In bryophytes and pteridophytes, transport of male gametes requires [2016]a)Windb)Insectsc)Birdsd)WaterCorrect answer is option 'D'. Can you explain this answer?

Question

In bryophytes and pteridophytes, transport of male gametes requires     [2016]a)Windb)Insectsc)Birdsd)WaterCorrect answer is option 'D'. Can you explain this answer?

Answer

In several primitive simple plants-like algae, bryophytes and pteridophytes water is the medium through which male gametes are transferred to the female reproductive organ or gamete to bring about fertilisation

Answer

In bryophyte male gamete is not motile hence it requires water for transportation

Answer

Because they are dependent on water for most of their activities including the reproduction

Answer

Water

Answer

Water ,because their sperms have flagella, this is to be mentioned that because of this reason the growth of bryophyte and pteridophytes is confined to particular areas.

Answer

Water  is the answer because as both require the water for fertilization and male gamete are motile here

Answer

Transport of male gametes in bryophytes and pteridophytes requires water.

Explanation:
1. Introduction:
Bryophytes and pteridophytes are groups of plants that do not have true vascular tissues. They are considered to be lower plants and rely on water for various physiological processes, including the transport of male gametes.

2. Gamete Production:
In bryophytes and pteridophytes, male gametes are produced in specialized structures called antheridia. These structures are typically found on the gametophyte generation of the plant.

3. Release of Male Gametes:
When the male gametes, called sperm cells, are mature, they need to be released from the antheridia. This release is often facilitated by the presence of water.

4. Water as a Medium:
In bryophytes and pteridophytes, the male gametes are flagellated, meaning they have whip-like appendages called flagella that allow them to swim. However, these flagella are only functional in a watery environment.

5. Water as a Transport Medium:
To ensure the successful transport of male gametes to the female reproductive structures, water is required. The male gametes move through a film of water, such as rainwater, dew, or moisture on the surface of the plant, to reach the female gametes.

6. Fertilization Process:
Once the male gametes reach the female reproductive structures, they fertilize the female gametes to form a zygote. This zygote develops into the sporophyte generation of the plant, which eventually produces spores.

7. Importance of Water:
Water is crucial for the reproductive success of bryophytes and pteridophytes. It serves as a medium for the transport of male gametes, allowing them to reach the female gametes for fertilization.

8. Comparison with Other Plants:
In higher plants, such as gymnosperms and angiosperms, the male gametes are transported by wind, insects, or birds. These plants have evolved mechanisms to ensure successful pollination and fertilization without relying solely on water.

In conclusion, in bryophytes and pteridophytes, the transport of male gametes requires water. The male gametes are flagellated and need a watery environment to move towards the female reproductive structures for fertilization. This reliance on water is due to the absence of true vascular tissues in these lower plants.

Answer

Water .because male gamete can be motile only in water.so bryophytes need water for ferrilisation and are called amphibians of plant kingdom

Similar NEET Doubts

In bryophytes and pteridophytes transport of male gametes requires? a. wind b. insect .c. birds d. water.

In bryophytes and pteridophytes transport of male gametes requires? a. wind b. insect .c. birds d. water

How do bryophytes differ from pteridophytes?

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