259394
Which type of rhizoids are present in riccia?
1 Unicellular smooth
2 Multicellular smooth
3 Unicellular smooth and tuberculated
4 Multicellular smooth and tuberculated
Explanation:
In Riccia, rhizoids are unicellular and unbranched structure. Rhizoids are a filamentous outgrowth similar to root hairs in structure. They anchor the thallus to the substratum and are usually of two types: smooth walled and tuberculated. Tuberculated rhizoids help in anchorage and absorption. Rhizoids are present in the mid-rib region of the thallus.
Rajasthan PMT-2006
Plant kingdom
259360
Bryophytes resemble algae in the following aspects:
1 Differentiation of plant body into root, stem and leaves and autotrophic
2 Thallus like plant body, presence of roots and autotrophic nutrition
3 Thallus like plant body, lack of vascular tissues and autotrophic nutrition.
4 Filamentous body, presence of vascular tissues and autotrophic nutrition
Explanation:
Bryophytes resemble algae in the aspects of thallus such as plant body, lack of vascular tissues and autotrophic nutrition. They are non flowering plants and do not produce flower and seeds.
Karnataka CET-2009 / Manipal - 2009
Plant kingdom
259338
Vegetative reproduction in Funaria takes place by
1 primary protonema
2 gemmae
3 secondary protonema
4 All of the above
Explanation:
Vegetative reproduction is a type of asexual reproduction. Vegetative propagation in mosses is by fragmentation, gemmae formation, and budding in secondary protonema. Funaria is a example of mosses.
UP CPMT-2011
Plant kingdom
259387
The brown hairs present at the base of the petiole of Pteris are called:
1 setae
2 ramenta
3 spines
4 stipules
Explanation:
The brown hair present at the base of the petiole of Pteris are known as ramenta. The epidermal cells gives rise to this uniseriate bicellular brown hairs on young leaves of the Pteris or on any fern. Ramenta provides Pteris with protection from external injuries.
259394
Which type of rhizoids are present in riccia?
1 Unicellular smooth
2 Multicellular smooth
3 Unicellular smooth and tuberculated
4 Multicellular smooth and tuberculated
Explanation:
In Riccia, rhizoids are unicellular and unbranched structure. Rhizoids are a filamentous outgrowth similar to root hairs in structure. They anchor the thallus to the substratum and are usually of two types: smooth walled and tuberculated. Tuberculated rhizoids help in anchorage and absorption. Rhizoids are present in the mid-rib region of the thallus.
Rajasthan PMT-2006
Plant kingdom
259360
Bryophytes resemble algae in the following aspects:
1 Differentiation of plant body into root, stem and leaves and autotrophic
2 Thallus like plant body, presence of roots and autotrophic nutrition
3 Thallus like plant body, lack of vascular tissues and autotrophic nutrition.
4 Filamentous body, presence of vascular tissues and autotrophic nutrition
Explanation:
Bryophytes resemble algae in the aspects of thallus such as plant body, lack of vascular tissues and autotrophic nutrition. They are non flowering plants and do not produce flower and seeds.
Karnataka CET-2009 / Manipal - 2009
Plant kingdom
259338
Vegetative reproduction in Funaria takes place by
1 primary protonema
2 gemmae
3 secondary protonema
4 All of the above
Explanation:
Vegetative reproduction is a type of asexual reproduction. Vegetative propagation in mosses is by fragmentation, gemmae formation, and budding in secondary protonema. Funaria is a example of mosses.
UP CPMT-2011
Plant kingdom
259387
The brown hairs present at the base of the petiole of Pteris are called:
1 setae
2 ramenta
3 spines
4 stipules
Explanation:
The brown hair present at the base of the petiole of Pteris are known as ramenta. The epidermal cells gives rise to this uniseriate bicellular brown hairs on young leaves of the Pteris or on any fern. Ramenta provides Pteris with protection from external injuries.
