Equisetum and Psilotum
Lycopodium and Adiantum
Selaginella and Pteris
Pteris and Adiantum
D. Pteris and Adiantum
Most algae are photosynthetic.
Algae can be classified according to their pigments.
All algae are filamentous.
Spirogyra does not produce zoospores.
red algae, brown algae, green algae respectively.
brown algae, red algae, green algae respectively.
red algae, green algae, brown algae respectively.
green algae, brown algae, red algae respectively.
it reduces transpiration.
it serves as a disinfectant.
it is easily available.
it is hygroscopic.
The predominant stage of its life cycle is the gametophyte which consists of two stages protonema and leafy stages.
Leafy stage are attached to the soil through unicellular and branched rhizoids.
Sex organs-antheridia and archegonia are produced at the apex of the leafy shoots.
All of the above
Chlorophyceae
Rhodophyceae
Phaeophyceae
None of these
(ii) and (iii) are correct but (i) and (iv) are incorrect.
(ii) and (iv) are correct but (i) and (iii) are incorrect.
(iii) and (iv) are correct but (i) and (ii) are incorrect.
(i) and (ii) are correct but (iii) and (iv) are incorrect.
Gymnosperms, angiosperms, ferns, moss, algae
Algae, moss, ferns, gymnosperms, angiosperms
Moss, algae, ferns, angiosperms, gymnosperms
Algae, ferns, angiosperms, gymnosperms, moss
microsporangia; macrosporangia
male strobili; female strobili
antheridia; archegonia
androecium; gynoecium
Two
Three
Four
One
Both (i) and (ii)
Both (ii) and (iii)
Both (i) and (iii)
All of these
8
4
16
12
rhodophyceae
bacillariophyceae
chlorophyceae
phaeophyceae
Chlorophyceae
Phaeophyceae
Rhodophyceae
Both (a) and (b)
Both statements -1 and statement - 2 are true and statement - 2 is the correct explanation of statement - 1.
Both statements -1 and statement - 2 are true but statement - 2 is not the correct explanation of statement - 1.
Statement -1 is true and statement - 2 is false.
Statement -1 is false and statement - 2 is true.
Pyrenoids contain protein besides starch.
Sexual reproduction may be isogamous, oogamous and anisogamous in green and brown algae.
Some of the members of algae also occur in association with fungi (lichen) and animals (eg, on sloth bear).
The leaves in pteridophytes are well adapted to withstand extremes of temperature, humidity and wind.
Column-I | Column-II |
---|---|
A. Presence of tap roots | (i) Bryophyte and coralloid roots |
B. The synergids and | (ii) Pteridophytes antipodal cells degenerates after fertilization |
C. The food is stored as | (iii) Red algae floridean starch which is very similar to amylopectin and glycogen in structure |
D. Presence of sporophyte | (iv) Angiosperms which is not free living but attached to the photosynthetic gametophytes and derives nourishment from it |
E. Members of this group | (v) Gymnosperms are used for medicinal purposes, as soil binders and frequently grown as ornamentals |
A-i B-ii C-iii D-iv E-v
A-iii B-v C-ii D-iv E-i
A-iii B-i C-v D-ii E-iv
A-v B-iv C-iii D-i E-ii
Only (i)
Both (i) and (iii)
Only (iv)
All of these
starch in their chloroplast.
vascular tissues.
chlorophyll.
cellulose in their cell walls.
Algae
Bryophytes
Pteridophytes
Gymnosperms
Chlorophyceae Major pigments are chl a and b.
Phaeophyceae Cell wall is made up of cellulose and algin.
Rhodophyceae Stored food is mannitol.
Chlorophyceae Cell wall is made up of cellulose.
Both statements -1 and statement - 2 are true and statement - 2 is the correct explanation of statement - 1.
Both statements -1 and statement - 2 are true but statement - 2 is not the correct explanation of statement - 1.
Statement -1 is true and statement - 2 is false.
Statement -1 is false and statement - 2 is true.
Chara, Fucus, Polysiphonia
Volvox, Spirogyra, Chlamydomonas
Porphyra, Ectocarpus, Ulothrix
Sargassum, Laminaria, Gracilaria
Ferns lack alternation of generation while mosses show the same.
Mosses are facultative aerobes while ferns are obligate aerobes.
Vascular bundles of ferns show xylem vessels while those of mosses lack it.
Sporophytes of ferns live much longer as compared to the sporophytes of mosses.
Phloem of both have companian cells.
Endosperm is formed before fertilization in both.
Origin of ovule and seed is similar in both.
Both have leaves, stem and roots.
morphologically identical haploid and diploid stages.
genetically identical haploid and diploid stages.
alteration of generations between heteromorphic haploid gametophytes and diploid sporophytes.
none of the above
haploid gametophyte
diploid gametophyte
diploid sporophyte
haploid sporophyte
Column -I | Column-II |
---|---|
(Classes of pteridophytes) | (Examples) |
A. Psilopsida | I. Selaginella |
B. Lycopsida | II. Psilotum |
C. Sphenopsida | III. Dryopteris |
D. Pteropsida | IV. Equisetum |
A II; B I; C IV; D III
A I; B II; C IV; D III
A II; B I; C III; D IV
A II; B IV; C I; D III
Column-I | Column-II |
---|---|
(Pattern of life cycle in plant) | (Examples) |
A. Haplontic | I. Bryophytes, Pteridophytes, life cycle Ectocarpus, Polysiphonia, Kelps |
B. Diplontic | II. Seed bearing plants life cycle (Gymnosperm and Angiosperm), Fucus |
C. Haplo-diplontic | III. Many algae (Volvox, life cycle Spirogyra) and some species of Chlamydomonas |
A III; B II; C I
A I; B II; C III
A II; B I; C III
A III; B I; C II
Column-I | Column-II |
---|---|
A. Agar | I. Single cell protein, used as food supplements by space travellers |
B. Algin | II. Red algae |
C. Carrageen | III. Brown algae |
D. Chlorella | IV. Gelidium, Gracilaria Spirullina |
A I; B II; C III; D IV
A IV; B III; C II; D I
A II; B I; C III; D IV
A III; B II; C I; D IV
moss
dicots
liverwort
gymnosperm