Match the Following: Microorganisms and Associated Processes

Choose the correct answer from the options given below:

Correct option is D

In this match, the correct associations between microorganisms and their respective processes are as follows:

• Bacillus is associated with ammonification (ii), where it plays a key role in the decomposition of organic matter, leading to the release of ammonia.
• Agrobacterium is known for its involvement in denitrification (i), converting nitrates into nitrogen gas.
• Rhizobium is directly associated with N-fixation (iv), as it forms symbiotic relationships with legumes to fix atmospheric nitrogen.
• Thiobacillus is involved in the conversion of sulphur compounds into sulphate (iii), contributing to the sulphur cycle.

Thus, the associations are correctly matched according to their ecological roles.

Information Booster

• Bacillus: Important for decomposing organic material; contributes to nutrient cycling through ammonification.
• Agrobacterium: Often used in genetic engineering; aids in the nitrogen cycle by helping in denitrification.
• Rhizobium: Key player in sustainable agriculture due to its nitrogen-fixing ability in legumes.
• Thiobacillus: Crucial for the sulphur cycle; aids in the conversion of sulphur to a form usable by plants.

Additional Information

• The process of ammonification is vital for recycling nutrients in ecosystems, making them available for plant uptake.
• Understanding these microbial processes is critical for enhancing soil health and fertility in agricultural practices.