Respiration in plants is opposite of photosynthesis. Respiration is important in plants, for plant growth and development. Respiration can be defined as breakdown of complex molecules and oxygen to generate carbon dioxide. It is a catabolic process in which complex compounds are broken down due to breaking of C-C bond and hence energy releases called as respiration. So can you answer the simple question.
Do plants breath ?
The answer is obviously yes. Plants also needs oxygen and they give out carbon dioxide. But unlike animals, plants don’t have specialized organs or respiratory system, because every part of plant has its own gaseous exchange system. Plants don’t require much oxygen as compared to animals. Because every part of the plant can take care of its own gaseous exchange. Plants are respire through the small pores which are present on leaves, stem and roots such as stomata and lenticels.
The equation of respiration in plants can be explained as, the complex organic molecule more specifically glucose is breakdown in presence of oxygen and leads to formation of carbon dioxide and water with the release of energy, this process is called as cellular respiration.
C6H12O6+ 6O2 –> 6H2O + 6CO2 + energy
So, let’s discuss about cellular respiration, which is takes place in plants. There are 3 steps of cellular respiration in plants.
1.) Glycolysis
2.) Citric acid cycle
3.) Electron transport chain
1.) Glycolysis :The first step of cellular respiration takes place in cells of the specialized part. The meaning of term glycolysis is glycol= sugar and lysis= breakdown. So, glycolysis can be defined as, breakdown or oxidation of glucose to produce 2 molecules of pyruvate. The glycolysis is carried out in all living organisms.
C6H12O6 + ADP +Pi —> 2 pyruvate + ATP
This is the first step in cellular respiration , that is breakdown of glucose or partial oxidation of glucose into 2 molecules of pyruvate with release of energy.
2.) Citric acid cycle :It is the 2nd step in cellular respiration. It is also called as krebs cycle, the name given from the name of scientist who invented the cycle. Citric acid cycle occurs when pyruvate is converted to oxaloacetate with the series of steps. The equation can described as follows :
Pyruvate ———————-> Acetyl Co. A
Acetyl Co. A + NAD + FAD ———————-> CO2 +ATP
3.) Electron transport chain :The last step in plant respiration is electron transport chain, in which oxygen is released in the last step of the cycle from the series of steps.
Question and answers :
1.) How do plants breath ?
Answer :- yes. Plants also needs oxygen and they give out carbon dioxide. But unlike animals, plants don’t have specialized organs or respiratory system, because every part of plant has its own gaseous exchange system. Plants don’t require much oxygen as compared to animals. Because every part of the plant can take care of its own gaseous exchange. Plants are respire through the small pores which are present on leaves, stem and roots such as stomata and lenticels.
2.) What is cellular respiration ?
Answer :-the complex organic molecule more specifically glucose is breakdown in presence of oxygen and leads to formation of carbon dioxide and water with the release of energy, this process is called as cellular respiration.
3.) What are the steps of cellular respiration ?
Answer :-There are 3 steps of cellular respiration in plants.
1.) Glycolysis
2.) Citric acid cycle
3.) Electron transport chain
4.) What is glycolysis ?
Answer :- glycolysis can be defined as, breakdown or oxidation of glucose to produce 2 molecules of pyruvate. The glycolysis is carried out in all living organisms.
5.) What is krebscycle ?
Answer :-It is the 2nd step in cellular respiration. It is also called as krebs cycle, the name given from the name of scientist who invented the cycle. Citric acid cycle occurs when pyruvate is converted to oxaloacetate with the series of steps.
6.) What is electron transport chain ?
Answer :-The last step in plant respiration is electron transport chain, in which oxygen is released in the last step of the cycle from the series of steps.
7.) What is the equation of respiration in plants ?
Answer :- C6H12O6+ 6O2 —-> 6H2O + 6CO2 + energy