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What of the substances sucrose or water gives better formation of pollen tubes?
Answeri would think 20% sucrose solution
What of the substance sucrose or water causes the formation of pollen tube?
Sucrose acts as a source of energy for the growing pollen tube, providing the necessary fuel for its elongation. Water is crucial for maintaining turgor pressure within the pollen tube, which helps it to push through the pistil tissues during growth. Both substances play essential roles in the formation and elongation of pollen tubes.
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.
Why is there a need for pollen tubes?
Pollen tubes are necessary for the transportation of sperm cells to the ovule in plants for fertilization to occur. They provide a pathway through which the sperm cells can travel to reach the egg cell, enabling the process of sexual reproduction in plants.
What of the substances sucrose or water gives better formation of pollen tubes?
Answeri would think 20% sucrose solution
Which of the substance sucrose or water cause the better formation of pollen tube?
Sucrose is a better stimulant for pollen tube growth compared to water. Sucrose provides the energy and nutrients required for the growth and elongation of pollen tubes, whereas water alone does not provide the necessary nutrients for optimal pollen tube development.
What of the substance sucrose or water causes the formation of pollen tube?
Sucrose acts as a source of energy for the growing pollen tube, providing the necessary fuel for its elongation. Water is crucial for maintaining turgor pressure within the pollen tube, which helps it to push through the pistil tissues during growth. Both substances play essential roles in the formation and elongation of pollen tubes.
Loaded in if sucrose is actively loaded into sieve tube?
Yes, sucrose is actively loaded into sieve tubes by companion cells that pump sucrose from the photosynthetic cells into the sieve tubes. This process requires energy and allows for long-distance transport of sucrose through the phloem.
What is the function of the pollen tubes?
it sucks
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
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.
Which part of the flowers do pollen tubes start to develop?
On the stigma of the carpel
Are all pollen tube of equal length?
No, not all pollen tubes are of equal length. The length of a pollen tube can vary depending on several factors, including the species of the plant, environmental conditions, and the compatibility of the pollen with the ovule. Additionally, the growth rate of the pollen tube can be influenced by the availability of nutrients and water in the surrounding tissue. Thus, while some pollen tubes may be similar in length, there is considerable variation among them.
Why is there a need for pollen tubes?
Pollen tubes are necessary for the transportation of sperm cells to the ovule in plants for fertilization to occur. They provide a pathway through which the sperm cells can travel to reach the egg cell, enabling the process of sexual reproduction in plants.
