332060
Match the columns I and II. Column I Column II A Coralloid roots P Symbiotic relationship B Mycorrhiza Q
Adiantum C Pteropsida R Cyanobacteria D Living fossil S
Ginkgo
1 A – R, B – P, C – Q, D – S
2 A – S, B – R, C – P, D – Q
3 A – P, B – R, C – Q, D – S
4 A – Q, B – P, C – R, D – S
Explanation:
A.Coralloid roots - R. Cyanobacteria B. Mycorrhiza - P. Symbiotic relationship C. Pteropsida - Q. Adiantum D. Living fossil - S. Ginkgo
BIOXI03: PLANT KINGDOM
332061
In which of the following groups do the male and female gametophytes have independent, free living existence?
1 Bryophytes and Gymnosperms
2 Bryophytes and Pteridophytes
3 Pteridophytes and Gymnosperms
4 Algae and Gymnosperms
Explanation:
Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. The male and female gametophytes remain within the microsporangium and megasporangium. The gametophytes are dependent on the sporophytes.
kcet - 2018
BIOXI03: PLANT KINGDOM
332062
Pinus, Cycas belongs to gymnosperms and not other phylum due to
1 Living fossil
2 Seed without fruit
3 Vessels present in xylem
4 Leaves structure
Explanation:
Cycas and Pinus bear seedless fruits. This is a characteristic feature of gymnosperms.
BIOXI03: PLANT KINGDOM
332063
Identify the gymnosperm having association with \({N_2}\) fixing bacteria
1 Pinus
2 Cycas
3 Sequoia
4 Cedrus
Explanation:
Cycas bears small specialised roots called coralloid roots that are associated with N2 - fixing cyanobacteria.
BIOXI03: PLANT KINGDOM
332064
In gymnosperms, the pollen chamber represents
1 A cavity in the ovule in which pollen grains are stored after pollination
2 An opening in the mega gametophyte through which the pollen approaches the egg
3 The megasporangium in which pollengrains develop
4 A cell in the pollen grain in which the sperms are formed.
Explanation:
In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination. Within this chamber, the generative cell divides to form two male gametes and the pollen cell starts elongating to form pollen tube.
332060
Match the columns I and II. Column I Column II A Coralloid roots P Symbiotic relationship B Mycorrhiza Q
Adiantum C Pteropsida R Cyanobacteria D Living fossil S
Ginkgo
1 A – R, B – P, C – Q, D – S
2 A – S, B – R, C – P, D – Q
3 A – P, B – R, C – Q, D – S
4 A – Q, B – P, C – R, D – S
Explanation:
A.Coralloid roots - R. Cyanobacteria B. Mycorrhiza - P. Symbiotic relationship C. Pteropsida - Q. Adiantum D. Living fossil - S. Ginkgo
BIOXI03: PLANT KINGDOM
332061
In which of the following groups do the male and female gametophytes have independent, free living existence?
1 Bryophytes and Gymnosperms
2 Bryophytes and Pteridophytes
3 Pteridophytes and Gymnosperms
4 Algae and Gymnosperms
Explanation:
Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. The male and female gametophytes remain within the microsporangium and megasporangium. The gametophytes are dependent on the sporophytes.
kcet - 2018
BIOXI03: PLANT KINGDOM
332062
Pinus, Cycas belongs to gymnosperms and not other phylum due to
1 Living fossil
2 Seed without fruit
3 Vessels present in xylem
4 Leaves structure
Explanation:
Cycas and Pinus bear seedless fruits. This is a characteristic feature of gymnosperms.
BIOXI03: PLANT KINGDOM
332063
Identify the gymnosperm having association with \({N_2}\) fixing bacteria
1 Pinus
2 Cycas
3 Sequoia
4 Cedrus
Explanation:
Cycas bears small specialised roots called coralloid roots that are associated with N2 - fixing cyanobacteria.
BIOXI03: PLANT KINGDOM
332064
In gymnosperms, the pollen chamber represents
1 A cavity in the ovule in which pollen grains are stored after pollination
2 An opening in the mega gametophyte through which the pollen approaches the egg
3 The megasporangium in which pollengrains develop
4 A cell in the pollen grain in which the sperms are formed.
Explanation:
In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination. Within this chamber, the generative cell divides to form two male gametes and the pollen cell starts elongating to form pollen tube.
332060
Match the columns I and II. Column I Column II A Coralloid roots P Symbiotic relationship B Mycorrhiza Q
Adiantum C Pteropsida R Cyanobacteria D Living fossil S
Ginkgo
1 A – R, B – P, C – Q, D – S
2 A – S, B – R, C – P, D – Q
3 A – P, B – R, C – Q, D – S
4 A – Q, B – P, C – R, D – S
Explanation:
A.Coralloid roots - R. Cyanobacteria B. Mycorrhiza - P. Symbiotic relationship C. Pteropsida - Q. Adiantum D. Living fossil - S. Ginkgo
BIOXI03: PLANT KINGDOM
332061
In which of the following groups do the male and female gametophytes have independent, free living existence?
1 Bryophytes and Gymnosperms
2 Bryophytes and Pteridophytes
3 Pteridophytes and Gymnosperms
4 Algae and Gymnosperms
Explanation:
Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. The male and female gametophytes remain within the microsporangium and megasporangium. The gametophytes are dependent on the sporophytes.
kcet - 2018
BIOXI03: PLANT KINGDOM
332062
Pinus, Cycas belongs to gymnosperms and not other phylum due to
1 Living fossil
2 Seed without fruit
3 Vessels present in xylem
4 Leaves structure
Explanation:
Cycas and Pinus bear seedless fruits. This is a characteristic feature of gymnosperms.
