Enumerate the morphological adaptations of Hydrophytes. Answer : Ans: 1. Roots are either absent (Wolffia, Ceratophyllum) or poorly developed (Hydrilla). Rooted hydrophytes have root caps but not others. Free floating hydrophytes may have Root pockets as ... upper surface in Nymphaea, Victoria, Nelumbo. Swollen and spongy petioles in Eichhornia and Trapa. ...
Name two free floating hydrophytes with offsets. Answer : Ans: Pistia, Eichhornia ...
Define communities? Who classified plant communities into hydrophytes, mesophytes and xerophytes. Answer : Ans: Community is a group of different species living under same climatic conditions. They are classified by Warming based on dependence on water...
Describe the cell organelle which is responsible for the synthesis of starch. Answer : The cell organelle responsible for the formation of starch is Chloroplast. It was discovered by Sachs and named by Schimper. It is usually disc shaped or Biconvex or Oval or spherical. ... granum and the unstacked thylakoids that connect the adjacent grana are called as Stroma thylakoids. ...
Name the living mechanical tissue? What is its function? Answer : Ans: Collenchyma. It helps in providing mechanical strength in aerial parts of dicots. If green, it carries out photosynthesis. Sometimes it is meristematic and gives rise cork cambium in dicot stems at the time of secondary growth. ...
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