange gases for respiration.


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7

Name the process by which plant parts like roots, stems, and leaves get oxygen required for respiration.

 8

Name the pores in a leaf through which respiratory exchange of gases takes place.

 10

What is the name of the extensions of the epidermal cells of a root which help in respiration?

 11

Out of photosynthesis and respiration in plants, which process occurs :

(a) all the time ?


(b) only at daytime ?