Answer
Respiration in Frogs
Frogs exhibit different modes of respiration depending on their environment, utilizing specialized organs to efficiently exchange gases both in water and on land.
Respiration in Water
In aquatic environments, frogs primarily respire through their skin, a process known as cutaneous respiration. Their skin is thin, moist, and richly supplied with blood vessels, allowing for the direct exchange of oxygen and carbon dioxide with the surrounding water. This method is particularly efficient when the frog is submerged and is crucial for survival during hibernation in water.
Respiration on Land
On land, frogs rely on multiple respiratory surfaces. In addition to cutaneous respiration, they use their buccal cavity (the inside of the mouth), where gas exchange occurs through the moist lining. Most importantly, they utilize their lungs for pulmonary respiration. The lungs become the primary organs of respiration when the frog is active on land, especially during periods of high activity when oxygen demand increases.
Conclusion
Therefore, the statement that frogs respire in water by skin and buccal cavity is
partially incorrect, as buccal respiration is not significant underwater.
However, the claim that they respire on land using skin, buccal cavity, and lungs is
accurate.
Correct Interpretation: The statement is false for water but true for land.