Assertion (A) Analysis: Ruminant Digestion Capability

The assertion states that ruminants are capable of digesting complex plant material. This is a well-established fact in biology. Animals like cows, sheep, and goats are ruminants and possess specialized digestive systems enabling them to break down tough plant components like cellulose, which many other animals cannot digest effectively.

Reason (R) Analysis: Rumen Microorganism Function

The reason explains that the rumen, a part of the ruminant's digestive system, hosts a diverse community of microorganisms. These microbes produce various enzymes capable of degrading plant polymers, such as cellulose. This statement accurately describes the symbiotic relationship in ruminants, where microorganisms break down complex plant matter.

Relationship Between Assertion (A) and Reason (R)

The microorganisms within the rumen are crucial for the digestion of complex plant materials. They possess the necessary enzymes (e.g., cellulase) to break down cellulose and other polysaccharides into simpler molecules (like volatile fatty acids) that the ruminant can absorb and utilize for energy. Therefore, the microbial activity described in Reason (R) directly explains the capability mentioned in Assertion (A).

Conclusion

• Assertion (A) is correct: Ruminants can digest complex plant material.
• Reason (R) is correct: Rumen microorganisms produce enzymes that degrade plant polymers.
• Reason (R) provides the correct explanation for Assertion (A).

Thus, both statements are correct, and (R) is the correct explanation of (A).