A venter is a part of archegonium. They may also have a stalk. The neck contains neck canal cells and is capped by four cover cells. The venter contains a ventral canal cell and an egg. The sterile jacket has a cap cell, which disintegrates when turgor pressure rises (when surrounded by rain water).
BHU PMT (Mains)-2005
Plant kingdom
259446
The dominant generation in pteridophytes is
1 sporophytic
2 gametophytic
3 zygotic
4 None of these
Explanation:
In pteridophytes, dominant free-living generation is diploid sporophytic generation. They are generally herbaceous and rarely woody. Sporophyte is differentiated into true roots, stem and leaves. The sporophyte develop from the zygote which is formed by the fusion of haploid male gamete with the haploid female gamete.
UP CPMT-2012
Plant kingdom
259447
The bladder serving as floats and for trapping insects is found in
1 Zizyphus
2 Utricularia
3 Nephenthes
4 Acacia
Explanation:
Ultricularia is also known as the bladderwort, which is subrmerged aquatic insectivorous plant. Its rootless, floating stem bears highly dissected leaves. A portion of leaf is modified into sac-like bladders of about $1.3 \mathrm{~mm}$ in diameter. Each bladder is guarded by small valve, which opens inwardly. The bladder help in trapping prey and water.
Prothallus of pteridophytes is inconspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte. The magagametophytes (prothallus) produces the male sex organs called antheridia and female sex organs called archegonia.
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Plant kingdom
259445
A venter is a part of :
1 sporophyte
2 sporangium
3 antheridium
4 venter
Explanation:
A venter is a part of archegonium. They may also have a stalk. The neck contains neck canal cells and is capped by four cover cells. The venter contains a ventral canal cell and an egg. The sterile jacket has a cap cell, which disintegrates when turgor pressure rises (when surrounded by rain water).
BHU PMT (Mains)-2005
Plant kingdom
259446
The dominant generation in pteridophytes is
1 sporophytic
2 gametophytic
3 zygotic
4 None of these
Explanation:
In pteridophytes, dominant free-living generation is diploid sporophytic generation. They are generally herbaceous and rarely woody. Sporophyte is differentiated into true roots, stem and leaves. The sporophyte develop from the zygote which is formed by the fusion of haploid male gamete with the haploid female gamete.
UP CPMT-2012
Plant kingdom
259447
The bladder serving as floats and for trapping insects is found in
1 Zizyphus
2 Utricularia
3 Nephenthes
4 Acacia
Explanation:
Ultricularia is also known as the bladderwort, which is subrmerged aquatic insectivorous plant. Its rootless, floating stem bears highly dissected leaves. A portion of leaf is modified into sac-like bladders of about $1.3 \mathrm{~mm}$ in diameter. Each bladder is guarded by small valve, which opens inwardly. The bladder help in trapping prey and water.
Prothallus of pteridophytes is inconspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte. The magagametophytes (prothallus) produces the male sex organs called antheridia and female sex organs called archegonia.
A venter is a part of archegonium. They may also have a stalk. The neck contains neck canal cells and is capped by four cover cells. The venter contains a ventral canal cell and an egg. The sterile jacket has a cap cell, which disintegrates when turgor pressure rises (when surrounded by rain water).
BHU PMT (Mains)-2005
Plant kingdom
259446
The dominant generation in pteridophytes is
1 sporophytic
2 gametophytic
3 zygotic
4 None of these
Explanation:
In pteridophytes, dominant free-living generation is diploid sporophytic generation. They are generally herbaceous and rarely woody. Sporophyte is differentiated into true roots, stem and leaves. The sporophyte develop from the zygote which is formed by the fusion of haploid male gamete with the haploid female gamete.
UP CPMT-2012
Plant kingdom
259447
The bladder serving as floats and for trapping insects is found in
1 Zizyphus
2 Utricularia
3 Nephenthes
4 Acacia
Explanation:
Ultricularia is also known as the bladderwort, which is subrmerged aquatic insectivorous plant. Its rootless, floating stem bears highly dissected leaves. A portion of leaf is modified into sac-like bladders of about $1.3 \mathrm{~mm}$ in diameter. Each bladder is guarded by small valve, which opens inwardly. The bladder help in trapping prey and water.
Prothallus of pteridophytes is inconspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte. The magagametophytes (prothallus) produces the male sex organs called antheridia and female sex organs called archegonia.
A venter is a part of archegonium. They may also have a stalk. The neck contains neck canal cells and is capped by four cover cells. The venter contains a ventral canal cell and an egg. The sterile jacket has a cap cell, which disintegrates when turgor pressure rises (when surrounded by rain water).
BHU PMT (Mains)-2005
Plant kingdom
259446
The dominant generation in pteridophytes is
1 sporophytic
2 gametophytic
3 zygotic
4 None of these
Explanation:
In pteridophytes, dominant free-living generation is diploid sporophytic generation. They are generally herbaceous and rarely woody. Sporophyte is differentiated into true roots, stem and leaves. The sporophyte develop from the zygote which is formed by the fusion of haploid male gamete with the haploid female gamete.
UP CPMT-2012
Plant kingdom
259447
The bladder serving as floats and for trapping insects is found in
1 Zizyphus
2 Utricularia
3 Nephenthes
4 Acacia
Explanation:
Ultricularia is also known as the bladderwort, which is subrmerged aquatic insectivorous plant. Its rootless, floating stem bears highly dissected leaves. A portion of leaf is modified into sac-like bladders of about $1.3 \mathrm{~mm}$ in diameter. Each bladder is guarded by small valve, which opens inwardly. The bladder help in trapping prey and water.
Prothallus of pteridophytes is inconspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte. The magagametophytes (prothallus) produces the male sex organs called antheridia and female sex organs called archegonia.