Assertion (A) : Decomposition process is slower if detritus is rich in lignin and cutin. 1 Reason (R) : Decomposition………………

Class 12th Biology, Question paper 2023 -Assertion (A) : Decomposition process is slower if detritus is rich in lignin and cutin. 1 Reason (R) : Decomposition is largely an oxygen requiring process.

Question :Assertion (A) : Decomposition process is slower if detritus is rich in lignin and cutin. 1 Reason (R) : Decomposition is largely an oxygen requiring process.

The correct answer is -The Assertion (A) is correct, but the Reason (R) is not a correct explanation for the Assertion.

Lignin and cutin are complex organic compounds that are found in the cell walls of plants. They are highly resistant to degradation and take a long time to decompose. Hence, if the detritus is rich in lignin and cutin, the decomposition process is slower.

The Reason (R) is not a correct explanation for the Assertion (A) because decomposition is not solely an oxygen-requiring process. While aerobic decomposition does require oxygen, anaerobic decomposition can also occur in the absence of oxygen. In fact, anaerobic decomposition is the dominant process in wetland environments and can also occur in other environments where oxygen is limited. Therefore, the Reason (R) is not a correct explanation for the Assertion (A).