259394
Which type of rhizoids are present in riccia?
1 Unicellular smooth
2 Multicellular smooth
3 Unicellular smooth and tuberculated
4 Multicellular smooth and tuberculated
Explanation:
In Riccia, rhizoids are unicellular and unbranched structure. Rhizoids are a filamentous outgrowth similar to root hairs in structure. They anchor the thallus to the substratum and are usually of two types: smooth walled and tuberculated. Tuberculated rhizoids help in anchorage and absorption. Rhizoids are present in the mid-rib region of the thallus.
Rajasthan PMT-2006
Plant kingdom
259360
Bryophytes resemble algae in the following aspects:
1 Differentiation of plant body into root, stem and leaves and autotrophic
2 Thallus like plant body, presence of roots and autotrophic nutrition
3 Thallus like plant body, lack of vascular tissues and autotrophic nutrition.
4 Filamentous body, presence of vascular tissues and autotrophic nutrition
Explanation:
Bryophytes resemble algae in the aspects of thallus such as plant body, lack of vascular tissues and autotrophic nutrition. They are non flowering plants and do not produce flower and seeds.
Karnataka CET-2009 / Manipal - 2009
Plant kingdom
259338
Vegetative reproduction in Funaria takes place by
1 primary protonema
2 gemmae
3 secondary protonema
4 All of the above
Explanation:
Vegetative reproduction is a type of asexual reproduction. Vegetative propagation in mosses is by fragmentation, gemmae formation, and budding in secondary protonema. Funaria is a example of mosses.
UP CPMT-2011
Plant kingdom
259387
The brown hairs present at the base of the petiole of Pteris are called:
1 setae
2 ramenta
3 spines
4 stipules
Explanation:
The brown hair present at the base of the petiole of Pteris are known as ramenta. The epidermal cells gives rise to this uniseriate bicellular brown hairs on young leaves of the Pteris or on any fern. Ramenta provides Pteris with protection from external injuries.
259394
Which type of rhizoids are present in riccia?
1 Unicellular smooth
2 Multicellular smooth
3 Unicellular smooth and tuberculated
4 Multicellular smooth and tuberculated
Explanation:
In Riccia, rhizoids are unicellular and unbranched structure. Rhizoids are a filamentous outgrowth similar to root hairs in structure. They anchor the thallus to the substratum and are usually of two types: smooth walled and tuberculated. Tuberculated rhizoids help in anchorage and absorption. Rhizoids are present in the mid-rib region of the thallus.
Rajasthan PMT-2006
Plant kingdom
259360
Bryophytes resemble algae in the following aspects:
1 Differentiation of plant body into root, stem and leaves and autotrophic
2 Thallus like plant body, presence of roots and autotrophic nutrition
3 Thallus like plant body, lack of vascular tissues and autotrophic nutrition.
4 Filamentous body, presence of vascular tissues and autotrophic nutrition
Explanation:
Bryophytes resemble algae in the aspects of thallus such as plant body, lack of vascular tissues and autotrophic nutrition. They are non flowering plants and do not produce flower and seeds.
Karnataka CET-2009 / Manipal - 2009
Plant kingdom
259338
Vegetative reproduction in Funaria takes place by
1 primary protonema
2 gemmae
3 secondary protonema
4 All of the above
Explanation:
Vegetative reproduction is a type of asexual reproduction. Vegetative propagation in mosses is by fragmentation, gemmae formation, and budding in secondary protonema. Funaria is a example of mosses.
UP CPMT-2011
Plant kingdom
259387
The brown hairs present at the base of the petiole of Pteris are called:
1 setae
2 ramenta
3 spines
4 stipules
Explanation:
The brown hair present at the base of the petiole of Pteris are known as ramenta. The epidermal cells gives rise to this uniseriate bicellular brown hairs on young leaves of the Pteris or on any fern. Ramenta provides Pteris with protection from external injuries.
