Oblique septa in rhizoids are characteristic of :-a)Liverwortsb)Hornwortsc)Mossesd)FernsCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

The multicellular rhizoids having oblique septa are present in funeria which belongs to mosses...

Answer

Mosses show an advance on some liverworts in that the plant body is differentiated into simple stems and leaves, though it has no roots, rhizoids still being present, but these are multicellular and have oblique septa.
Liverworts and hornworts have dorsiventrally flattened lobed plant body, with unicellular rhizoids.

Answer

Rhizoids are root-like structures that are found in non-vascular plants such as mosses, liverworts, and hornworts. They help in anchoring the plant to the substrate and also aid in the absorption of water and nutrients.

One distinguishing feature of rhizoids in mosses is the presence of oblique septa. Oblique septa are transverse walls that are at an angle to the long axis of the rhizoid. These walls divide the rhizoid into several compartments or cells.

Why Rhizoids have Oblique Septa in Mosses:

1. Structural Support:
- The oblique septa in moss rhizoids provide structural support to the plant.
- The presence of these septa increases the rigidity and strength of the rhizoids.
- This is important for anchoring the moss to the substrate and preventing it from being dislodged by wind or water currents.

2. Enhanced Absorption:
- The oblique septa increase the surface area of the rhizoid cells.
- This increased surface area allows for a larger contact area with the substrate, enhancing the absorption of water and nutrients.
- The absorption of water and nutrients is crucial for the survival and growth of the moss.

3. Nutrient Exchange:
- The oblique septa also play a role in nutrient exchange between different cells of the rhizoid.
- They allow for the movement of substances such as water, ions, and organic molecules between adjacent cells.
- This facilitates the transport of nutrients from the substrate to other parts of the plant.

4. Cell-to-Cell Communication:
- The presence of oblique septa enables cell-to-cell communication within the rhizoid.
- This communication is important for coordinating various physiological processes in the rhizoid cells.
- It allows for the regulation of water uptake, nutrient absorption, and other metabolic activities.

In conclusion, oblique septa in rhizoids are a characteristic feature of mosses. These septa provide structural support, enhance absorption, facilitate nutrient exchange, and enable cell-to-cell communication in the rhizoid cells.

Similar NEET Doubts

Oblique septa are found in which part of moss

in liverworts ,mosses,and ferns gametophytes are free living or not???

Which of the following statements is incorrect?

Funaria is fixed to substratum by

What is the main difference between mosses and liverworts?

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