SSC Biology Previous year questions Set 7

61. Which of the following plays an important role in photosynthesis ?[SSC CGL Tier-I 2016]
A. Chloroplast
B. Centrosome
C. Tonoplast
D. Nematoblast

Answer –A. Chloroplast

62. Fermentation is a type of________ process . [SSC CGL Tier-I (CBE) 2016]
A. Aerobic Respiration
B. Anaerobic Respiration
C. Exothermic Reaction
D. Transpiration

Answer –B. Anaerobic Respiration

63. A genetically engineered form of brinjal known as the BT brinjal has been developed. The objective of this is [SSC CGL Tier-I (CBE) 2016]
A. to make it pest resistant
B. to improve its taste and nutritive value
C. to make it drought resistant
D. to make its shelf life longer

Answer –A. to make it pest resistant

64. Which of the following is least likely to be an effect of global warming? [SSC CGL Tier-I (CBE) 2016]
A. Increased frequency of hurricanes
B. Loss of fertile delta region as for agriculture
C. Decreased rate of photosynthesis in vegetation
D. Shrinking of the polar ice regions

Answer –C. Decreased rate of photosynthesis in vegetation

65. ____ is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi. [SSC CHSL 2017]
A. Cellulose
B. Glycogen
C. Pectin
D. Chitin

Answer –B. Glycogen

66. Growing agricultural crops between rows of planted trees is known as [SSC CGL Tier-I (CBE) 2016]
A. Social forestry
B. Jhum
C. Taungya system
D. Agro forestry

Answer –C. Taungya system

67. Which of the following increases the rate of heart beat? [SSC CGL Tier-I (CBE) 2016]
A. Peripheral nerves
B. Sympathetic nerves
C. Parasympathetic nerves
D. Cranial nerves

Answer –B. Sympathetic nerves

68. The deficiency of Niacin-a vitamin of B complex group causes the disease _____[SSC CGL Tier-I (CBE) 2016]
A. Marasmus
B. Pellagra
C. Rickets
D. Night blindness

Answer –B. Pellagra

69.A pair of contrasting characters controlling the same trait is called[SSC CGL Tier-I (CBE) 2016]
A. factors
B. loci
C. allele
D. lineage

Answer –A. factors

70. Algal bloom results from_ [SSC CGL Tier-I (CBE) 2016]
A. Global warming
B. Salination
C. Eutrophication
D. Biomagnification

Answer –C. Eutrophication

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