TRB Tripura PGT Biological Science Teacher Paper 2017

STPGT TRB Tripura Biological Science 2017 Paper

The term ‘species’ was coined by
(a) Linnaeus
(b) John Ray
(c) Darwin
(d) None of the above

In five-kingdom classification, chlamydomonas and Chlorella have been included in the kingdom
(a) Protista
(b) Monera
(c) Algae
(d) None of the above

‘Glycocalyx’ is
(a) a layer present between cell wall and membrane of bacteria
(b) cell wall of bacteria
(c) a layer surrounding the cell wall of bacteria
(d) None of the above

Protista differs from Monera in having
(a) cell wall
(b) nuclear membrane
(c) flagella
(d) None of the above

Which one of the following is TRUE for fungi ?
(a) They lack a rigid cell wall
(b) They are heterotrophs
(c) They lack nuclear membrane
(d) None of the above

Which structure is NOT the characteristic of mushrooms ?
(a) Ascospore
(b) Basidiospore
(c) Dikaryotic mycelium
(d) None of the above

Which one of the following viruses shows the presence of both DNA and RNA in its life cycle ?
(a) Reovirus
(b) Cyanophage
(c) Leuko virus
(d) None of the above

Which one of the following shows isogamy with non-flagellated gametes ?
(a) Sargassum
(b) Ectocarpus
(c) Spirogyra
(d) None of the above

The plant body is thalloid in
(a) Marchantia
(b) Sphagnum
(c) Funaria
(d) None of the above

Young sporophyte of ferns draws nourishment from gametophyte through
(a) root
(b) foot
(c) haustoria
(d) None of the above

The number of cotyledons in the seed of Cycas is
(a) one
(b) two
(c) many
(d) None of the above

Choanocyte is found in
(a) Porifera
(b) Coelenterata
(c) Ctenophora
(d) None of the above

The largest class of phylum Arthropoda is
(a) Arachnida
(b) Crustacea
(c) Hexapoda
(d) Chilopoda

Proboscis gland in Balanoglossus is related to
(a) respiration
(b) circulation
(c) reproduction
(d) excretion

Which one of the following has true placenta ?
(a) kangaroo
(b) Mongoose
(c) Platipus
(d) None of the above