259563
In which one of the following, the male and female gametophytes don't have free-living independent existence?
1 Pteris
2 Funaria
3 Polytrichum
4 Cedrus
Explanation:
Cedrus belongs to the phylum gymnosperm. In this plant male and female gametophyte do not have an independent free living existence. Male gametophyte remain inside the microsporangium and female gametophyte remain inside the mega sporangium
JIPMER-2012
Plant kingdom
259564
Plant group with largest ovule, largest tree and largest gametes:
1 Gymnosperm
2 Angiosperm
3 Bryophyta
4 Pteridophyta
Explanation:
Gymnosperms is that plant group which is characterized by naked seed bearing vascular plants. In this group Cycas have largest ovule and largest antherozoite. Sequoia is the largest plant of plant kingdom which belongs to Gymnosperms
AIPMT-2000
Plant kingdom
259565
Gymnosperms are also called soft wood spermatophytes because they lack:
1 Thick-walled tracheids
2 Xylem fibres
3 Cambium
4 Phloem fibres
Explanation:
Gymnosperm are also called softwood spermatophytes because they lack Xylem fiber and thick walled tracheids. In Gymnosperm large amount of parenchymatous cells are present with secondary xylem tracheids.
AIPMT (Screening)-2012
Plant kingdom
259567
What is common in all the three, Funaria, Dryopteris and Gingko?
1 Independent sporophyte
2 Presence of archegonia
3 Well developed vascular tissues
4 Independent gametophyte
Explanation:
In Funaria, Dryopteris and Gingko all have the presence of archegonia i.e. female sex organ is common, and differences are seen in Dryopteris which lacks vascular bundle and have independent sporophyte while Gingko have independent gametophyte.
259563
In which one of the following, the male and female gametophytes don't have free-living independent existence?
1 Pteris
2 Funaria
3 Polytrichum
4 Cedrus
Explanation:
Cedrus belongs to the phylum gymnosperm. In this plant male and female gametophyte do not have an independent free living existence. Male gametophyte remain inside the microsporangium and female gametophyte remain inside the mega sporangium
JIPMER-2012
Plant kingdom
259564
Plant group with largest ovule, largest tree and largest gametes:
1 Gymnosperm
2 Angiosperm
3 Bryophyta
4 Pteridophyta
Explanation:
Gymnosperms is that plant group which is characterized by naked seed bearing vascular plants. In this group Cycas have largest ovule and largest antherozoite. Sequoia is the largest plant of plant kingdom which belongs to Gymnosperms
AIPMT-2000
Plant kingdom
259565
Gymnosperms are also called soft wood spermatophytes because they lack:
1 Thick-walled tracheids
2 Xylem fibres
3 Cambium
4 Phloem fibres
Explanation:
Gymnosperm are also called softwood spermatophytes because they lack Xylem fiber and thick walled tracheids. In Gymnosperm large amount of parenchymatous cells are present with secondary xylem tracheids.
AIPMT (Screening)-2012
Plant kingdom
259567
What is common in all the three, Funaria, Dryopteris and Gingko?
1 Independent sporophyte
2 Presence of archegonia
3 Well developed vascular tissues
4 Independent gametophyte
Explanation:
In Funaria, Dryopteris and Gingko all have the presence of archegonia i.e. female sex organ is common, and differences are seen in Dryopteris which lacks vascular bundle and have independent sporophyte while Gingko have independent gametophyte.
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Plant kingdom
259563
In which one of the following, the male and female gametophytes don't have free-living independent existence?
1 Pteris
2 Funaria
3 Polytrichum
4 Cedrus
Explanation:
Cedrus belongs to the phylum gymnosperm. In this plant male and female gametophyte do not have an independent free living existence. Male gametophyte remain inside the microsporangium and female gametophyte remain inside the mega sporangium
JIPMER-2012
Plant kingdom
259564
Plant group with largest ovule, largest tree and largest gametes:
1 Gymnosperm
2 Angiosperm
3 Bryophyta
4 Pteridophyta
Explanation:
Gymnosperms is that plant group which is characterized by naked seed bearing vascular plants. In this group Cycas have largest ovule and largest antherozoite. Sequoia is the largest plant of plant kingdom which belongs to Gymnosperms
AIPMT-2000
Plant kingdom
259565
Gymnosperms are also called soft wood spermatophytes because they lack:
1 Thick-walled tracheids
2 Xylem fibres
3 Cambium
4 Phloem fibres
Explanation:
Gymnosperm are also called softwood spermatophytes because they lack Xylem fiber and thick walled tracheids. In Gymnosperm large amount of parenchymatous cells are present with secondary xylem tracheids.
AIPMT (Screening)-2012
Plant kingdom
259567
What is common in all the three, Funaria, Dryopteris and Gingko?
1 Independent sporophyte
2 Presence of archegonia
3 Well developed vascular tissues
4 Independent gametophyte
Explanation:
In Funaria, Dryopteris and Gingko all have the presence of archegonia i.e. female sex organ is common, and differences are seen in Dryopteris which lacks vascular bundle and have independent sporophyte while Gingko have independent gametophyte.
259563
In which one of the following, the male and female gametophytes don't have free-living independent existence?
1 Pteris
2 Funaria
3 Polytrichum
4 Cedrus
Explanation:
Cedrus belongs to the phylum gymnosperm. In this plant male and female gametophyte do not have an independent free living existence. Male gametophyte remain inside the microsporangium and female gametophyte remain inside the mega sporangium
JIPMER-2012
Plant kingdom
259564
Plant group with largest ovule, largest tree and largest gametes:
1 Gymnosperm
2 Angiosperm
3 Bryophyta
4 Pteridophyta
Explanation:
Gymnosperms is that plant group which is characterized by naked seed bearing vascular plants. In this group Cycas have largest ovule and largest antherozoite. Sequoia is the largest plant of plant kingdom which belongs to Gymnosperms
AIPMT-2000
Plant kingdom
259565
Gymnosperms are also called soft wood spermatophytes because they lack:
1 Thick-walled tracheids
2 Xylem fibres
3 Cambium
4 Phloem fibres
Explanation:
Gymnosperm are also called softwood spermatophytes because they lack Xylem fiber and thick walled tracheids. In Gymnosperm large amount of parenchymatous cells are present with secondary xylem tracheids.
AIPMT (Screening)-2012
Plant kingdom
259567
What is common in all the three, Funaria, Dryopteris and Gingko?
1 Independent sporophyte
2 Presence of archegonia
3 Well developed vascular tissues
4 Independent gametophyte
Explanation:
In Funaria, Dryopteris and Gingko all have the presence of archegonia i.e. female sex organ is common, and differences are seen in Dryopteris which lacks vascular bundle and have independent sporophyte while Gingko have independent gametophyte.