Haploid brown, hairlike, delicate unicellular outgrowths are rhizoids of fern plants. The rhizoids are found in the gametophyte of fern but after an evolutionary change, they develop in the root hairs of vascular plants in their sporophytic stage.
AP EAMCET-2004
Plant kingdom
259483
Which one of the following pairs of plants are not seed producers?
1 Funaria and Ficus
2 Fern and Funaria
3 Funaria and Pinus
4 Ficus and Chlamydomonas
Explanation:
The seed producing plants belong to spermatophyta, i.e. angiosperms and gymnosperms. While, the bryophytes, thallophytes and pteridophytes lack these features and thus, they do not reproduce by producing seeds. Fern and Funaria do not bear flowers thus, they do not bear seeds. Fern and Funaria belongs to pteridophytes and bryophytes respectively. The spores functions like seeds which are produced in special structures called sporangia or special cup-shaped structures called sori.
JIPMER-2013
Plant kingdom
259484
Fern gametophyte bears:
1 archegonia
2 antheridia
3 sporangia
4 both (a) and (b)
Explanation:
The sex organs the antheridia and archegonia, are carried by the gametophyte of the fern or prothallus. So they referred to it as homothallic while archegonia are the female reproductive organs antheridia are the male sex organs.
JCECE-2005
Plant kingdom
267362
Fern plant is a
1 haploid gametophyte
2 diploid gametophyte
3 diploid sporophyte
4 haploid sporophyte
Explanation:
(c) Fusion of male gamete with the egg results in the formation of zygote. This zygote produces a multicellular well differentiated sporophyte which is the dominant phase of the pteridophytes.
Haploid brown, hairlike, delicate unicellular outgrowths are rhizoids of fern plants. The rhizoids are found in the gametophyte of fern but after an evolutionary change, they develop in the root hairs of vascular plants in their sporophytic stage.
AP EAMCET-2004
Plant kingdom
259483
Which one of the following pairs of plants are not seed producers?
1 Funaria and Ficus
2 Fern and Funaria
3 Funaria and Pinus
4 Ficus and Chlamydomonas
Explanation:
The seed producing plants belong to spermatophyta, i.e. angiosperms and gymnosperms. While, the bryophytes, thallophytes and pteridophytes lack these features and thus, they do not reproduce by producing seeds. Fern and Funaria do not bear flowers thus, they do not bear seeds. Fern and Funaria belongs to pteridophytes and bryophytes respectively. The spores functions like seeds which are produced in special structures called sporangia or special cup-shaped structures called sori.
JIPMER-2013
Plant kingdom
259484
Fern gametophyte bears:
1 archegonia
2 antheridia
3 sporangia
4 both (a) and (b)
Explanation:
The sex organs the antheridia and archegonia, are carried by the gametophyte of the fern or prothallus. So they referred to it as homothallic while archegonia are the female reproductive organs antheridia are the male sex organs.
JCECE-2005
Plant kingdom
267362
Fern plant is a
1 haploid gametophyte
2 diploid gametophyte
3 diploid sporophyte
4 haploid sporophyte
Explanation:
(c) Fusion of male gamete with the egg results in the formation of zygote. This zygote produces a multicellular well differentiated sporophyte which is the dominant phase of the pteridophytes.
Haploid brown, hairlike, delicate unicellular outgrowths are rhizoids of fern plants. The rhizoids are found in the gametophyte of fern but after an evolutionary change, they develop in the root hairs of vascular plants in their sporophytic stage.
AP EAMCET-2004
Plant kingdom
259483
Which one of the following pairs of plants are not seed producers?
1 Funaria and Ficus
2 Fern and Funaria
3 Funaria and Pinus
4 Ficus and Chlamydomonas
Explanation:
The seed producing plants belong to spermatophyta, i.e. angiosperms and gymnosperms. While, the bryophytes, thallophytes and pteridophytes lack these features and thus, they do not reproduce by producing seeds. Fern and Funaria do not bear flowers thus, they do not bear seeds. Fern and Funaria belongs to pteridophytes and bryophytes respectively. The spores functions like seeds which are produced in special structures called sporangia or special cup-shaped structures called sori.
JIPMER-2013
Plant kingdom
259484
Fern gametophyte bears:
1 archegonia
2 antheridia
3 sporangia
4 both (a) and (b)
Explanation:
The sex organs the antheridia and archegonia, are carried by the gametophyte of the fern or prothallus. So they referred to it as homothallic while archegonia are the female reproductive organs antheridia are the male sex organs.
JCECE-2005
Plant kingdom
267362
Fern plant is a
1 haploid gametophyte
2 diploid gametophyte
3 diploid sporophyte
4 haploid sporophyte
Explanation:
(c) Fusion of male gamete with the egg results in the formation of zygote. This zygote produces a multicellular well differentiated sporophyte which is the dominant phase of the pteridophytes.
Haploid brown, hairlike, delicate unicellular outgrowths are rhizoids of fern plants. The rhizoids are found in the gametophyte of fern but after an evolutionary change, they develop in the root hairs of vascular plants in their sporophytic stage.
AP EAMCET-2004
Plant kingdom
259483
Which one of the following pairs of plants are not seed producers?
1 Funaria and Ficus
2 Fern and Funaria
3 Funaria and Pinus
4 Ficus and Chlamydomonas
Explanation:
The seed producing plants belong to spermatophyta, i.e. angiosperms and gymnosperms. While, the bryophytes, thallophytes and pteridophytes lack these features and thus, they do not reproduce by producing seeds. Fern and Funaria do not bear flowers thus, they do not bear seeds. Fern and Funaria belongs to pteridophytes and bryophytes respectively. The spores functions like seeds which are produced in special structures called sporangia or special cup-shaped structures called sori.
JIPMER-2013
Plant kingdom
259484
Fern gametophyte bears:
1 archegonia
2 antheridia
3 sporangia
4 both (a) and (b)
Explanation:
The sex organs the antheridia and archegonia, are carried by the gametophyte of the fern or prothallus. So they referred to it as homothallic while archegonia are the female reproductive organs antheridia are the male sex organs.
JCECE-2005
Plant kingdom
267362
Fern plant is a
1 haploid gametophyte
2 diploid gametophyte
3 diploid sporophyte
4 haploid sporophyte
Explanation:
(c) Fusion of male gamete with the egg results in the formation of zygote. This zygote produces a multicellular well differentiated sporophyte which is the dominant phase of the pteridophytes.
