Question

Select the incorrect statement out of the following.

• A. Assimilatory roots capable of photosynthesis are present in Tinospora and Trapa.
• B. Haustoria of Cuscuta make connection with both xylem and phoem tissues of host.
• C. Reproductive roots of Ipomoea batata help in vegetative propagation.
• D. Epiphytic roots of Vanda possess well developed root caps and root hair.

Answer 1

The correct option is D Epiphytic roots of Vanda possess well developed root caps and root hair.

• Epiphytic roots of Vanda possess well-developed root caps and root hair. These roots hang in the air and possess spongy or velamen tissues to absorb moisture directly from the atmosphere. They lack root caps and root hair.
• Assimilatory roots are chlorophyll bearing green photosynthetic roots present in Tinospora and Trapa.
• Haustoria, the modified root of the parasitic plant Cuscuta make connection with both xylem and phloem tissues of the host to absorb nutrients and water.
  
• Reproductive roots are fleshy adventitious roots that serve as means of vegetative propagation as observed in Sweet potato (Ipomoea batata).