“What+Do+Roots,+Stems,+and+Leaves+Do?”





*Roots hold a plant tightly in soil and take water and minerals the plant needs from the soil. *Stems hold up the leaves, flowers, and fruit of a plant and carry the water and minerals to other parts of the plant. *Green leaves make most of the sugars a plant needs to live and grow. __1-What are minerals? Why they are important for the plants? __ hawraa :A mineral is a naturally occurring solid cehmical substance that is formed through geological processes and that has a characteristic chemical composition, a highly ordered atomic structure, and specific physical properties. Minerals are used by plants to produce their essential organic matter.

Kawssar: Any naturally occurring inorganic material that has a (more or less) definite chemical composition and characteristic physical properties. plants need minerals to produce their organic matter ===**Alia Olivia: Minerals are** a naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characteristic crystalline structure, color, and hardness**. Plants need minerals to help them grow, and produce essential organic matter.**===

__2-What is the function of stems in plants? __ hawraa: Stems have four main functions which are: Support for and the elevation of leaves, flowers and fruits. Transport of fluids between the roots and the shoots in the xylem and phloem. Storage of nutrients. The production of new living tissue. = = Kawssar: The stem of a plant provides structural support, transportation between the root and leaves, and a location of food storage. Hold the leaves up toward the light. move mineral and water through the xylem and move sugar to phloem. The stem has the ability to move up/down to reach more sunlight also. **Alia Olivia: Support, transportation and food storage.** __3-How do the green leaves of plants make sugar? __ Kawssar: through photosynthesis **Alia Olivia: Photosynthesis.** **hawraa: photosynthesis.** References
 * Cooney,T,Dispezio,M, Matamoros,A,Nequist,K,& Ostlund,K.(2000). Scott Foresman Science( Chapter 1 “ How Plants Live and Grow” p. A4-A26). Glenview,New York, United States of America: Addison-Wesley Educational Publishers Inc. ISBN: 0-673-59313-4. **


 * Plant Parts [Web] Retrieved March 2011 from [] **