BIOXI03: PLANT KINGDOM
332063
Identify the gymnosperm having association with \({N_2}\) fixing bacteria
1 Pinus
2 Cycas
3 Sequoia
4 Cedrus
Explanation:
Cycas bears small specialised roots called coralloid roots that are associated with N2 - fixing cyanobacteria.
BIOXI03: PLANT KINGDOM
332064
In gymnosperms, the pollen chamber represents
1 A cavity in the ovule in which pollen grains are stored after pollination
2 An opening in the mega gametophyte through which the pollen approaches the egg
3 The megasporangium in which pollengrains develop
4 A cell in the pollen grain in which the sperms are formed.
Explanation:
In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination. Within this chamber, the generative cell divides to form two male gametes and the pollen cell starts elongating to form pollen tube.
332060
Match the columns I and II. Column I Column II A Coralloid roots P Symbiotic relationship B Mycorrhiza Q
Adiantum C Pteropsida R Cyanobacteria D Living fossil S
Ginkgo
1 A – R, B – P, C – Q, D – S
2 A – S, B – R, C – P, D – Q
3 A – P, B – R, C – Q, D – S
4 A – Q, B – P, C – R, D – S
Explanation:
A.Coralloid roots - R. Cyanobacteria B. Mycorrhiza - P. Symbiotic relationship C. Pteropsida - Q. Adiantum D. Living fossil - S. Ginkgo
BIOXI03: PLANT KINGDOM
332061
In which of the following groups do the male and female gametophytes have independent, free living existence?
1 Bryophytes and Gymnosperms
2 Bryophytes and Pteridophytes
3 Pteridophytes and Gymnosperms
4 Algae and Gymnosperms
Explanation:
Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. The male and female gametophytes remain within the microsporangium and megasporangium. The gametophytes are dependent on the sporophytes.
kcet - 2018
BIOXI03: PLANT KINGDOM
332062
Pinus, Cycas belongs to gymnosperms and not other phylum due to
1 Living fossil
2 Seed without fruit
3 Vessels present in xylem
4 Leaves structure
Explanation:
Cycas and Pinus bear seedless fruits. This is a characteristic feature of gymnosperms.
BIOXI03: PLANT KINGDOM
332063
Identify the gymnosperm having association with \({N_2}\) fixing bacteria
1 Pinus
2 Cycas
3 Sequoia
4 Cedrus
Explanation:
Cycas bears small specialised roots called coralloid roots that are associated with N2 - fixing cyanobacteria.
BIOXI03: PLANT KINGDOM
332064
In gymnosperms, the pollen chamber represents
1 A cavity in the ovule in which pollen grains are stored after pollination
2 An opening in the mega gametophyte through which the pollen approaches the egg
3 The megasporangium in which pollengrains develop
4 A cell in the pollen grain in which the sperms are formed.
Explanation:
In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination. Within this chamber, the generative cell divides to form two male gametes and the pollen cell starts elongating to form pollen tube.
332060
Match the columns I and II. Column I Column II A Coralloid roots P Symbiotic relationship B Mycorrhiza Q
Adiantum C Pteropsida R Cyanobacteria D Living fossil S
Ginkgo
1 A – R, B – P, C – Q, D – S
2 A – S, B – R, C – P, D – Q
3 A – P, B – R, C – Q, D – S
4 A – Q, B – P, C – R, D – S
Explanation:
A.Coralloid roots - R. Cyanobacteria B. Mycorrhiza - P. Symbiotic relationship C. Pteropsida - Q. Adiantum D. Living fossil - S. Ginkgo
BIOXI03: PLANT KINGDOM
332061
In which of the following groups do the male and female gametophytes have independent, free living existence?
1 Bryophytes and Gymnosperms
2 Bryophytes and Pteridophytes
3 Pteridophytes and Gymnosperms
4 Algae and Gymnosperms
Explanation:
Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. The male and female gametophytes remain within the microsporangium and megasporangium. The gametophytes are dependent on the sporophytes.
kcet - 2018
BIOXI03: PLANT KINGDOM
332062
Pinus, Cycas belongs to gymnosperms and not other phylum due to
1 Living fossil
2 Seed without fruit
3 Vessels present in xylem
4 Leaves structure
Explanation:
Cycas and Pinus bear seedless fruits. This is a characteristic feature of gymnosperms.
BIOXI03: PLANT KINGDOM
332063
Identify the gymnosperm having association with \({N_2}\) fixing bacteria
1 Pinus
2 Cycas
3 Sequoia
4 Cedrus
Explanation:
Cycas bears small specialised roots called coralloid roots that are associated with N2 - fixing cyanobacteria.
BIOXI03: PLANT KINGDOM
332064
In gymnosperms, the pollen chamber represents
1 A cavity in the ovule in which pollen grains are stored after pollination
2 An opening in the mega gametophyte through which the pollen approaches the egg
3 The megasporangium in which pollengrains develop
4 A cell in the pollen grain in which the sperms are formed.
Explanation:
In gymnosperms, the pollen chamber is a cavity in the ovule in which pollen grains are stored after pollination. Within this chamber, the generative cell divides to form two male gametes and the pollen cell starts elongating to form pollen tube.
