The leaf is a flattened, lateral outgrowth of the stem in the branch, developing from a node and having a bud in its axil. It is normally green in colour and manufactures food for the whole plant. The leaves take up water and carbon dioxide and convert them into carbohydrates in the presence of sunlight and chlorophyll
Parts of a Leaf:
A typical leaf of Ficus religiosa (pipal) has a broad thin, flat structure called the lamina. The thin stalk below the lamina is the petiole. The lamina possesses a network of veins. The veins have both xylem and phloem elements which are continuous with similar tissues of the stem through those of the petiole.
A strong vein, known as the midrib, runs centrally through the leaf- blade from its base to the apex; this produces thinner lateral veins which in their turn give rise to still thinner veins or veinlets. The lamina is the most important part of the leaf since this is the seat of food manufacture for the whole plant.
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Answer:
Definition of a Leaf
The leaf is a flattened, lateral outgrowth of the stem in the branch, developing from a node and having a bud in its axil. It is normally green in colour and manufactures food for the whole plant. The leaves take up water and carbon dioxide and convert them into carbohydrates in the presence of sunlight and chlorophyll
Parts of a Leaf:
A typical leaf of Ficus religiosa (pipal) has a broad thin, flat structure called the lamina. The thin stalk below the lamina is the petiole. The lamina possesses a network of veins. The veins have both xylem and phloem elements which are continuous with similar tissues of the stem through those of the petiole.
A strong vein, known as the midrib, runs centrally through the leaf- blade from its base to the apex; this produces thinner lateral veins which in their turn give rise to still thinner veins or veinlets. The lamina is the most important part of the leaf since this is the seat of food manufacture for the whole plant.
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