-
question_answer1)
A Chamber common to all types of canal system of sponges is called [CPMT 1973, 78; AFMC 1985]
A)
Paragastric cavity done
clear
B)
Radial chamber done
clear
C)
Excurrent canal done
clear
D)
Incurrent canal done
clear
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question_answer2)
Which one is not typical to all porifers
A)
Perforated body done
clear
B)
Choanocytes done
clear
C)
System of pores and canal done
clear
D)
Presence of spongin fibres done
clear
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question_answer3)
Which of the following is a member of phylum porifera
A)
Sycon done
clear
B)
Leucosolenia done
clear
C)
Spongilla done
clear
D)
All of them done
clear
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question_answer4)
Evolution of porifera from protozoans is evidenced by the animals like
A)
Euglena done
clear
B)
Chlamydomonas done
clear
C)
Volvox done
clear
D)
Paramecium done
clear
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question_answer5)
Amphiblastula and parenchymula larval stages are found in the
A)
Coelenterata done
clear
B)
Platyhelminthes done
clear
C)
Porifera done
clear
D)
None of these done
clear
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question_answer6)
Feeding in sponges takes place through [BHU 1999; CPMT 1999, 2005]
A)
Choanocytes done
clear
B)
Nurse cells done
clear
C)
ostia done
clear
D)
Osculum done
clear
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question_answer7)
Sponges free swimming larva is called as [EAMCET 1998; CPMT 2000]
A)
Veliger done
clear
B)
Trochophore done
clear
C)
Parenchymula done
clear
D)
Bipinnaria done
clear
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question_answer8)
The most distinctive character of sponge is [EAMCET 1998]
A)
Presence of choanocytes done
clear
B)
Unicellular done
clear
C)
Marine done
clear
D)
Asexual reproduction done
clear
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question_answer9)
Canal system is a characteristic of [BHU 1982, 85, 2000, 02; CPMT 1996; CBSE PMT 1999, RPMT 1999]
A)
Hydra done
clear
B)
Sponge done
clear
C)
Sea anemone done
clear
D)
Sea urchin done
clear
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question_answer10)
Fresh water sponges are also grouped in the
A)
Calcarea done
clear
B)
Heterocoela done
clear
C)
Demospongia done
clear
D)
Trachinellida done
clear
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question_answer11)
"Venus flower basket" is the name of the dried skeleton of [CPMT 1989; BHU 2001]
A)
Euspongia done
clear
B)
Euplectella done
clear
C)
Spongilla done
clear
D)
Leucosolenia done
clear
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question_answer12)
In Leucosolenia, digestion takes place in the [CPMT 1990]
A)
Paragastric cavity done
clear
B)
Stomach done
clear
C)
Osculum done
clear
D)
Food vacuole done
clear
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question_answer13)
Parenchymula is the larva of [CPMT 1990]
A)
Hydra done
clear
B)
Ascaris done
clear
C)
Pheretima done
clear
D)
Leucosolenia done
clear
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question_answer14)
Sponges are [BVP 2003]
A)
Sessile done
clear
B)
Planktonic done
clear
C)
Free-swimming done
clear
D)
Pelagic done
clear
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question_answer15)
Which sponge is given as a gift in Japan [DPMT 1984; CPMT 1998]
A)
Hyalonema done
clear
B)
Euplectella done
clear
C)
Tethya done
clear
D)
Leucosolenia done
clear
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question_answer16)
Water currents in Leucosolenia are produced by [AIIMS 1999; CPMT 1991; BHU 1999; DPMT 1999; Haryana PMT 2002]
A)
Choanocytes done
clear
B)
Pinacocytes done
clear
C)
Archeocytes done
clear
D)
Thesocytes done
clear
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question_answer17)
Members of phylum porifera are [CBSE PMT 2000; AFMC 2000; MH CET 2003]
A)
Exclusively marine animals done
clear
B)
Exclusively fresh water animal done
clear
C)
Mostly fresh water animals but few are marine animals done
clear
D)
Mostly marine animals but few are fresh water animals done
clear
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question_answer18)
Which sponge is found in the river [RPMT 1999]
A)
Cliona done
clear
B)
Spongilla done
clear
C)
Sycon done
clear
D)
Hyalonema done
clear
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question_answer19)
What is found in a sponge [CPMT 1996, 2002; RPMT 1995]
A)
Choanocytes done
clear
B)
Nematocysts done
clear
C)
Amoebocytes done
clear
D)
Interstitial cells done
clear
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question_answer20)
Which of the following is boring sponge [CPMT 1999]
A)
Cliona done
clear
B)
Chalina done
clear
C)
Euplectella done
clear
D)
Hyalonema done
clear
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question_answer21)
The common bath sponge belongs to the genus [MP PMT 2002]
A)
Sycon done
clear
B)
Leucosolenia done
clear
C)
Euspongia done
clear
D)
Spongilla done
clear
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question_answer22)
Classification of Phylum Porifera is based on [CBSE PMT 1991]
A)
Nutrition done
clear
B)
Spicules done
clear
C)
Locomotion done
