CTET Sample paper "science"-2

CBSE ADDA
31. Decomposition of organic matter is brought about by :
(A) Protozoa
(B) Plants
(C) Micro-organisms
(D) None of these

32. The smallest taxon is called :
(A) Class
(B) Order
(C) Genus
(D) Species

33. Which one of the following is the first National Park in India ?
(A) Kanha National Park
(B) Periyar National Park
(C) Corbett National Park
(D) Bandipur National Park

34. Which one of the following is having ssRNA ?
(A) TMV
(B) T_2-bacteriophage
(C) Polio Virus
(D) CMV

35. In Whittaker’s system of classification, prokaryotes are placed in the kingdom :
(A) Protista
(B) Monera
(C) Plantae
(D) Animalia

36. Virus consists of :
(A) Nucleic acid and protein
(B) Nucleic acid
(C) Orotein
(D) None of these

37. This substance is present in the cell walls of Gram Positive bacteria only :
(A) Peptidoglycan
(B) Lipopolysaccharides
(C) Teichoic acids
(D) None of these

38. Highest degree of polymorphism is found in :
(A) Protozoa
(B) Cnidaria
(C) Platyhelminthes
(D) Arthropoda

39. Sea mouse belongs to phylum :
(A) Mollusca
(B) Cnidaria
(C) Arthropoda
(D) Annelida

40. One of the following animal belongs to Cyclostomata :
(A) Channa
(B) Loris
(C) Dodo
(D) Petromyzon

41. An egg laying mammal is :
(A) Delphinus
(B) Macaca
(C) Ornithorhynchus
(D) Macropus

42. In sharks, one of the following is absent :
(A) Claspers
(B) Placoid scales
(C) Cartilaginous endoskeleton
(D) Air bladder

43. The devil fish and sea hare are :
(A) Molluscs
(B) Crustaceans
(C) Coelenterates
(D) Marine fish and mammal

44. Endothelium of blood vessels is made up of :
(A) Simple cuboidal epithelium
(B) Simple squamous epithelium
(C) Simple columnar epithelium
(D) Simple non-ciliated columnar

45. In humans, sphincter of Oddi is associated with the opening of :
(A) Common hepatopancreatic duct
(B) Pyloric stomach
(C) Oesophagus
(D) Colon

46. In human beings, the duration of cardiac cycle is :
(A) 0•08 second
(B) 0•5 second
(C) 0•8 second
(D) 8•0 second

47. In which part of nephron, reabsorption is minimum from filtrate ?
(A) Henle’s loop
(B) Proximal convoluted tubule
(C) Distal convoluted tubule
(D) Collecting duct

48. Which hormone level reaches peak during luteal phase of menstrual cycle ?
(A) Luteinizing hormone
(B) Progesterone
(C) Follicle stimulating hormone
(D) Estrogen

49. The largest subunit of prokaryotic ribosomes is :
(A) 30S
(B) 40S
(C) 50S
(D) 60S

50. Which of the following is a part of endomembrane system of eukaryotic cell ?
(A) Peroxisomes
(B) Chloroplasts
(C) Mitochondria
(D) Golgi complexes

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