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6              Plants in the Surroundings




                                         and Environment








                    We see a large variety of plants around us as they                  KEY CONCEPTS

                    grow almost everywhere. Without plants, life on
                    earth cannot exist. We depend on plants for food                 •  Parts of a plant
                                                                                     •  Root system
                    and many other plant products. They are essential
                                                                                     •  Shoot system
                    for maintaining a balance in the environment.
                                                                                     •  Things we get from plants
                    Let’s recollect our previous learning on the diff erent
                    parts of the plant and their functions.


                    Parts of a Plant

                    We already know that a plant has many parts. Each part has a specifi c role to perform.

                    Roots hold the plant in its place and absorb nutrients from the soil to pass them to the

                    other parts of plant.

                    Stem holds the plant straight and gives support to the plant. It carries water and minerals
                    from the roots, and food from the leaves to various parts of the plant.

                    Leaf is the thin, fl at and usually green part
                    of the plant which grows from its stem or
                                                                                                                   bud
                    branch. It prepares food by the process of
                                                                                                                  fl ower
                    photosynthesis in the presence of air, water

                    and sunlight. It also helps in the exchange                    branch
                    of gases through stomata.                             shoot     fruit

                    Flower  helps a plant to reproduce. It                                                       leaf
                    develops into fruit in most plants.

                    Fruit encloses and protects the seeds                                                    stem

                    present inside it.

                    A plant has two main systems—the root                  root
                    system and the shoot system. Let’s know
                    about them.                                                           Parts of a plant




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