Question

Sam applied all his strength to pull out a china rose plant from the ground. Still he failed to do so. But when he tried to pull out grass it could be pulled out easily. Why?

• A. China rose has taproot and grass has fibrous root system
• B. China rose has fibrous root system and grass has taproot system
• C. China rose and grass both have fibrous root system
• D. China rose and grass both have taproot system

Answer 1

The correct option is A China rose has taproot and grass has fibrous root system

• In monocot (single cotyledon) plants the primary root is not prominent. Their root system is shallow and does not penetrate as deeply. This type of root system is called fibrous root system. Grass has fibrous root system and thus can be pulled out of the soil easily.
  
• Taproot system is found in dicot (two cotyledons) plants. In them, the primary root is prominent and has the ability to grow deep into the soil. It strongly anchors the plant to the soil making the uprooting of such plants difficult. As a result, Sam was not able to pull out the china rose plant. E.g. Pea, green gram etc