Class : XI Phylum Porifera
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1 Class : XI Phylum Porifera 1. Name Porifera is given by (a) Aristole (b) Robert Grant (c) Lamarck (d) None 2. Choanocyte cells are characteristics of (a) Jelly fishes (b) Sponges (c) Platyhelminthes (d) All the above 3. Canal system is found in (a) Coelenterata (b) Enchinodermata (c) Porifera (d) All the above 4. In Leucosolenia, asexual reproduction takes place by (a) Binary fission (b) Sporulation (c) External budding (germination) (d) Cyst formation 5. The gametes in sponges develop from (a) Amoebocytes (b) Archeocytes (c) Choanocytes (d) Myocytes 6. Phylogenetically, the sponges have evolved from: (a) Protozoans (b) Flagallates (c) Choanoflagellates (d) Ciliates 7. In sponges, the food is stored in : (a) Trophocytes (b) Thesocytes (c) Desmocytes (d) Archeocytes 8. Which of the cells are found in sponges only (a) Amoebocytes (b) Chromocytes (c) Choanocytes (d) Archeocytes 9. Which one of the sponge corresponds to the mouth of other animals (a) Osculum (b) Incurrent canal (c) Ostia (d) Excurrent canal 10. A chamber common to all types of canal system of sponges is called : (a) Paragastric cavity (b) Radial chamber (c) Excurrent canal (d) Incurrent canal 11. If a carmine particle is put on the osculum of a living sponge, it will (a) Be ingested (b) Be thrown away (c) Rotate (d) Adhere 12. Canal System in Leucosolenia is (a) Asconoid (b) Syconoid (c) Lecuconoid (d) Rhagon
2 (a) Mesoderm (b) Mesenchyme (c) Mesogloea (d) Mesentery 18. The spongocoel in Leucosolenia is lined by (a) Amoebocytes (b) Choancoytes (c) Scleroblasts (d) Pinacocytes 19. The larva of Leucosolenia is (a) Parenchymula (b) Planula (c) Amphiblastual (d) Archeoblastual 20. The larva of Sycon is (a) Parenchymula (b) Planula (c) Amphiblastual (d) Redia 21. Exogenous budding a type of asexual reproduction in sponges is known as (a) Gemmulation (b) Gemmation (c) Regeneration (d) Amphimixis 22. Endogenous buddings is (a) Gemmule formation (b) Gamets formation (c) Gemmation (d) Endomixis 23. Spongilla is (a) Marine sponge (b) Fresh water sponge (c) No sponge (d) Parasiticsponge 24. Spongacoel is also known as (a) Paragastric cavity (b) Gastro-vascular (c) Water vascular cavity (d) Coelenteron 25. The body wall of sponges has many (a) Pores (b) Gemmules (c) Osculla (d) Trophocytes 26. Venus flower Basket is (a) Euplectella (b) Chalina (c) Hyalonema (d) Hippospongia 27. Excretory waste of Leucosolenia & sycon is (a) Ammonia (b) Urea (c) Guianine (d) Uric Acide 28. Maximum power of regeneration is found in (a) Sponge (b) Hydra (c) Starfish (d) None 29. Spicules in sponges are made up of (a) CaCO 3 (b) silica (c) Both (d) None 30. Tissue grade is absent in one of the following (a) Sponges (b) Protozoans (c) Both (d) None 31. A sponge can be distinguished from other animals by the presence of
3 (a) Porifera (b) Desmospongia (c) Hexactinellida (d) Calcarea 36. Parazoa includes (a) Cnidaria (b) Acidaria (c) Porifera (d) None of these 37. Most common method of reproduction in sponges is (a) binary fission (b) budding (c) multiple fission (d) sexual reproduction 38. The only fresh water species of sponges is (a) Scypha (b) Euspongia (c) Spongilla (d) Oscarella 39. Venus s flower basket is a (a) Sea anemone resembling a flower basket (b) sponge resembling a flower basket (c) glass rope sponge (d) ornamental mollusc 40. Digestion in sponges is (a) intracellular (b) intercellular (c) both a & b (d) extracellular
