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What else can I help you with?
Why do pollen grain only produce tubes in flowers of their species?
because they dony like other species
Where do pollen tubes develop to transport the male sperm cells to the female egg cells in the ovary?
In the style
Why do pollen grains only produce tubes in flowers of their own kind?
because they dony like other species
What is the function of the pollen tubes?
it sucks
Why do flowers develope shapes built around deep tubes?
So that pollinators with long mouth-parts can collect nectar from the flower and also pick up pollen.
Do all pollen tubes reach the ovule?
No, not all pollen tubes reach the ovule. After pollination, multiple pollen tubes may grow down the style, but typically only one successfully penetrates the ovule to deliver sperm cells for fertilization. The competition among pollen tubes ensures that the most viable one reaches the ovule, while others may abort or be blocked along the way.
Does pollen tube grow before or after pollination occurs?
Pollen tube growth occurs after pollination. Pollen grains are deposited on the stigma during pollination, which then germinate to produce pollen tubes. These tubes grow down through the style to reach the ovule for fertilization.
What are the steps of pollination to the point that the seed is formed?
-pollen sticks to the stigma at the end of the pistil -pollen tubes grow down the pistil to the egg cells -sperm cells from the pollen moves down the tubes -fertilization combines DNA
What is the function of the pollen tube?
The pollen tube of most seed plants acts as a conduit to transport sperm cells from the pollen grain, either from the stigma (in flowering plants or angiosperms) to the ovules at the base of the pistil, or directly through ovule tissue in some gymnosperms (conifers and gnetophytes).
Do bumble bees like flowers?
Bumblebees also pollinate wildflowers. Bumblebees are attracted to flowers with narrow corolla tubes, such as blueberries and cranberries. They mainly forage for pollen rather than nectar and transfer more pollen to the pistils with each visit.
How do two plants fertilize?
By sending their male gametes to the female gametes through their pollen tubes after germination of pollen grains.
On a flower what moves down to the ovary?
The male gametes in the pollen tubes.