clear
D)
Reproduction done
clear
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question_answer23)
Amphiblastula is the larva of [AFMC 2001; CPMT 2002]
A)
Hydra done
clear
B)
Sycon done
clear
C)
Planaria done
clear
D)
Leucosolenia done
clear
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question_answer24)
What is left, when bathsponges dries up [AIIMS 2002]
A)
Spicules done
clear
B)
Holdfast done
clear
C)
Tentacles done
clear
D)
Spongin fibres done
clear
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question_answer25)
What will happen if a sponge is cut into maximum possible pieces [RPMT 2001]
A)
These will die done
clear
B)
These will differentiate done
clear
C)
Every piece will form a sponge done
clear
D)
Some pieces will develop in organs done
clear
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question_answer26)
Which of the following cell type is capable giving rise to other cell type in sponges [Pb. PMT 2004; MH CET 2002]
A)
Archaeocytes done
clear
B)
Collenocytes done
clear
C)
Thesocytes done
clear
D)
Pinacocytes done
clear
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question_answer27)
Spongin fibres are secreted by [BVP 2000]
A)
Choanocytes done
clear
B)
Pinacocytes done
clear
C)
Amoebocytes done
clear
D)
Spongioblasts done
clear
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question_answer28)
Choanocytes perform [BVP 2001]
A)
Nutritions done
clear
B)
Excretion done
clear
C)
Reproduction done
clear
D)
Secretion of spicules done
clear
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question_answer29)
Sponges capture food particles with the help up [MH CET 2002]
A)
Choanocytes done
clear
B)
Pinacocytes done
clear
C)
Thesocytes done
clear
D)
Trophocytes done
clear
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question_answer30)
Cell aggregate body plan is found in the
A)
Volvox done
clear
B)
Colonial protozoans done
clear
C)
Porifera done
clear
D)
Both A and C done
clear
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question_answer31)
A sponges harmful to oyster industry is [BHU 1984; AFMC 1997]
A)
Spongilla done
clear
B)
Euspongia done
clear
C)
Hyalonema done
clear
D)
Cliona done
clear
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question_answer32)
Path of water in a sponge is [CPMT 1984]
A)
Dermal ostia \[\to \] Gastral ostia \[\to \]Osculum done
clear
B)
Dermal ostia\[\to \]Gastral ostia\[\to \]Spongocoel\[\to \]Osculum done
clear
C)
Osculum \[\to \] Spongocoel \[\to \] Choanocytes \[\to \] Ostia done
clear
D)
Pinacocytes \[\to \] Choanocytes \[\to \] Enteron \[\to \] Osculum done
clear
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question_answer33)
The epithelial lining of Sycon is made of [CPMT 1985]
A)
Amoebocytes done
clear
B)
Choanocytes done
clear
C)
Flat cells/Pinacocytes done
clear
D)
Both A and B done
clear
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question_answer34)
Internal asexual propagule of some fresh water sponges is [CPMT 1988]
A)
Gemmule done
clear
B)
Planula done
clear
C)
Stereoblastula done
clear
D)
Amphiblastula done
clear
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question_answer35)
Reproductive cells of sponges are formed from [CBSE PMT 1991]
A)
Pinacocytes done
clear
B)
Choanocytes done
clear
C)
Archaeocytes done
clear
D)
Trophocytes done
clear
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question_answer36)
Digestion of food occurs in sponges Leucosolenia in [CPMT 1992]
A)
Spongocoel done
clear
B)
Choanocytes followed by amoebocytes done
clear
C)
Amoebocytes done
clear
D)
Choanocytes done
clear
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question_answer37)
Venus Flower Basket belongs to Phylum [MP PMT 1987]
A)
Porifera done
clear
B)
Coelenterata done
clear
C)
Echinodermata done
clear
D)
Mollusca done
clear
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question_answer38)
Animal which passes water current through its body for food is [DPMT 1986]
A)
Star fish done
clear
B)
Sponge done
clear
C)
Hydra done
clear
D)
Earthworm done
clear
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question_answer39)
Sponges are [Bihar MDAT 1989]
A)
Diploblastic done
clear
B)
Monoblastic done
clear
C)
Triploblastic done
clear
D)
Tetrablastic done
clear
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question_answer40)
Nerve cells do not occur in [CPMT 1989]
A)
Nematodes done
clear
B)
Mosquitoes done
clear
C)
Sponges done
clear
D)
Coelenterates done
clear
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question_answer41)
Bath sponges is generally found in [CPMT 1992]
A)
Red Sea done
clear
B)
Gulf Mexico done
clear
C)
Pacific Islands done
clear
D)
Mediterranean sea done
clear
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question_answer42)
The simplest type of canal system in Porifera [CBSE PMT 1992]
A)
Ascon type done
clear
B)
Leucon type done
clear
C)
Sycon type done
clear
D)
Radial type done
clear
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question_answer43)
Thesocytes serve as [CPMT 1992]
A)
Sex cells done
clear
B)
Slime secreting cells done
clear
C)
Food reserve done
clear
D)
Embryonic cells done
clear
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question_answer44)
