01 DEFINITION Root Roots help to absorb water. In tap root, the secondary root emerges from the primary root. In fibrous root, the primary root and secondary root emerges from the same point. 02 DEFINITION Modifications of roots Roots are the part of the plant which is mainly used for support and anchorage of plants. Some of the roots like carrot and radish are modified to perform a special function like storage of food. The food stored in the roots is utilized during unfavorable conditions. Roots like Rhizophora, are modified for gaseous exchange. They have minute pores which help to exchange gases. Stilt roots provide mechanical support to the plant e.g., sugarcane. Climbing roots provide aerial support to the plant e.g., vanilla. Clinging roots provide mechanical support to the plants e.g., orchids. Sucking roots helps to withdraw nutrition from other parts of the plant e.g., cuscuta. Floating roots help the aquatic plants to sto...
Class 11 science ,biology solution ,