In gymnosperm pollination is exclusively by
1.animals
2.wind
3.insects
4.water
Posted Date:-2021-06-21 10:39:17
A fern differs from moss in having
1.An independent gametophyte
2.An independent sporophyte
3.Presence of archegonia
4.Swimming antherozoids
Posted Date:-2021-06-21 10:39:17
A gymnospermic plant
1.bear flower
2.exhibit no vascular tissue
3.produce seeds in cones
4.does not produce seeds in cones
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A specialised organ of the sporophyte for attachment to the gametophyte is called
1.Stalk
2.Foot
3.Apophysis
4.Root
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Ability to fix atmospheric nitrogen is found in
1.Leaves of some crop plants
2.Chlorella
3.Some marine red algae
4.Some blue green algae
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According to the available fossil record, which of the following are the first vascular plants
1.cycads
2.horsetails
3.lycopsids
4.psilophytales
Posted Date:-2021-06-21 10:39:17
Algae differ from Riccia ana Marchantia in having
1.Multicellular body
2.Multicellular sex organs
3.Pyrenoids in the cell
4.Thalloid body
Posted Date:-2021-06-21 10:39:17
All of the following plants are heterosporous except
1.Pinus
2.Marselia
3.Selaginella
4.Dryopteris
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Alternation of generation is exhibited by
1.bryophytes
2.pteridophytes
3.gymnosperms
4.all plants
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Bryophyte differ from pteridophytes in being
1.Non-vasculature
2.Seeded
3.Vasculature
4.Sporophytic
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Cephaleoures is
1.An epiphytic green algae
2.A parasitic green algae
3.A fresh water green algae
4.A colourless red algae
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Circinate vernation is found in
1.cycas
2.fern
3.a and b
4.none of these
Posted Date:-2021-06-21 10:39:17
Conducting tissue in moss is made up of
1.Xylem and phloem
2.Xylem
3.Collenchyma
4.Parenchyma
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Coralloid roots are found in
1.Cycas
2.Dryopteris
3.Pinus
4.Lycopodium
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Endosperm in gymnosperm is formed
1.at the time of fertilization
2.before fertilization
3.after fertilization
4.along with the development of embryo
Posted Date:-2021-06-21 10:39:17
Fern plants are
1.mesophytes
2.Hydrophytes
3.Xerophytes
4.hygrophytes
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Gymnosperm differ from angiosperm
1.having seeds
2.having fruits
3.having naked ovules
4.none of these
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Heterocysts are
1.Green and thin walled
2.Green and thick walled
3.Colourless and thin walled
4.Colourless and thick walled
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If the chromosome number in the leaf of Funaria is 20, what will be the chromosome number in the spores
1.20
2.40
3.10
4.5
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If the leaf of Funaria has 5 chromosomes, the primary protonema will have
1.10
2.5
3.15
4.20
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In Pteridophyte, reduction division occurs when
1.spores are formed
2.gametes are formed
3.Prothallus is formed
4.sex organs are formed
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In which of the following feature angiosperm resemble gymnosperm
1.presence of ovules
2.presence of vessel
3.nature of endosperm
4.mode of fertilization
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In which of the following group would you place a plant which produce seeds but lacks flower
1.pteridophytes
2.Fungi
3.bryophytes
4.gymnosperms
Posted Date:-2021-06-21 10:39:17
In which of the following group would you place a plant which produces spores, has vascular tissue and lacks seed
1.Algae
2.Pteridophyte
3.Gymnosperm
4.Bryophyte
Posted Date:-2021-06-21 10:39:17
Iodine is obtained from
1.Ulothrix
2.Ectocarpus
3.Laminaria
4.Oedogonium
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Agar-Agar is obtained from
1.Gelidium
2.Polysiphonia
3.Fucus
4.Laminaria
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Kelps is obtained from
1.Algae
2.Marine algae
3.Aquatic algae
4.Lichens
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Largest sperms are found in
1.Pinus
2.Cedrus
3.Cycas
4.Gnetum
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Liverworts are closely related to
1.Algae
2.fungi
3.Lichen
4.Mosses
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Megasporophyll is the term used in gymnosperm to denote
1.carpels
2.stamens
3.leaves
4.female cone
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Most primitive living vascular plants are
1.brown algae
2.sphagnum
3.ferns
4.cycads
