Learn the green plants- the food producers See the leaf structure (parts of the leaf ) and function (food production, storage, breathing organ) Food factory of plants Process of photosynthesis

1. Class 4-Science
Rajashri Bhairamadgi
Green Plants- The Food Producer
Part -1

2. } Living things need food to grow and repair
damage
} Some can produce of their own, while some
depend on other
} Only green plants can make food
} It has chlorophyll (green coloured substance)
which makes trees looks green

3. } Structure and function of leaf
} The process of making food-
Photosynthesis

5. } All leaves have the same basic structure – leaf
blade, a midrib, an edge, veins and a petiole.
} The flat part of the leaf is called as leaf blade
} It has main vein also known as midrib,
} From midrib/ main vein side veins are arrived. Main
vein and side veins carry food, water and minerals
} Leaf is connected with stem with petiole

6. There are many small openings called
stomata present on underside of the leaf
Plants breathe through this stomata.

7. 1. It prepares food for the plant in the
presence of chlorophyll using sunlight,
water and carbon dioxide
2. So, Leaf is called the food factory of plant
3. It helps the plant to breathe through
stomata
4. Some plants also stores the food prepared
by the plant

9. } Different types of fruits, vegetables, grains,
lentils, spices, nuts, cotton, wood, rubber,
medicines etc.
} Apart from food oxygen also given out by
plant which is used by animals for respiration