Compare the respiration in higher plants with the respiration in lower plants
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The respiration is the process in which the food material is oxidized and energy is released and stored in the form of ATP.
It is classified into two types, aerobic and anaerobic depending upon the availability of the oxygen.
1)
Respiration in higher plants-
Higher plants makes use of aerobic respiration.
In this respiration glucose gets split into 2 molecules of pyruvic acid in the cytoplasm through enzymes. Oxidative decarboxylation of pyruvic acid takes place.
After that further oxidation of pyruvic acid takes place in the mitochondria during Krebs cycle.
Then, the energy associated with the liberated electrons is used to synthesize ATP. Eventually, water is formed as the by product.
38 ATP molecules are produced during complete oxidation of glucose in aerobic respiration.
2)
Respiration in lower organisms-
These organisms don’t use oxygen for respiration. This is called anaerobic respiration or fermentation.
The conversion of glucose into pyruvic acid takes place in this type of respiration also.
The further conversion of pyruvic acid is different in aerobic and anaerobic respirations. The energy produced is low. Ethanol and carbon dioxide are the final products.
It is classified into two types, aerobic and anaerobic depending upon the availability of the oxygen.
1)
Respiration in higher plants-
Higher plants makes use of aerobic respiration.
In this respiration glucose gets split into 2 molecules of pyruvic acid in the cytoplasm through enzymes. Oxidative decarboxylation of pyruvic acid takes place.
After that further oxidation of pyruvic acid takes place in the mitochondria during Krebs cycle.
Then, the energy associated with the liberated electrons is used to synthesize ATP. Eventually, water is formed as the by product.
38 ATP molecules are produced during complete oxidation of glucose in aerobic respiration.
2)
Respiration in lower organisms-
These organisms don’t use oxygen for respiration. This is called anaerobic respiration or fermentation.
The conversion of glucose into pyruvic acid takes place in this type of respiration also.
The further conversion of pyruvic acid is different in aerobic and anaerobic respirations. The energy produced is low. Ethanol and carbon dioxide are the final products.
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Answer:
In lower plants the respiration is rather simple, it just involves the exchange of gases like carbon dioxide and oxygen and then a breakdown of glucose to release energy.
In higher plants, as they are more developed and have different structures, respiration is a bit complicated. The leaves respire through the stomata which exchange the carbon dioxide and oxygen from the atmosphere. The wooden bark present on the trunk of the tree has lenticel which allows the respiration.
For the breakdown of the glucose, they have glycolysis and then the citric acid cycle which results in the formation of ATP as energy.
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