(a) (i), (ii) and (iv) only (b) (ii), (iii) and (iv) only
(c) (i) and (iii) only (d) (ii) and (iv) only- Which of the following statements are correct regarding the
characteristics of halophiles?
I. In anaerobic conditions they may reduce sulphur to H 2 S.
II. They are able to survive in high salt conditions due to
mucilage covering and high internal salt content.
III. Red carotenoid pigment in their cell membrane protects
them from harmful solar radiations.
(a) I and III (b) I and II
(c) II and III (d) I, II and III. - Read the following statements and select the correct option.
Statement A : Scientific names are either derived from
Latin language or are latinised.
Statement B : Latin is used extensively all over the world
and has not changed with time.
(a) Both statements A and B are correct and statement B
is the correct explanation of statement A.
(b) Both statements A and B are correct but statement B is
not the correct explanation of statement A.
(c) Statement A is correct but statement B is incorrect.
(d) Both statements A and B are incorrect.
- Which of the following is a flagellated protozoan?
(a) Plasmodium (b) Paramecium
(c) Monocystis (d) Leishmania - Ananya saw a black fungus growing on some stale bread.
She must classify it under the Class
(a) Deuteromycetes (b) Basidiomycetes
(c) Ascomycetes (d) Phycomycetes. - Read the given statements and select an option stating
which ones are true (T) and which ones are false (F)?
(i) Prions are highly resistant glycoproteins causing
infections such as scrapie of sheep.
(ii) Genus is always polytyptic.
(iii) Largest botanical gardens in India is in Kolkata.
(iv) A class is a taxonomic category which includes one or
more related families.
(i) (ii) (iii) (iv)
(a) T T F F
(b) T F F T
(c) T F T T
(d) T F T F- The branch of science that deals with principles and
procedures for identification, nomenclature and classification
of organisms is called
(a) characterisation (b) biosystematics
(c) classification (d) taxonomy. - Which of the following is not a method of ingestion in
Amoeba?
(a) Invagination (b) Circumvallation
(c) Cyclosis (d) Circumfluence - The phylogenetic system of classification was first proposed
by
(a) Engler and Prantl (b) Hutchinson
(c) Julian Huxley (d) Takhtajan. - Choose the incorrect statement out of the following.
(a) Euglenoids have dual mode of nutrition - photosynthetic
in light and holozoic in dark.
(b) Sexual reproduction in unicellular yeast is similar to
that of some multicellular fungi.
(c) Phenetic classification is based on evolutionary
relationships of organisms.
(d) Mode of nutrition was a criteria for classification of
organisms into the five kingdoms by Whittaker. - Read the following statements and select the option that
correctly fill the blanks.
(i) In Paramecium, the undigested food is passed out
through .
(ii) In Entamoeba histolytica, the infective stage is
.
(iii) In Euglena, the eye spot contains a red pigment called
_____.
(i) (ii) (iii)
(a) cytostome minuta halorhodopsin
(b) cytopyge tetranucleate cyst astaxanthin
(c) cytostome microcyst halorhodopsin
(d) cytoproct binucleate cyst astaxanthin - Which of the following protozoan is an endoparasite and
lacks locomotory organelle?
(a) Leishmania (b) Entamoeba
(c) Monocystis (d) Balantidium
Key is published in this issue. Search now! JCheck your score! If your score is
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