HOME           
    
                                                                   OJEE
                                                     
(BIOLOGY)
                                                                                                                                                                       
                                                                                                                               Page 4

72. HIV virus affectes which of the following cell of AIDS patient ?

(VST - P.T - 05)

a) Helper T - cells

b) Cytotoxic T-cells

c) M-N cells

d) Suppresive cells

Ans. Helper T - cells

73. Which cell of the immune system cause pore formation at the surface of the plasma membrane?

(VST P.T. -05)

a) Killer T -cells b) Helper T-cells

c) B-cells d) Supressor T-cells

Ans. Killer T -cells

74. Cuvier is associated with _______.

Ans. Catastrophism

75. In higher vertibrates S.A. nodes helps in _______.

Ans. Initiation of heart beat

76. Renin is secreted from ____________.

Ans. Juxta glomerular cells

77. The animals which eat its own fecal material is _____________.

Ans. Coprophagus

78. Maximum net produtivity in the terrestrial ecosystem of tropical is ___________.

Ans. Rain forest

79. Which of the following is correct

a) Blood contains both RBC and WBC but lymph contains WBC

b) Lymph contains both RBC and WBC but Blood contains RBC

c) Blood contains both WBC and lymph contains RBC

d) Blood has RBC and WBC but lymph contains nothing

Ans. Blood contains both RBC and WBC but lymph contains WBC

80. Which is inorrect?

(VST - F.T - 03)

a) Wings of insects and wings of birds are analogus

b) Wings of insects and wings of bats are analogus

c) Wings of insects and wings of birds are homologus

 

d) Wings of bats and wings of birds are homologus

Ans. Wings of insects and wings of birds are homologus


81. Similipal is a ____________.

(VST - P.T - 05)

Ans. Biosphere reserve

82. For most people dreaming occurs in

a) REM sleep b) -sleep

c) Deep sleep d) Slow wave sleep

Ans. REM sleep (Rapid eye movment - REM)

83. Five kingdom system is proposed by ______.

(PTS - BZ- 01, MAT JEE - 04)

Ans. R.H. Whittaker

84. Binomial nomenclature is proposed by________.

Ans. Carolus Linnaeus

85. Ions that must be present for binding the cross bridges is __________.

Ans. Ca2+

86. Sequence of hormones regulating the menstrual cycle is ________.

(VST - F.T - 10)

Ans. FSH1 Oestrogen, progesterone.

87. Which is not correctly matched ?

a) Platyhelminthes Acoelomate

b) Nemathelminthes Pseudo coelomate

c) Annelida Enterocoelomate

d) Arthropoda Schizocoelomate

Ans. Annelida Enterocoelomate

88. In evolution of animals, which of the following feature evolved for the 1st time in Annelida ?

(MAT JEE - 05)

a) True coelum b) Cephalization

c) Bilaterally symmetry

d) Triploblastic nature

Ans. True coelum

89. Chloragogen cells found in alimentary canal of earthworm which helps in ______.

Ans. Excretory in nature

                             

 Other Pages: 1    2    3    5    6
Physics         Chemistry          Mathematics        Biology
All Rights Reserved © Padhee Tutorials Pvt. Ltd. Concept & Site Design by luminous infoways Pvt. Ltd.