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question_answer1)
Pasteur succeeded in disproving the spontaneous generation theory because [DPMT 1992]
A)
He was lucky done
clear
B)
He was ingenious in drawing out the neck of the glass flasks so as to provide access to air but not to the micro-organism done
clear
C)
Of the fact that the sample of yeast taken by him was dead done
clear
D)
Of the clean surroundings of his laboratory done
clear
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question_answer2)
An experiment to prove that organic compounds were the basis of life, was performed by [CPMT 1986; MP PMT 1994]
A)
Oparin done
clear
B)
Miller done
clear
C)
Melvin done
clear
D)
Fox done
clear
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question_answer3)
The first organisms to appear on earth were more like plants because [NCERT 1977]
A)
Plants are simpler done
clear
B)
Plants are more done
clear
C)
Plants do photosynthesis done
clear
D)
None of the above done
clear
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question_answer4)
How has the free \[{{O}_{2}}\] been released into the earth's atmosphere whereas there was no free \[{{O}_{2}}\] at the time of origin of life
A)
By catabolic activity of animals done
clear
B)
By photosynthetic activity done
clear
C)
By heating of the earth done
clear
D)
None of the above done
clear
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question_answer5)
Which of the following was most likely to have been absent in free form in the primordial atmosphere at the time of origin of life [CPMT 1974, 76, 78, 82, 90, 98; AFMC 1985; NCERT 1971, 72; KCET 1998; MP PMT 1994, 99; CBSE PMT 2004; BVP 2004; BCECE 2005]
A)
\[{{O}_{2}}\] done
clear
B)
\[C{{H}_{4}}\] done
clear
C)
\[{{H}_{2}}\] done
clear
D)
\[N{{H}_{3}}\] done
clear
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question_answer6)
Nucleoprotein gave most probably the first sign of [CPMT 1978]
A)
Life done
clear
B)
Amino acids done
clear
C)
Soil done
clear
D)
Sugar done
clear
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question_answer7)
The complex organic compounds that may have first evolved in the direction of origin of life on earth, may have been [CPMT 1981]
A)
Proteins and amino acids done
clear
B)
Proteins and nucleic acids done
clear
C)
Urea and nucleic acids done
clear
D)
Urea and amino acids done
clear
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question_answer8)
In his classic experiment on the formation of amino acids, Stanley Miller passed an electric discharge in a mixture of [CPMT 1983, 89; MP PMT 2003; CPMT 2001]
A)
Steam, \[C{{H}_{4}},{{H}_{2}}\]and \[N{{H}_{3}}\] done
clear
B)
\[C{{H}_{4}},C{{O}_{2}},{{O}_{2}}\]and \[{{H}_{2}}\] done
clear
C)
\[N{{H}_{3}},{{O}_{2}},{{H}_{2}}\] and steam done
clear
D)
\[C{{H}_{4}},{{H}_{2}},{{N}_{2}}\]and steam done
clear
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question_answer9)
The scientist related with the over throw or the "Theory of spontaneous generation'' and experiments with swan-necked flasks is [CPMT 1986; KCET 2001]
A)
Von Helmont done
clear
B)
Louis Pasteur done
clear
C)
Miller done
clear
D)
Haeckel done
clear
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question_answer10)
According to spontaneous generation theory, the sequence of origin of life may be considered as [AFMC 1983; DPMT 1992]
A)
Amino acid? protein?chlorophyll done
clear
B)
Chlorophyll?starch?glycogen done
clear
C)
Nucleic acid? amino acid ? chlorophyll done
clear
D)
Chlorophyll ? nucleic acid ? amino acid done
clear
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question_answer11)
The idea of spontaneous generation was first refuted by [DPMT 2003; Kerala CET 2003]
A)
L. Pasteur done
clear
B)
L. Spallanzani done
clear
C)
F. Redi done
clear
D)
S.L. Miller done
clear
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question_answer12)
In his experiments for origin of life, Miller obtained [CPMT 1979]
A)
Proteins done
clear
B)
Ammonia done
clear
C)
Amino acids done
clear
D)
Hydrogen done
clear
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question_answer13)
The viruses contain [AFMC 1986]
A)
Proteins only done
clear
B)
DNA only done
clear
C)
Nucleic acids only done
clear
D)
Proteins, DNA or RNA (nucleic acids) done
clear
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question_answer14)
Abiogenesis means [AFMC 1986; CPMT 2002; BHU 2001; J&K CET 2002]
A)
Origin of life from non-living organisms done
clear
B)
Origin of life from living organisms done
clear
C)
Origin of viruses and microbes done
clear
D)
Spontaneous generation done
clear
View Solution play_arrow
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question_answer15)
About how long ago was the earth formed [CPMT 1999]
A)
4.6 billion years ago done
clear
B)
10 billion years ago done
clear
C)
3.0 billion years ago done
clear
D)
20 billion years ago done
clear
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question_answer16)
Type of nutrition in the primitive cells
A)
Heterotrophic or holozoic done
clear
B)
Heterophytic or holophytic done
clear
C)
Saprophytic done
clear
D)
Saprozoic done
clear
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question_answer17)
Louis Pasteur's view on the origin of life is that
A)
Life originated within six days done
clear
B)
Life originated spontaneously from the living organisms only done
clear
C)
Life originated spontaneously from the non-living substances done
clear
D)
Life came from other planet done
clear
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question_answer18)
Source of energy at the time of origin of life
A)
Heat, cosmic rays and lightning done
clear
B)
Heat only done
clear
C)
Cosmic rays only done
clear
D)
Lightning only done
clear
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question_answer19)
Growth by the absorption of molecules from the environment form the
A)
Macromolecules done
clear
B)
Coacervates done
clear
C)
Primitive molecules done
clear
D)
Protomolecules done
clear
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question_answer20)
