Page 13 - E-Science Prim.5 2024-2025 U1 Con.1_Neat
P. 13

How does it occur?

1- The plant leaves absorb carbon dioxide from the air that
   enters through stomata.

2- The green leaves absorb sunlight by chlorophyll “which
   gives the leaf its green color”.

3- The plant roots absorb water & minerals by root hairs.
4- The leaves get the water and minerals by:

   a) Plant’s roots.
   b) Xylem in the stem.
   c) Smaller vessels of xylem in the leaves.
5- All the previous substances react together to produce:
 a) The plant food (Glucose or sugar, starch, fats and proteins)

      The plants use glucose as a source of energy to live and
      grow.
 b) Oxygen gas and water vapor: they are released in air
    (as waste materials for the plant & as basic needs for other
    livings.)
6- Glucose is transported from the leaf to other parts through the
   phloem.

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