Oblique septa are found in which part of moss :-a)Rhizoids of sporophyteb)Rhizoids of gametophytec)Leavesd)StemCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

The gametophytic plant body of mosses are differentiated into prostate, branched filamentous, thalloid protonema and leafy erect gametophore.
Rhizoids are multicellular branched with oblique septa.
the ans has to be op B.

Answer

The gametophytic plant body of mosses are differentiated into prostate, branched filamentous, thalloid protonema and leafy erect gametophore.
Rhizoids are multicellular branched with oblique septa.
Sex organs develop from superficial cells at the apex of leafy gametophyte.
Stomata and chlorophyll are present in gametphyte for gaseous exchange, e.g., Funaria

Answer

B) Rhizoids of gametophyte

Rhizoids are thread-like structures that are found in non-vascular plants like mosses. They are analogous to roots in vascular plants, but they do not have the same complexity or functions as roots.

Oblique septa are specialized structures found in the rhizoids of the gametophyte generation of mosses. They are horizontal partitions that divide the rhizoid into compartments or cells. These septa are obliquely oriented, meaning they are slanted or diagonal in position.

The presence of oblique septa in the rhizoids of mosses serves several important functions.

1. Structural Support:
- The oblique septa provide structural support to the rhizoids, helping them anchor the moss to the substrate.
- They prevent the rhizoids from collapsing or bending under the weight of the plant.

2. Water and Nutrient Absorption:
- The oblique septa increase the surface area of the rhizoids, allowing for greater absorption of water and nutrients from the surrounding environment.
- The compartments created by the septa also help to regulate the flow of water and nutrients through the rhizoids.

3. Protection:
- The oblique septa act as barriers, separating the cytoplasm and organelles within each cell of the rhizoid.
- This compartmentalization helps protect the cells from damage or infection, as any damage or infection is contained within a single cell and does not spread to neighboring cells.

Overall, oblique septa in the rhizoids of the gametophyte generation of mosses are essential for providing structural support, enhancing water and nutrient absorption, and protecting the cells from damage. They contribute to the overall survival and functioning of the moss plant.

Answer

The gametophytic plant body of mosses are differentiated into prostate, branched filamentous, thalloid protonema and leafy erect gametophore.
Rhizoids are multicellular branched with oblique septa.

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