Question

1.
The yellowish sac-like, bi-lobed structure
on the filament​

Answer 1

Answer:

Pollen grain of the flower

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Answer 2

The yellowish sac-like, bi-lobed structure on the filament​ is called an anther.

• Anthers consist of two lobes.
• They are present terminally on filament
• It is an integrated part of the male reproductive whorl named androecium of flowers.

• A band of sterile and vasculature tissue is present between two lobes, known as connective. It connects two lobes.

• 4 microsporangia are present with 2 on each lobe.
• Pollen sacs are the ultimate production of microsporangium which again consists of pollen grains.

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