Since the part of the leaf which was covered and hidden from sunlight does not contain starch and the part of the leaf which was exposed to sunlight contains starch. Therefore,
Test your understanding
1. The process, by which green plants make their own food from _______and __________________ by using sunlight energy in the presence of chlorophyll, is called _______.
2. _______ is essential element used by the plants to make proteins and other compound.
3.__________________ is released during photosynthesis.
4.The green plants convert sunlight energy into __________________ by making carbohydrates.
5.__________________ gives a blue black color with iodine solution.
6.Plants absorb $CO_2$ through a large number of tiny pores called _____ on the Surface of the leaves of plants.
7. The water required by the plants for photosynthesis is absorbed by the root of the plants from the soil through the process of _______.
8.The plants also require other raw materials such as ________, __________________,_____ and _____, etc., for building their body and these are obtained from Soil.
9. The water absorbed by the roots of the plants is transported upward through the __________________ vessels to the leaves where it reaches the photosynthetic cells.
10. Leaves have green pigment called ________.
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1.carbon dioxide, water,photosynthesis
2. Nitrogen
3. Oxygen
4. chemical energy
5. Starch
6. stomata
7. osmosis
8. nitrogen,phosphorus ,iron, magnesium
9. xylem
10. chlorophyll