Question

10. Draw and level the external structure of leaf?

Answer 1

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Draw and label the external structure of leaf

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( Refer to the attachment)

The external structure of leaf :-

• Petiole: Petiole is also known as leaf stalk . Petiole is the thin stalk that attaches the leaf to the main stem or branch

• Lamina : Lamina is also known as leaf blade. It is the large broad green surface of the leaf. It gives a large surface for light absorption

• Midrib: Midrib is also known as main vein of the leaf It is the large central thick vein of the leaf that runs through the leaf blade from its base to its apex.

• Leaf margin: Leaf margin is also known as leaf edges. Leaf margins are thin which reduce the distance of diffusion of gases between the atmosphere and innermost leaf cells.

• Leaf apex: Leaf apex is also known as leaf tip.It is the terminal part of the leaf

• Veins: Leaf veins branch from the midrib of the leaf. Leaf veins contain vascular tissue of the leaf (xylem and phloem)

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Answer 2

Answer:

Explanation:

this is the drawing of the external structure of leaf

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The external structure of leaf :-

Petiole: Petiole is also known as leaf stalk . Petiole is the thin stalk that attaches the leaf to the main stem or branch

Petiole is the thin stalk that attaches the leaf to the main stem or branchLamina : Lamina is also known as leaf blade. It is the large broad green surface of the leaf. It gives a large surface for light absorption

It gives a large surface for light absorptionMidrib: Midrib is also known as main vein of the leaf It is the large central thick vein of the leaf that runs through the leaf blade from its base to its apex.

It is the large central thick vein of the leaf that runs through the leaf blade from its base to its apex.Leaf margin: Leaf margin is also known as leaf edges. Leaf margins are thin which reduce the distance of diffusion of gases between the atmosphere and innermost leaf cells.

Leaf margins are thin which reduce the distance of diffusion of gases between the atmosphere and innermost leaf cells.Leaf apex: Leaf apex is also known as leaf tip.It is the terminal part of the leaf

Leaf margins are thin which reduce the distance of diffusion of gases between the atmosphere and innermost leaf cells.Leaf apex: Leaf apex is also known as leaf tip.It is the terminal part of the leafVeins: Leaf veins branch from the midrib of the leaf. Leaf veins contain vascular tissue of the leaf (xylem and phloem)