41. The bacterial pili mainly contain
a. Carbohydrates
b. Lipids
c. Proteins
d. Minerals

42. The wonder drug of second world war is produced by
a. Algae
b. Fungi
c. Bacteria
d. Plants

43. Role of bacteria in carbon cycle is
a. Photosynthesis
b. Chemosynthesis
c. Breakdown of organic compounds
d. Assimilation of nitrogen compounds

44. Centromere is that part of chromosome where
a. Nucleoli are formed
b. Crossing over takes places
c. Chromatids are attached
d. Naking occurs

45. Somatic cell of the adult body are haploid in many except
a. Vertebrates
b. Invertebrates
c. Fungi
d. Vascular plants

46. Congential diseases are
a. Diseases present at birth
b. Deficiency disease
c. Occur during life
d. Spread from one individual to another

47. The enzyme needed in biological systems for joining two molecules is called
a. Lyases b. Diastases
c. Polymerases d. Hydrolase

48. Meosomes are the part of
a. Plasma membrane
b. ER
c. Lysosomes
d. Golgi

49. All prokaryotes are surrounded by a cell wall except
a. Mycoplasms
b. Sperochetes
c. Actinomycetes
d. Methanogena

50. Enzyme hydrolyzing bacterial cell wall
a. Lysozome
b. Reductase
c. Protease
d. Lysozyme

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