4 Class : XI Phylum Coelenterata 1. Nematocysts are the specialized cells found in the members of the phylum (a) Cnidaria (b) Prorifea (c) Annelida (d) Mollusca 2. Tentacles of Hydra help in (a) locomotion (b) food capturing (c) both a & b (d) None of these 3. Hydra is put under the phylum cnidaria because it has (a) cnidoblasts (b) tentacles (c) hypostome (d) interstitial cells 4. The posionous fluid present in the nematocysts of Hydra is (a) toxin (b) Hypnotoxin (c) venom (d) Haematin 5. Nematocysts are th organs of (a) sensation (b) reproduction (c) defence & offence (d) respiration 6. Hydra prevents self fertilization by being (a) Protogynous (b) hermaphrodite (c) protandrous (d) monoecious 7. The planula larva is found in the life history of (a) Hydrozoan (b) Anthozoan (c) Scyphozoan (d) All of the above 8. Polymorphic cnidarians are the members of the class (a) Hydrozoa (b) Scyphozoa (c) Actinozoa (d) None of these 9. Coral reef forming coelenterates belong to the class (a) Hydrozoa (b) Scyphozoa (c) Actinozoa (d) All of the above 10. Among coelenterates medusoid individuals are absent in members of the class (a) Anthozoa (b) Hydrozoa (c) Scyphozoa (d) None of these 11. Ephyra is the larval form of (a) Sea anemone (b) Aurelia (c) Obelia (d) Hydra 12. Six septa or six mesenteries are characteristic of (a) Aurelia (b) Hydra (c) Obelia (d) Sea anemone 13. Sea anemone is (a) diploblastic, radially symmetrical animal (b) diploblastic, bilaterally symmetrical animal
5 (a) Porifera (b) Coelenterata (c) Annelida (d) Vertebrata 18. Sexual dimorphism present in : (a) Porifera (b) Cnidarians (c) Sponges (d) None of these 19. In Hydra, nemato cysts are found in : (a) epidermis (b) gastro dernis (c) mesodermis (d) endodermis 20. Which of the following groups of animals is bilaterally symmetrical & diploblastics? (a) Sponges (b) Coelenterates (cnidarians) (c) Aschelminthes (d) Ctenophores 21. Primitive nervous system is formed in (a) Sponge (b) Coelenterata (c) Echin odermata (d) None of these 22. Third layer present between ectoderm & endoderm in coelenterata are : (a) Mesochyl (b) Mesoderm (c) Mesoglea (d) None of these 23. Digestion in cnidarians are : (a) Intracellular (b) Extracellular (c) Both (d) None of these 24. Stinging cells are : (a) Cnidoblast (Nematcyst) (b) Porifera (c) Annelide (d) None of these 25. The portuguese man of war is : (a) Hydra (b) Aurelia (c) Physalia (d) Obelia 26. Hydra is a : (a) Freswater polyp (b) Sea feather (c) Sea anemone (d) None of these 27. Medusae is present in : (a) Hydra (b) Aurelia (c) Both (d) Earthworm 28. Hypostome is present in : (a) Porifera (b) Cnidarian (c) Annelida (d) None of these 29. Skeleton in chidarian is composed of : (a) CaCO 3 (b) silica (c) Both (d) Chitin 30. Sea-fan is also known as (a) Meandrina (b) Gorgonia (c) Adamsia (d) Physalia
6 Class : XI Phylum Ctenophora 1. Ctenophora also known as : (a) Sea walnuts (b) Sea fan (c) Both (d) None of these 2. Statocyst is a : (a) Balance organ (b) Nerve cell (c) Nematocyst (d) None of these 3. Cydippid larva is present in : (a) Porifera (b) Coelenterata (c) Ctenophora (d) None of these 4. Digestion in ctenophora is : (a) Intracellular (b) Extra cellular (c) Both (d) None of these 5. Most distinctive feature of ctenophora is (a) Nematocyst (b) Bioluminscence (c) Hypostome (d) Both a & b 6. Fertilisation in ctenophora is : (a) External (b) Internal (c) Both (d) None of these 7. Eight rows of cilliated comb plates are feature of which phylum? (a) Porifera (b) Annelida (c) Ctenophora (d) Cnidarian 8. Comb plates helps in : (a) Reproduction (b) Feeding (c) Locomotion (d) Excretion 9. Member of ctenophora : (a) Pleurobrachia (b) Asterias (c) Earthworm (d) Sea anemone 10. Role of colloblasts cells : (a) Loco motion (b) Capturing the prey (c) Both (d) Respiration 11. Ctenophore known as comb jellies because of : (a) Colloblast (b) Comb like locomotory organs (c) Respiration (d) Bioluminescence 12. In ctenophora, members are : (a) Dioecious (b) Monoecious (c) Both (d) None of these 13. Which of the following phylum has no fresh water living?
