NEET Biology Previous year MCQ Bank With Answer Key - 15

281. Which one of the following plants is monoecious?

(1) Papaya

(2) Pinus

(3) Marchantia

(4) Cycas

 

282. Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms

(1) perianth and two integuments

(2) absence of resin duct and leaf venation

(3) embryo development and apical meristem

(4) presence of vessel elements and absence of archegonia

 

283. Which one of the following is heterosporous?

(1) Adiantum

(2) Dryopteris

(3) Equisetum

(4) Salvinia

 

284. In which one of the following, male and female gametophytes do not have free living independent existence?

(1) Polytrichum

(2) Pteris

(3) Cedrus

(4) Funaria

 

285. Spore dissemination in some liverworts is aided by

(1) peristome teeth

(2) indusium

(3) elaters

(4) calyptra

 

286. Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups:

(1) Protists and mosses

(2) Eubacteria and archaea

(3) Liverworts and yeasts

(4) Cyanobacteria and diatoms

 

287. Algae have cell wall made up of:

(1) pectins, cellulose and proteins

(2) cellulose, galactans and mannans

(3) cellulose, hemicellulose and pectins

(4) hemicellulose, pectins and proteins

 

288. Male and female gametophytes are independent and free - living in:

(1) Pinus

(2) Mustard

(3) Sphagnum

(4) Castor

 

289. Which one of the following is a vascular cryptogam?

(1) Cedrus

(2) Ginkgo

(3) Equisetum

(4) Marchantia

 

290. Which one of the following has haplontic life cycle?

(1) Wheat

(2) Polytrichum

(3) Funaria

(4) Ustilago

 

291. Read the following five statements (A - E) and answer the question. (How many of the above statements are correct?)

(A) In Equisetum the female gametophyte is retained on the parent sporophyte.

(B) In Ginkgo male gametophyte is not independent.

(C) The sporophyte in Riccia is more developed than that in Polytrichum.

(D) Sexual reproduction in Volvox is isogamous.

(E) The spores of slime molds lack cell walls.

(1) Four

(2) Two

(3) One

(4) Three

 

292. Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses

(1) Mode of Nutrition

(2) Diplontic life cycle

(3) Multiplication by fragmentation

(4) Members of kingdom plantae

 

293. Which one of the following is a correct statement?

(1) Antheridiophores and archegoniophores are present in pteridophytes.

(2) Pteridophyte gametophyte has a protonemal and leafy stage

(3) Origin of seed habit can be traced in pteridophytes

(4) In gymnosperms female gametophyte is free-living

 

294. Cycas and Adiantum resemble each other in having:

(1) Cambium

(2) Seeds

(3) Vessels

(4) Motile Sperms

 

295. In angiosperms, functional megaspore develops into

(1) endosperm

(2) embryo sac

(3) pollen sac

(4) ovule

 

296. Which of the following is not correctly matched for the organism and its cell wall degrading enzyme?

(1) Fungi-Chitinase

(2) Plant cells-Cellulase

(3) Bacteria-Lysozyme

(4) Algae-Methylase

 

297. Read the following statements (A-E) and answer the question which follows them. (How many of the above statements are correct?)

1. In liverworts, mosses and ferns gametophytes are free-living

2. Gymnosperms and some ferns are heterosporous.

3. Sexual reproduction in Fucus, Volvox and Albugo is oogamous

4. The sporophyte in liveworts is more elaborate than that in mosses

5. Both, Pinus and Marchantia are dioecious

 (1) Four

(2) Two

(3) One

(4) Three

 

298. Isogamous condition with non-flagellated gametes is found in:

(1) Fucus

(2) Spirogyra

(3) Chlamydomonas

(4) Volvox

 

299. Besides paddy fields cyanobacteria are also found inside vegetative part of:

(1) Psilotum

(2) Cycas

(3) Pinus

(4) Equisetum

300. Which one of the following pairs is wrongly matched?

(1) Viroids - RNA

(2) Ginkgo -Archegonia

(3) Mustard - Synergids

(4) Salvinia - Prothallus