221. Pteridophytes differ from
mosses/bryophytes in possessing
(1) archegonia
(2) independent gametophyte
(3) flagellate spermatozoids
(4) well developed vascular system
222. Turpentine is obtained from
(1) Gymnospermous wood
(2) Angiospermous wood
(3) Ferns
(4) Pteridophytes
223. Resin and turpentine are obtained
from
(1) Cedrus
(2) Cycas
(3) Abies
(4) Pinus
224. In Pinus, the pollen grain has 6
chromosomes then in its endosperm will have
(1) 6
(2) 12
(3) 24
(4) 18
225. A plant having seeds but lacking
flowers and fruits belongs to
(1) Ferns
(2) Pteridophytes
(3) Gymnosperms
(4) Mosses
226. Which one is the most advanced from
evolutionary point of view.
(1) Chlamydomonas
(2) Selaginella
(3) Pinus
(4) Funaria
227. Pinus differs from mango in having
(1) ovules not enclosed in ovary
(2) tree habit
(3) wood
(4) green leaves
228. Pyrenoids are the centres for
formation of
(1) fat
(2) porphyra
(3) starch
(4) enzymes
229. Chloroplast of Chlamydomonas is
(1) collar-shaped
(2) stellate
(3) spiral
(4) cup-shaped
230. In Ulothrix/Spirogyra, reduction
division (meiosis) occurs at the time of
(1) zygospore germination
(2) gamete formation
(3) vegetative reproduction
(4) zoospore formation
231. The absence of chlorophyll, in the
lowermost cell of Ulothrix, shows
(1) cell characteristic
(2) functional fission
(3) beginning of labour division
(4) tissue formation
232. Which of the following cannot fix
nitrogen?
(1) Spirogyra
(2) Nostoc
(3) Anabaena
(4) Azotobacter
233. In Chlorophyceae, sexual
reproduction occurs by
(1) Oogamy only
(2) Isogamy and anisogamy
(3) Anisogamy and oogamy
(4) Isogamy, anisogamy and oogamy
234. Unique features of Bryophytes is
that they
(1) lack roots
(2) produce spores
(3) lack vascular tissues
(4) have sporophyte attached to gametophyte
235. The ‘wing’ of Pinus seed is derived
from
(1) surface of ovuliferous scale
(2) testa
(3) all the above
(4) testa and tegmen
236. In which one of these the elaters
are present along with mature spores in the capsule (to help in spore
dispersal)?
(1) Funaria
(2) Riccia
(3) Sphagnum
(4) Marchantia
237. The ‘amphibians’ of plant kingdom
are
(1) bryophytes with simple internal organization
(2) unicellular motile algae
(3) pteridophytes with complex internal
organization not reaching angiosperm level.
(4) multicellular non-motile algae
238. A well developed archegonium with
neck consisting of 4-6 rows of neck canal cells, characterises
(1) Pteridophytes and gymnosperms
(2) Gymnosperms only
(3) Gymnosperms and flowering plants
(4) Bryophytes and pteridophytes
239. The plant body of moss (Funaria) is
(1) predominantly sporophyte with
gametophyte
(2) completely sporophyte
(3) predominantly gametophyte with sporophyte
(4) completely gametophyte
240. Agar is commercially obtained from
(1) brown algae
(2) red algae
(3) blue-green algae
(4) green algae