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8 Kingdom : Monera 1. In Mycoplasma (PPLO) the plasmalemma is rich in : (a) Cellulose (b) Myosin (c) Mycosin (d) Glycogen (e) Cholesterol 2. Which cell inclusions are found in Mycoplasma, spirochaetes & rikettsiae? (a) RNA (b) DNA (c) Ribosomes (d) Sexual reproduction 3. Archaea differ from eubacteria in one of the following features : (a) They have 16S RNA (b) They are very ancient (c) They have a rigid wall (d) Their cell wall lacks peptidoglycan component 4. A peculiar odour that prevails in marshy areas & cowsheds is on account of a gas produced by : (a) Mycoplasma (b) Archaebacteria (c) Slime moulds (d) Cyanobacteria 5. The scientist to isolate sterptomycin for the first time is : (a) Pasteur (b) Fleming (c) Waksman (d) Burkholder 6. Which is not correct about antibiotics? (a) An antibiotic is effective against one specific pathogen (b) Fleming discovered the first commercial antibiotic (c) Waksman coined the term antibiotic in 1942 (d) Allergy may develop against an antibiotic 7. Antibiotics active against fungi are : (a) Polyenes (b) Neomycin (c) Terramycin (d) Streptomycin 8. The mode of action of novobiocin is : (a) induces abnormal protein synthesis (b) interferes with protein synthesis (c) inhibits DNA polymerization (d) inhibits cell wall synthesis 9. Which one does not have eukaryotic organisation? (a) Green algae (b) Blue-green algae (c) Red alage (d) Golden-brown algae 10. The cyanobacteria are also referred to as : (a) protists (b) golden algae (c) slime moulds (d) blue-green alage 11. Pigments phycocyanin & phycoerythrin occur in : (a) Bacillariophyceae (b) Archaebacteria
9 (c) Salvinia & Marsilea (d) Nostoc & legumes 14. Which one is nitrogen fixer blue-green alga? (a) Ulothrix (b) Anabaena (c) Ulva (d) Hydrodictyon 15. Sexual reproduction is absent in : (a) Xanthophyta (b) Cyanophyta (c) Chlorophyta (d) Rhodophyta 16. People recovering from long illness are often advised to take Spirulina because it : (a) restores intestinal microflora (b) makes food easily digestible (c) has antibiotic properties (d) is rich in proteins 17. Largest population of organisms of any type on Earth is of : (a) Insects (b) Algae (c) Bacteria (d) Fungi 18. Membrane bound organelles are absent in : (a) Streptococcus (b) Chlamydomonas (c) Plasmodium (d) Saccharomyces 19. The main difference in Gram (+) ve & Gram (-) ve bacteria resides in their (a) cell wall (b) flagella (c) cytoplasm (d) cell membrane 20. Gram negative bacteria detect & respond to chemicals by : (a) Porins (b) Muramic acid (c) Voutin granules (d) Lipopolysaccharide 21. What is correct about Escherichai coli & Rhizobium japonicum? (a) Both Gram (+) (b) Both Gram (-) (c) E. coli Gram (-) & R.japonicum Gram (+) (d) E. coli Gram (+) & R.japonicum Gram (-) 22. Which is not characteristic of Gram (=) bacteria? (a) Smooth cell wall (b) Outer membrane (c) Prominent mesosomes (d) 70-80% murien in cell wall (e) Two rings in basal body of flagellum 23. Which of the following is a gram negative bacterium? (a) Esherichia coli (b) Bascillus subtilis (c) Streptomyces coelicolor (d) Ampycolatopsis orientalis 24. Peptidoglycan is characteristic constituent of cell wall in : (a) Eudacteria & unicellular Eukaryotes (b) Archaebacteria & Eukaryotes (c) Bacteria & Cyanobacteria (d) Monera & Protista 25. Amino acid found only in bacteria & cyanobacteria is :
10 (d) Saccharomyces & Clostridum 29. Respiratory enzymes of aerobic bacteria are mainly located in : (a) Mitochondria (b) Chondrioids (c) Sphaerosomes (d) Phagosomes (e) Polysomes 30. Conversion of ammonia into nitrite & nitrate is : (a) Ammonification (b) Dentrification (c) Nitrification (d) All of these 31. Bacteria that uses chemical energy to fix CO 2 are : (a) Photoautotrophs (b) Heterotrophs (c) Chemoautotrophs (d) None of these 32. Streptococcus is used in preparation of : (a) Wine (b) Idli (c) Cheese (d) Bread 33. Bacteria connected with acetogenesis is : (a) Streptomonas (b) Clostridium (c) Bacillus (d) Citromonas 34. Azolla has symbiotic relationship with : (a) Chlorella (b) Anabaena (c) Nostoc (d) Tolypothrix 35. Which of the following is a commonest bacterial disease? (a) T.B. (b) Rabies (c) Small pox (d) Influenza 36. What is the disease tetanus also known as? (a) Gangrene (b) Shingles (c) Lockjaw (d) Whooping cough 37. Botulism is due to contamination of : (a) E. coli (b) Salmonella (c) Clostridium (d) Pseudomonas 38. Genetic recombination through transduction was first discovered in bacterium : (a) Escherichia coli (b) Salmonell typhimurium (c) Diplococcus pneumoniae (d) Agrobacterium tumefaciens 39. The common nitrogen fixer in paddy fields is : (a) Frankia (b) Oscillatoria (c) Rhizobium (d) Azospirillum 40. Nitrogen fixation by Rhizobium occurs inside : (a) Soil (b) Nodulated roots (c) Rhizosphere (d) Foliar association 41. Maximum modes of nutritiion are found in : (a) Monera (b) Protista
11 (c) Mesosomes (d) Holdfast
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