Antera

The video explains the structure and function of pollen sacs, which produce pollen grains. When mature, these sacs open to release pollen. Pollination occurs as insects transfer pollen from the anthers to the stigma while foraging for food in flowers.

What is the primary function of the four sacs mentioned in the video?

• To attract insects

• To produce pollen grains

• To store nectar

• To protect the flower

At what stage do the sacs open to release pollen?

• When insects are nearby

• At the beginning of the day

• When the sacs are mature

• During the flowering stage

How is pollination primarily achieved according to the video?

• Through wind

• By water

• With the help of insects

• By manual intervention

What role do insects play in the pollination process?

• They consume the pollen

• They transfer pollen from anthers to stigmas

• They protect the flowers

• They fertilize the seeds

Where does the pollen go after being transferred by insects?

• To the stem

• To a stigma

• To the leaves

• To the roots