Concept: This question tests the understanding of the primary functions of roots in plants.

Why (C) is correct:

1. Absorption of photosynthates: Roots primarily absorb water and minerals from the soil. Photosynthates (sugars produced during photosynthesis) are synthesized in the leaves and transported to other parts of the plant, including roots, via the phloem. Roots do not absorb photosynthates from the soil.

2. Breakdown of plant growth regulators: Roots can synthesize certain plant growth regulators (e.g., cytokinins) and are also target sites for their action, but their primary function is not the breakdown of these regulators. Breakdown typically occurs in various tissues as part of metabolic regulation, not as a dedicated root function.

Therefore, both 1 and 4 are not functions of the root.

Why other options are wrong:

• Providing a proper anchorage to the plant parts: This is a primary and crucial function of roots.
• Storing reserve food material: Many roots (e.g., carrot, radish, sweet potato) are modified to store food.

Common Mistake: Students might confuse the transport of photosynthates to the root with the root's ability to absorb them.

NEET Tip: Remember the three main functions of roots: Absorption (water/minerals), Anchorage, and Storage (AAS). Some roots also synthesize PGRs.

Correct Answer: (C)