14
21
28
42
B. 21
(i) and (ii)
(ii) and (iii)
(i), (ii) and (iii)
All of these
Only (i)
Both (i) and (iii)
Only (iv)
All of these
starch formation
protein storage
general metabolism
enzyme secretion
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.
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
power of adaptability in diverse habitat.
property of producing large number of seeds.
nature of self pollination.
domestication of man.
morphological characters of various organisms.
anatomical characters of various organisms.
physiological characters of various organisms.
evolutionary relationships between the various organisms.
A holdfast, B stipe, C frond
A stipe, B holdfast, C frond
A frond, B stipe, C holdfast
A stipe, B frond, C holdfast
its contribution to prevent soil erosion.
its contribution in ecological succession.
its capability to remove CO from the atmosphere.
both (a) and (b)
Column-I | Column-II |
---|---|
A. Amphibian of the | I. Sphagnum plant kingdom |
B. Specialized structures | II. Angiosperms in liverworts for asexual reproduction |
C. Monocotyledons and | III. Bryophytes dicotyledons |
D. A plant which has | IV. Gemmae capacity to holding water |
A III; B IV; C I; D II
A III; B IV; C II; D I
A IV; B III; C II; D I
A III; B II; C IV; D I
only a few morphological characters.
evolutionary tendencies which are diverse.
anatomical characters which are adaptive in nature.
physiological traits alongwith morphological characters.
Column-I | Column-II |
---|---|
A. Phaeophyceae | I. Have an elaborate mechanism of spore dispersal |
B. Rhodophyceae | II. first terrestrial plant with vascular tissue-phloem and xylem |
C. Mosses | III. Asexual reproduction by biflagellate zoosposes |
D. Pteridophytes | IV. Polysiphonia, Porphyra, Gracilaria |
A III; B IV; C I; D II
A IV; B III; C I; D II
A IV; B III; C II; D I
A IV; B I; C III; D II
chlorophyceae
bryophyte
pteridophyte
gymnosperm
absence of pollination.
absence of seed.
absence of fertilization.
absence of ovary.
Zoospore
Endospore
Hypnospore
None of the above
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
numerical taxonomy
cytotaxonomy
chemotaxonomy
all of the above
2 - 8, equal, apical
2, unequal, lateral
2 - 6, equal, lateral
Absent
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
Cytotaxonomy
Numerical taxonomy
Chemotaxonomy
??-taxonomy
archegonia.
lack of vascular tissue.
swimming antherozoids.
independent gametophytes.
Nature of habitat
Structural organization of thallus
Chemical composition of the cell wall
Types of pigments present in the cell.
Equisetum and Psilotum
Lycopodium and Adiantum
Selaginella and Pteris
Pteris and Adiantum
Independent sporophyte
Presence of archegonia
Well developed vascular tissues
Independent gametophyte
(i) and (v) only
(ii), (iii) and (iv) only
All of the above
None of the above
Double fertilization is unique to gymnosperms and monocotyledons.
Sequoia, a gymnosperm, is one of the tallest tree species.
Phaeophyceae members possess chlorophyll a, c, carotenoids and xanthophylls.
Moss is a gametophyte which consists of two stages namely, protonemal stage and leafy stage.
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.
Phaeophyceae
Rhodophyceae
Chlorophyceae
Both (a) and (b)
A mechanism for moving water throughout the plant.
A mechanism to prevent desiccation of tissues.
An ability to screen ultraviolet radiation.
Both (b) and (c)
they produce spores.
they lack vascular tissues.
they lack roots.
their sporophyte is attached to the gametophyte.