Biology MCQ Quiz Hub

1. Engler and Prantl published a phylogenetic system in the monograph
Genera Plantarum
Die Naturlichen Pflazenfamilien
Species Plantarum
Origin of species

2. Plague is caused by
Pasteurella pestis
Varicella virus
Pseudomonas
Xanthomonas

3. Bacteria involved in two-step conversion of ammonia into nitrate are
Azotobacter and Achromobacter
Pseudomonas and Nitrobacter
Nitrosomnas and Nitrobacter
Azotobacter and Nitrosomonas

4. Heterocysts, specialized for nitrogen fixation, occur in certain
Red algae( batrachospermum )
Green algae
Blue green algae
Brown algae

5. Prokaryotic flagellum consists of
Fiber enclosed by protein membrane
Fiber enclosed by unit membrane
Helically arranged protein molecules
Membrane enclosed 9+2 microtubular

6. Hans Ris coined the term genophore for
Stalk supporting spores
Bacterial chromosome
Genetic material of fungus
Genetic material of virus

7. Nitrogen fixing organism which can be free as well as symbiotic is
Anabaena
Azotobacter
Liverworts
Mosses

8. Which of the following is less general in characters as compared to genus
Species
Class
Family
Division

9. Which of the following combinations is correct for Wheat?
Genus Triticum, family Poaceae , order Poales, Class Dicotyledonae
Genus Triticum, family Poaceae , order Sapindales, class Monocotyledonae.
Genus Triticum, family Poaceae , order Poales, Class Moncotyledonae.
Genus Triticum , family Anacardiaceae, order Poales, class Monocotyledonae

10. Cells regulate their activity through
Flow of energy
Flow of material
Flow of information
Flow of smoke

11. A group of plants or animals with similar traits of any rank is
Order
Genus
Taxon
Species

12. In fish Catla catla, the specific name is identical with the generic name. It is an example of
Autonym
Tautonym
Species
Phylum

13. Which is the correct sequence of taxonomic categories
genus → Species → order → kingdom
Species → order → phylum → kingdom
Species → genus → order → phylum
None of the above

14. Linnaeus is credited with
Binomial nomenclature
Discovery of microscope
Theory of biogenesis
Discovery of blood circulation

15. Linnaeus evolved a system of nomenclature called
Monomial
Vernacular
Binomial
Polynomial

16. Metabolism is
Gain of energy
Release of energy
Release or gain of energy
Catabolism of a reaction

17. Thanatology is the science that deals with
Detection of lie
Identification of living
Solving paternity of child
Death in all its aspects

18. Pesticide used in preparation of herbarium
2, 4-D
NAA
Mercuric chloride
Carbon di sulphide

19. Maintenance of internal favorable conditions despite changes in external environment is
Entropy
Enthalpy
Steady state
None of the above

20. Identify from the following the only category that has a real existence
Phylum
Kingdom
Species
Genus

21. The term phylum was given by
Cuvier
Haeckel
Theophrastus
Linnaeus

22. Zoospore of Albugo possesses flagella
Two similar and apical
Four similar and medium
Four apical
Two dissimilar and median

23. Which occurs in amoebiasis
Stool with mucus
Mild diarrhea with alternate constipation
Stool with blood
All of the above

24. Fungal cell wall is formed of
Pectin
Hemicellulose
Chitin and cellulose
Chitin

25. Species of Saccharum originally grown in India was
S. officinarum
S. barberi
S. boulardii
S. munja

26. In a sponge, digestion takes place in
Paragastric cavity/Spongocoel
Osculum
Ostium
Food vacuoles

27. Long hollow bones connected by passages are characteristic of
Mammales
Aves
Reptiles
All of the above

28. Calotes versicolor is
Wall lizard
Flying lizard
Rock lizard
Garden lizard

29. In Sycon the larva is
Trochophore
Redia
Amphiblastula
Parenchymula

30. Filaria is spread by
Bed bug
Mosquito
House fly
Flea

31. Archaeopteryx is connecting link between
Reptiles and birds
Reptiles and mammals
Fishes and reptiles
None of the above

32. Body cavity of Hydra is called
Gastrovascular cavity
Coelenteron
Enterocoel
Both A and B

33. Lagoon is
Full moon
Sea breaking into land and separated by sand dunes
Spot in desert with presence of water
Horse-shoe shaped coral reef

34. Female Ascaris is differentiable from male in
Presence of cloaca
Shorter size
Straight posterior end
Presence of penial setae

35. A marine dinosaur is
Ichthyosaur
pelycosaur
Pterosaur
Tyrannosaurus

36. Stage between two larval moults is
Instar
Pupa
Morula
Larva

37. Boring Sponge is
Hyalonema
Cliona
Chalina
Spongilla

38. Which of the following is false regarding sponges
Development is indirect having a larval stage which is morphologically dist
Fertilization is external.
They are generally unsymmetrical and marine.
Digestion is intracellular.

39. Phylum Arthropoda is the largest phylum in the animal kingdom. Which is the second largest phylum
Mollusca
Annelida
Hemichordata
Echinodermata

40. Arms are absent in
Sea uricin
Sea cucumber
Human
Both A and B

41. Pseudo metamerism occur in
Turbellaria
Trematoda
Cestoda
All of the above

42. Sponges reproduce asexually by
Multiple fission
Binnary fission
Fragmentation
Sporulation

43. Which of the following phyla is correctly matched with its two general characters
Mollusca – Oviparous and indirect development
Arthropoda – Chitinous exoskeleton and closed type of circulatory system.
Cnidaria – Triploblasty, radial symmetry and gastrovascular cavity.
Echinodermata – Water vascular system and internal fertilization.

44. Which of the following is not an annelidian character
Tripploblastic body
Enterocoel
Metamerism
Bilateral symmetry

45. Give the correct matching of causative agent/germ and disease
Anopheles – Malaria
Leishmania –Sleeping sickness
Glossina – Kala-azar
Wuchereria – Filariasis

46. The young of some insects resemble the adult in general structure but lack the wings and lack the wings and mature reproductive organs. Such a young one is called
Nymph
Grub
Caterpillar
Maggot

47. Intermediate between diploblastic and triploblastic body structure is found in
Porifers
Coelenterates
Ctenphores
Platyhelmintes

48. In which of the following groups all animals are triploblastic
Annelida, Mollusca, Porifera
Arthropoda, Cnidaria, Annelida.
Mollusca, Echinodermata, Annelida.
Mollusca, Ctenophora, Arthropoda.