Sex organ in bryophytes are :–a)Unicellular and jacketedb)Unicellular and non-jacketedc)Multicellular and jacketedd)Multicellular and non jacketedCorrect answer is option 'C'. Can you explain this answer?

Question

Sex organ in bryophytes are :&#8211;a)Unicellular and jacketedb)Unicellular and non-jacketedc)Multicellular and jacketedd)Multicellular and non jacketedCorrect answer is option 'C'. Can you explain this answer?

Answer

Multicellular given in ncert.. Jacketedsex organ means their sex organs were covered by sterile cells...

Answer

The sex organs in bryophytes are multicellular and jacketed and called antheridia (male sex organs) and archegonia (female sex organs). An antheridia produces a number of biflagellated male gametes called sperms or antherozoids. An archegonium is a flask shaped with tubular neck and swollen venter containing a female gamete called egg or oosphere. They are jacketed and multicellular.
Hence the correct option is C

Answer

Sex organ in bryophytes are Multicellular and jacketed.

Explanation:
Bryophytes are a group of non-vascular plants that include mosses, liverworts, and hornworts. These plants have a simple body structure and lack specialized tissues for conducting water and nutrients. The reproductive structures in bryophytes are multicellular and jacketed.

1. Reproductive Structures in Bryophytes:
Bryophytes have separate male and female reproductive structures called gametophytes. The male gametophyte produces sperm, while the female gametophyte produces eggs. These structures are multicellular and are enclosed within protective jackets.

2. Male Reproductive Organ - Antheridium:
The male reproductive organ in bryophytes is called the antheridium. It is responsible for producing and releasing sperm cells. The antheridium consists of a multicellular jacket that encloses the sperm-producing cells. The jacket protects the developing sperm cells and aids in their dispersal.

3. Female Reproductive Organ - Archegonium:
The female reproductive organ in bryophytes is called the archegonium. It is responsible for producing and housing the eggs. The archegonium also consists of a multicellular jacket that encloses the egg. The jacket protects the developing egg and aids in its fertilization.

4. Function of the Jackets:
The jackets surrounding the reproductive structures in bryophytes serve several functions:
- Protection: The jackets protect the reproductive cells from desiccation, physical damage, and predation.
- Nutrient Absorption: The jackets facilitate the absorption of nutrients from the surrounding environment, which are essential for the development and maturation of the reproductive cells.
- Dispersal: The jackets aid in the dispersal of reproductive cells. They may have specialized structures or mechanisms for releasing the reproductive cells into the environment, increasing the chances of successful fertilization.

In conclusion, the sex organs in bryophytes are multicellular and jacketed. The multicellular jackets serve various functions such as protection, nutrient absorption, and dispersal.

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