In Opuntia the stem is modified into a flattened green structure to perform the function of leaves (i.e., photosynthesis). Cite some other examples of modifications of plant parts for the purpose of photosynthesis.
Ans.
Euphorbia is a large genus of flowering plants, also known as spurge. The stem of Euphorbia is fleshy and cylindrical in structure. The stem in this plant helps to carry out photosynthesis because of the presence of chlorophyll in the stem.