Two
Three
Four
One
A. Two
(i) and (v) only
(ii), (iii) and (iv) only
All of the above
None of the above
a cuticle and flagellated sperm.
vascular tissues and alternation of generations.
seeds and flagellated sperm.
alternation of generations and seeds.
Equisetum and Psilotum
Lycopodium and Adiantum
Selaginella and Pteris
Pteris and Adiantum
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
isogamous
oogamous
anisogamous
agamous
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
(i) and (ii)
(ii) and (iii)
(i), (ii) and (iii)
All of these
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
seeds
motile sperms
cambium
vessels
classification of chemicals found in plants.
use of phytochemical data in systematic botany.
application of chemicals on herbarium sheets.
use of statistical methods in chemical yielding plants.
is a stage of gametophytic generation.
is a creeping, green, branched and develops directly from a spore.
produces lateral bud which forms leafy plant body.
All of the above
power of adaptability in diverse habitat.
property of producing large number of seeds.
nature of self pollination.
domestication of man.
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.
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.
it reduces transpiration.
it serves as a disinfectant.
it is easily available.
it is hygroscopic.
8
4
16
12
In angiosperms, each embryo sac has a three-celled egg apparatus one egg cell and two synergids, three antipodal cells and two polar nuclei.
All seed bearing plants i.e., gymnosperms and angiosperms follow dipontic life patterns of plants.
In gymosperms, roots in some genera have fungal association in the form of mycorrhiza (Pinus) while in some others (Cycas) small specialized roots called coralloid are associated with N2 fixing cyanobacteria.
All of the above
archegonia.
lack of vascular tissue.
swimming antherozoids.
independent gametophytes.
2 - 8, equal, apical
2, unequal, lateral
2 - 6, equal, lateral
Absent
numerical taxonomy
cytotaxonomy
chemotaxonomy
all of the above
three mitotic divisions.
one meiotic and two mitotic divisions.
two meiotic divisions.
a single meiotic division.
(i) and (ii)
(iii) only
(ii) and (iii)
(iii) and (iv)
Since most rhodophyta grow at great depths, the chlorophyll can only absorb light in the red area of the spectrum.
The wavelengths of light that are absorbed by chlorophyll are passed to phycoerythrin (a red pigment).
Red pigment of rhodophyta absorbs all the light waves.
The light reaching the greatest depth in water is in the blue-green region of the spectrum, is absorbed by phycoerythrin.
chlorophyceae
bryophyte
pteridophyte
gymnosperm
Column-I | Column-II |
---|---|
(Group of Planet Kingdom) | (Examples) |
A. Algae | I. Solanum tuberosum |
B. Fungi | II. Equisetum |
C. Angiosperm | III. Cycas |
D. Pteridophyte | IV. Chlamydomonas |
E. Gymnosperm | V. Rhizopus |
A V; B IV; C I; D II; E III
A IV; B V; C I; D II; E III
A IV; B I; C V; D II; E III
A IV; B I; C V; D III; E II
haploid gametophyte
diploid gametophyte
diploid sporophyte
haploid sporophyte
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
Algae
Bryophytes
Gymnosperms
Pteridophytes
Cytotaxonomy
Numerical taxonomy
Chemotaxonomy
??-taxonomy
green algae
brown algae
red algae
golden brown algae