NEET Biology Previous year MCQ Bank With Answer Key - 12

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