Category : 7th Class
Plants have evolved themselves in such a manner that their every part may get air from atmosphere individually. Therefore, they do not need a respiratory system like animals. All parts of plants like roots, stem, and leaves perform respiration individually. Root has root hair for exchange of respiratory gasses. Root hairs lie in-between the soil particles, where air is trapped and receive air through the process of diffusion and send to the cells of root. Older plants have a pore called lenticels instead of root hair for exchanging respiratory gasses. Stem also have lenticels to get required air. Leaves have a pore on its lower surface called stomata through which exchange of respiratory gasses takes place.
Look at the Following Picture of Respiration in Plants
Codi: Plants produce carbon dioxide during respiration
Jack: Only animals produce carbon dioxide
Who is correct?
(a) Codi
(b) Jack
(c) Both are correct
(d) Both are incorrect
(e) None of these
Answer: (a)
Which one of the following is used by plant for exchanging respiratory gasses?
(a) Stomata
(b) Lenticels
(c) Root hair
(d) All of these
(e) None of these
Answer: (d)
You need to login to perform this action.
You will be redirected in
3 sec