Page 107 - Science Course 1 (Book 1)
P. 107

Structures of Plants                              Mo4-L1a: How do Plants Survive?
        Lesson 1

                                                          Let’s Begin


                                                          What is a Plant?
          In this topic, you will learn the following
          lessons:                                        A plant is a multicellular organism which is capable
                                                          of producing its own food using energy from the Sun.
          Mo. 4 - L1a: How do Plants Survive?
          Mo. 4 - L1b: What are the Different Types       Like all other organisms, plants are made up of cells.
                                 of Plant?



          Mo4-L1a         How do Plants Survive?


        KEY CONCEPTS:
        1. How do plant structure such roots, stem, and
            leaves ensure a plant’s survival?




                     Vocabulary A-Z

                     Let us learn some vocabulary         A plant cell contains chloroplasts, which are
                                                          organelles that make food.

                                                          Unlike an animal cell, a rigid cell wall surrounds a
                                                          plant cell and helps protect and support it.
        Rhizoid

        a structure that anchors a nonvascular plant to a   A plant cell also contains a large central vacuole.
        surface.












                              Rhizoid
        Stoma
        a small opening in the epidermis, or surface layer,
        of a leaf.
                                                          Most plants have
                                                          roots, stems, and
                                                          leaves.
                                      Open
                                      Stoma               Roots anchor a plant
                                                          in the soil, enable it
                                                          to grow upright, and
                                                          absorb water and
                                                          minerals from the soil.




                   Close
                   Stoma





    100
   102   103   104   105   106   107   108   109   110   111   112