Question No:1
Shellfish taken from water during a red tide would be
(A) poisoned with neurotoxin
(B) rich in proteins
(C) dead
(D) rich in minerals
Question No:2
Protests having non contractile pustule are
(A) ciliates
(B) Dinoflagellates
(C) sporozoans
(D) euglenoids
Question No:3
Which colourless protistan shows bioluminescence?
(A) Navicula
(B) Noctiluca
(C) Dictyostelium
(D) Phacus
Question No:4
Which one of the following organisms act as connecting link in possessing characters of plants and animals?
(A) Euglena
(B) Bacteria
(C) Mycoplasma
(D) Paramecium
Question No:5
Auxospores or rejuvenescent cells are characteristic of which of the followings?
(A) Dinoflagellates
(B) Diatoms
(C) Zooflagellates
(D) Sporozoans
Question No:6
Golden brown protists are
(A) dinophyceae
(B) bacillariophyceae
(C) euglenophyceae
(D) both a and b
Question No:7
Longitudinal binary fission is found in
(A) Amoeba
(B) Paramecium
(C) Euglena
(D) None
Question No:8
The cell wall is absent in
(A) dinoflagellates
(B) diatoms
(C) euglenoids
(D) none of these
Question No:9
Mesokaryon, a nucleus with condensed chromosomes, is present in
(A) euglenoids
(B) zooflagellates
(C) dinoflagellates
(D) diatoms
Question No:10
Silica gel (Kieselguhr)/diatomite is obtained from
(A) diatoms
(B) foraminiferans
(C) dinoflagellates
(D) fossilised radiolarians and diatoms
Question No:11
Some periplast covered golden Dinoflagellates called zooxanthellae occur in a number of marine protests & invertebrates. These are
(A) ciliates, radiolarians, foraminiferans
(B) sponges, jelly fishes
(C) gastropods
(D) all of the above
Question No:12
Paralytic shellfish poisoning (PSP) is caused by toxin saxitonin by
(A) Vorticella
(B) Ephidicum
(C) Gonyaulax
(D) Ceratium
Question No:13
A transparent bivalved siliceous shell (silica deposited in cellulosic cell wall) known as frustule is present in
(A) dinoflagellates
(B) diatoms
(C) euglenoids
(D) both b and c
Question No:14
The alga or protist used for the construction of sound proof room is
(A) Diatoms
(B) Chara
(C) Volvox
(D) Fucus
Question No:15
Diatomaceous earth is often accompanied by
(A) reserved carbohydrates
(B) deposits of stones
(C) petroleum fields
(D) deposits of coal
Question No:16
Photosensitivity in Euglena is due to
(A) flagellum
(B) paraflagellar body and stigma
(C) chromatophores
(D) metaboly
Question No:17
The outer covering of which organism is used as abrasive for metal polishing?
(A) Dinoflagellates
(B) Radiolarinas
(C) Sponge
(D) Diatoms
Question No:18
The source of oil and vitamin A in whale blubber/shark liver oil is
(A) Desmid
(B) Dinoflagellate
(C) Nitzschia
(D) b and c
Question No:19
The average size of diatoms go on decreasing as divisions progress. The original size is restored by
(A) statospores
(B) auxospores
(C) zoospores
(D) microspores
Question No:20
Multinucleate decomposer organism is
(A) Pelomyxa
(B) Physarum
(C) Dictyostellium
(D) Arcella