Top 50 Microbiology Objective Questions

Microbiology Multiple Choice Questions (MCQ). Microbiology (Bacteria) MCQ is most important for all agriculture exam [y] like ICAR-JRF Plant Science, JRF Entomology, JRF Horticulture, JRF Agronomy [y], BHU Pre-PG, Raj Pre-PG [y], IBPS-SO/AFO [y], NET [y], CCI, IFFCO, NSC, AO, AAO, etc.

Q. 41. The bacterial pili mainly contain

a. Carbohydrates

b. Lipids

c. Proteins

d. Minerals

c. Proteins

Q. 42. The wonder drug of second world war is produced by

a. Algae

b. Fungi

c. Bacteria

d. Plants

b. Fungi

Q. 43. Role of bacteria in carbon cycle is

a. Photosynthesis
b. Chemosynthesis
c. Breakdown of organic compounds
d. Assimilation of nitrogen compounds

c. Breakdown of organic compounds

Q. 44. Centromere is that part of chromosome where

a. Nucleoli are formed
b. Crossing over takes places
c. Chromatids are attached
d. Naking occurs

c. Chromatids are attached

Q. 45. Somatic cell of the adult body are haploid in many except

a. Vertebrates

b. Invertebrates

c. Fungi

d. Vascular plants

c. Fungi

Q. 46. Congential diseases are

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

a. Diseases present at birth

Q. 47. The enzyme needed in biological systems for joining two molecules is called

a. Lyases

b. Diastases

c. Polymerases

d. Hydrolase

c. Polymerases

Q. 48. Meosomes are the part of

a. Plasma membrane

b. ER

c. Lysosomes

d. Golgi

a. Plasma membrane

Q. 49. All prokaryotes are surrounded by a cell wall except

a. Mycoplasms

b. Sperochetes

c. Actinomycetes

d. Methanogena

a. Mycoplasms

Q. 50. Enzyme hydrolyzing bacterial cell wall

a. Lysozome

b. Reductase

c. Protease

d. Lysozyme

d. Lysozyme

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