Animals devoid of respiratory, excretory and circulatory organs are [Haryana PMT 1993; DPMT 2002]
A)
Tapeworms done
clear
B)
Sponges done
clear
C)
Thread worms done
clear
D)
Live Fluke done
clear
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question_answer45)
Collar cells occur in [CPMT 1992, 93]
A)
Sponges done
clear
B)
Hydra done
clear
C)
Sandworm done
clear
D)
Star fish done
clear
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question_answer46)
Nutrition is sponges is [CPMT 1993]
A)
Extracellular done
clear
B)
Intracellular done
clear
C)
First extracellular and then intracellular done
clear
D)
First intracellular and then extracellular done
clear
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question_answer47)
Carmine particle put above osculum of a sponge would be [CPMT 1993]
A)
Left there done
clear
B)
Ingested and digested done
clear
C)
Thrown away done
clear
D)
Ingested and thrown away by ostia done
clear
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question_answer48)
Totipotent cells of sponges are [CPMT 1993]
A)
Thesocytes done
clear
B)
Archaeocytes done
clear
C)
Myocytes done
clear
D)
Chromocytes done
clear
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question_answer49)
Characteristics of sponges is [CPMT 1994]
A)
Diploblastic done
clear
B)
Aquatics done
clear
C)
Link between living and nonliving done
clear
D)
Body has pores done
clear
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question_answer50)
Sponges have evolved from [RPMT 1996]
A)
Ciliates done
clear
B)
Flagellates done
clear
C)
Protozoans done
clear
D)
Choanoflagellates done
clear
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question_answer51)
Which is universal for sponges [CBSE PMT 1996]
A)
Marine done
clear
B)
Calcareous spicules done
clear
C)
Radial symmetry done
clear
D)
High regenerative power done
clear
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question_answer52)
In sponges, canal system develops due to [CBSE PMT 1996]
A)
Gastrovascular system done
clear
B)
Folding of inner walls done
clear
C)
Porous walls done
clear
D)
Reproduction done
clear
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question_answer53)
Osculum occurs in [BHU 1997]
A)
Star Fish done
clear
B)
Ray Fish done
clear
C)
Hydra done
clear
D)
Sponge done
clear
View Solution play_arrow
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question_answer54)
Incurrent canals are lined by [CPMT 1998]
A)
Choanocytes done
clear
B)
Pinacocytes done
clear
C)
Porocytes done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer55)
Choanocytes in Ascon-type of canal system form lining of [CPMT 1998]
A)
Spongocoel done
clear
B)
Porocyte done
clear
C)
Apopyle done
clear
D)
Incurrent canal done
clear
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question_answer56)
The middle layer in body wall of porifera is [AIIMS 1999]
A)
Mesoderm done
clear
B)
Mesenchyme done
clear
C)
Mesogloea done
clear
D)
Mesentery done
clear
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question_answer57)
Sponges structure corresponding to mouth of other animals is [BHU 1999]
A)
Incurrent canal done
clear
B)
Ostium done
clear
C)
Osculum done
clear
D)
Excurrent canal done
clear
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question_answer58)
Glass Rope sponge is [BVP 2000]
A)
Hyalonema done
clear
B)
Euplectella done
clear
C)
Scypha done
clear
D)
Spongilla done
clear
View Solution play_arrow
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question_answer59)
Type of spongocoel found in Leucosolenia is [CPMT 2001]
A)
Ascon done
clear
B)
Leucon done
clear
C)
Sycon done
clear
D)
Rhagon done
clear
View Solution play_arrow
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question_answer60)
Skeleton made of spongin fibres occurs in [CPMT 2001; RPMT 2001]
A)
Calcarea done
clear
B)
Demospongiae done
clear
C)
Hexactinellida done
clear
D)
Both (a) and (b) done
clear
View Solution play_arrow
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question_answer61)
Spicules of silica occur in [APMEE 2001]
A)
Hyalonema done
clear
B)
Sycon done
clear
C)
Leucosolenia done
clear
D)
Grantia done
clear
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question_answer62)
Sponges are porifers because their bodies have [RPMT 2002]
A)
Spicules in skeleton done
clear
B)
Several pores done
clear
C)
Canal system done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer63)
Which of the following are 'multicellular grade' organisms [AFMC 1997; BVP 2004]
A)
Sponges done
clear
B)
Coelenterates done
clear
C)
Prokaryotes done
clear
D)
Vertebrates done
clear
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question_answer64)
Canal system in porifera is not concerned with [AFMC 2005]
A)
Respiration done
clear
B)
Nutrition done
clear
C)
Sexual reproduction done
clear
D)
None of these done
clear
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question_answer65)
Sycon belongs to a group of animals which are best described as [CBSE PMT 2003]
A)
Unicellular or acellular done
clear
B)
Multicellular without any tissue organisation done
clear
C)
Multicellular with a gastrovascular done
clear
D)
Multicellular having tissue organisation, but no body cavity done
clear
View Solution play_arrow