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One of the following is present in blue green algae
1.Starch
2.Any polysaccharide
3.Cyanophacean granule
4.Floridian starch
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Origin and evolution of sex in algae is best seen in
1.Blue green algae
2.Green algae
3.Red algae
4.Brown algae
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Perisperm is
1.outgrowth of the outer integument
2.surviving nucellus in the seed
3.outgrowth of funicles
4.all of these
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Phloem of gymnosperm differ from angiosperm in
1.having parenchyma
2.having no companion cells
3.having no sieve tubes
4.having no sclerenchyma
Posted Date:-2021-06-21 10:39:17
Phloem of gymnosperm differ from angiosperm in
1.having parenchyma
2.having no companion cells
3.having no sieve tubes
4.having no sclerenchyma
Posted Date:-2021-06-21 10:39:17
Plants which are not differentiated into roots, stem and leaves are grouped under
1.Gymnosperms
2.Pteridophytes
3.Thallophytes
4.Spermatophytes
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Prothallus represents
1.gametophytic phase in a fern
2.sporophytic phase in a fern
3.gametophytic phase in a angiosperm
4.gametophytic phase in a gymnosperm
Posted Date:-2021-06-21 10:39:17
Pteridophytes are also called
1.phanerogams
2.vascular cryptogams
3.amphibians of the plant kingdom
4.spermatophytes
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Sargasso sea is named after an algae Sargassum which is a
1.Green algae
2.Brown algae
3.Red algae
4.Blue green algae
Posted Date:-2021-06-21 10:39:17
Spore baring leaf is called
1.sorus
2.indusium
3.ramentum
4.sporophyll
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The dominant generation in Pteridophyte is
1.haploid
2.gametophytic
3.diploid
4.triploid
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The first land inhabitant plants are
1.Pteridophytes
2.Bryophytes
3.Gymnosperms
4.Angiosperms
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The megasporium is also known as
1.ovule
2.nucellus
3.fruit
4.micropyle
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The most advanced order in gymnosperms
1.Cycadales
2.Coniferales
3.Gnetales
4.Taxales
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The only positive evidence of aquatic ancestry of bryophyte is
1.Thread like protonema
2.Green colour
3.Some forms are still aquatic
4.Ciliated sperms
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The protonema is a stage in the life cycle of
1.Riccia
2.Funaria
3.All bryophytes
4.Cycas
Posted Date:-2021-06-21 10:39:17
The structure that produce gametes in the Prothallus are
1.anthers and archegonia
2.ascogonium and anthers
3.antheridia and archegonia
4.none of these
Posted Date:-2021-06-21 10:39:17
The unique feature of bryophytes compared to other green plant group is that
1.They produce spores
2.They lack vascular tissue
3.They lack roots
4.There sporophyte is attached to the gametophyte
Posted Date:-2021-06-21 10:39:17
To which group would you assign a plant which produces spores and embryos, but lacks seed and vasculature
1.Algae
2.Fungi
3.Pteridophyte
4.Bryopyte
Posted Date:-2021-06-21 10:39:17
What happens to the spore of ferns
1.it germinates to become a prothallus
2.it germinates to become another spore forming a fern plant
3.it joins with another spore to become a seedling
4.it encysts and is devoured by snail
Posted Date:-2021-06-21 10:39:17
Which are the most primitive group of algae
1.Blue green algae
2.Red algae
3.Brown algae
4.Green algae
Posted Date:-2021-06-21 10:39:17
Which group of plant constitute the lower bryophytes
1.Liverworts
2.Mosses
3.Anthoceratles
4.Jungermaniales
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Which is wrong in respect to bryophytes?
1.Water is essential for fertilization
2.Presence of archegonia
3.Presence of ciliated sperms
4.Presence of autotrophic independent sporophyte
Posted Date:-2021-06-21 10:39:17
Which of the algae is responsible for red colour of red sea
1.Chlamydomonas brauii
2.Trichodesmium erythrium
3.Ulothrix zonata
4.None of the above
Posted Date:-2021-06-21 10:39:17
Which of the following is diploid in moss plant
1.Spore
2.Leaves
3.Spore mother cell
4.Gametes
Posted Date:-2021-06-21 10:39:17
Which of the following is the amphibian of the plant kingdom?
1.Pteridophytes
2.Bryophytes
3.Gymnosperms
4.Angiosperms
Posted Date:-2021-06-21 10:39:17
Which of the following is the most advanced group of algae
1.Cyanophyta
2.Rhodophyta
3.Phaeophyta
4.Chlorophyta
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Zooidogamy is seen in
1.Cycas
2.Gnetum
3.Pinus
4.angiosperm
Posted Date:-2021-06-21 10:39:17
Zygotic meiosis is a characteristic feature of
1.Algae
2.Bryophytes
3.Pteridophytes
4.Gymnosperms
Posted Date:-2021-06-21 10:39:17