Question

explain main four function of leaf​

Answer 1

Answer:

1: Photosynthesis :

The process of producing food, known as Photosynthesis, mainly occurs in the leaves of most angiosperms. This process essentially involves the absorption of light mainly by the chlorophyll pigments and the absorption of carbon dioxide via the stomatal pores in the leaves. As a result of the cleavage of the water molecule during photosynthesis, oxygen is generated and released to the atmosphere.

2. Interchange of Gases:

Leaves have numerous tiny openings called stomata. Through these minute pores exchange of oxygen and carbon dioxide occurs during photosynthesis and respiration. During photosynthesis, carbon dioxide enters the leaves and oxygen is given out while during respiration, oxygen enters the leaves and carbon dioxide is given out.

3. Evaporation of Water:

The excess water present in the plant evaporates through stomata on the leaves. This process is called transpiration.

4. Floral induction:

The plant leaves synthesize and translocate the flower-inducing hormone called florigen to the buds.

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Answer 2

ʜᴏʟᴀ ᴍᴀᴛᴇ !

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Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close. They regulate carbon dioxide, oxygen, and water vapour exchange with the atmosphere.