Video Transcript
The image shows a closed anther of
a hibiscus flower on the left side and an open anther on the right side. What is the anther on the right
releasing? (A) Mature pollen grains, (B)
immature pollen grains, (C) ovules ready to be fertilized, or (D) molecules with a
specific odor to attract pollinators.
Anthers are the male reproductive
organs of flowering plants, responsible for producing pollen. Pollen grains contain the male
gametes of flowering plants. For one of these male gametes to
successfully fertilize a female gamete, first pollen needs to be released from one
of the anthers. When pollen grains have finished
developing, the anther splits lengthwise and the mature pollen bursts out.
In the image provided by the
question, we can see two anthers: a closed anther on the left and an open anther on
the right. The anther will only split open
once the pollen grains it produces are mature. This means that we have found the
correct answer to this question. As we know that the pollen grains
must mature before they burst out of the anther, the anther on the right must be
releasing (A), mature pollen grains.