The organism which appeared first on earth is known as
A)
Eubiont done
clear
B)
Probiont done
clear
C)
Eobiont done
clear
D)
True biont done
clear
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question_answer21)
The primitive environment was reducing because in it
A)
\[C{{O}_{2}}\]was more done
clear
B)
\[{{H}_{2}}\] was more done
clear
C)
\[{{O}_{2}}\] was more done
clear
D)
\[N{{H}_{3}}\]was more done
clear
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question_answer22)
The cells which does not contain nucleus and mitochondria are known as
A)
Primitive protozoan done
clear
B)
Primitive algae done
clear
C)
Eubiont done
clear
D)
Bacteria done
clear
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question_answer23)
There is no life on moon because there is no [NCERT 1973]
A)
Carbon done
clear
B)
Nitrogen done
clear
C)
Water done
clear
D)
Silicates done
clear
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question_answer24)
Which one of the following is the "Secret of life''
A)
Fatty acids done
clear
B)
Amino acids done
clear
C)
Proteins done
clear
D)
Nucleic acid done
clear
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question_answer25)
The organisms of earth are well protected from the layer of a gas which covers the earth. It is known as
A)
Nitrogen done
clear
B)
Ozone done
clear
C)
\[C{{O}_{2}}\] done
clear
D)
Dust done
clear
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question_answer26)
First respiration arose on earth was
A)
Anaerobic done
clear
B)
Aerobic done
clear
C)
(a) and (b) both done
clear
D)
Cellular respiration and as a respiratory gas done
clear
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question_answer27)
Formation of which complex molecules was noticed by Urey and Miller when they subjected substances like \[N{{H}_{3}},C{{H}_{4}},{{H}_{2}}O\] etc. to electric discharge [CBSE PMT 1993; BHU 2004]
A)
Aquaregia done
clear
B)
\[{{H}_{2}}S{{O}_{4}}\] done
clear
C)
\[HCN\] done
clear
D)
Amino acids done
clear
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question_answer28)
According to Oparin, life originated as [CPMT 1991]
A)
Self reproduction done
clear
B)
God's desire done
clear
C)
Effect of sunlight on mud done
clear
D)
None of these done
clear
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question_answer29)
'Origin of life' was written by [MP PMT 1997]
A)
Darwin done
clear
B)
Oparin done
clear
C)
Gray done
clear
D)
Smith done
clear
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question_answer30)
'Origin of life' as a result of chemical evolution has been properly explained by
A)
Miller done
clear
B)
Oparin done
clear
C)
Haldane done
clear
D)
Fox done
clear
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question_answer31)
The most vital process for the existence of life on earth is [KCET 1994]
A)
Communication in animals done
clear
B)
Photosynthesis by plants done
clear
C)
Reproduction in plants and animals done
clear
D)
Respiration in animals done
clear
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question_answer32)
The four elements that make up 99% of all elements found in a living system are [CBSE PMT 1994]
A)
H, O, C, N done
clear
B)
C, H, O, S done
clear
C)
C, H, O, P done
clear
D)
C, N, O, P done
clear
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question_answer33)
Which one of the following is the correct sequence of chemical substances produced during the origin of life on the earth [CBSE PMT 1996; AIEEE Pharmacy 2004]
A)
Water, amino acid, nucleic acid and enzyme done
clear
B)
Glucose, amino acid, nucleic acid and protein done
clear
C)
Amino acid, ammonium phosphate and nucleic acid done
clear
D)
Ammonia, amino acid, protein and nucleic acid done
clear
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question_answer34)
Which is responsible for origin of life
A)
Spontaneous generation done
clear
B)
Special creation done
clear
C)
Catastrophy done
clear
D)
Chemosynthesis done
clear
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question_answer35)
Life originated in
A)
Precambrian era done
clear
B)
Proterozoic era done
clear
C)
Mesozoic era done
clear
D)
Caenozoic era done
clear
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question_answer36)
Origin of life took place in/on [MP PMT 1997; CPMT 1991]
A)
Water done
clear
B)
Air done
clear
C)
Mountains done
clear
D)
Land done
clear
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question_answer37)
The presence of salts (NaCl and others) in animal body fluid gives an inference that life originated in the [MP PMT 1999; MP PMT 1998]
A)
Salt solutions done
clear
B)
Rain water done
clear
C)
Primitive ocean done
clear
D)
None of the above done
clear
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question_answer38)
Contribution in chemical evolution in origin of life [CPMT 2003]
A)
Miller done
clear
B)
Darwin done
clear
C)
Lamarck done
clear
D)
Wallace done
clear
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question_answer39)
Under certain conditions scientists have obtained cell-like structures. These are known as [MP PMT 1999; Pb. PMT 2000]
A)
Microbes done
clear
B)
Protists done
clear
C)
Coacervates done
clear
D)
Prebiotic soup done
clear
View Solution play_arrow
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question_answer40)
Chemical theory of origin of life was given by [CPMT 1999; JIPMER 2001]
A)
Stanley Miller done
clear
B)
Oparin and Haldane done
clear
C)
Louis Pasteur done
clear
D)
Spallanzani done
clear
View Solution play_arrow
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question_answer41)
The abiogenesis occurred about how many billion years ago [Pb. PMT 1999;CPMT 2000; KCET 2000]
A)
1.2 billion done
clear
B)
1.5 billion done
clear
C)
2.5 billion done
clear
D)
3.5 billion done
clear
View Solution play_arrow
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question_answer42)
Theory of special creation was given by [Pb. PMT 2000]
A)
Weisman done
clear
B)
Helmont done
clear
C)
Manpertuis done
clear
D)
Father Saurez done
clear
View Solution play_arrow
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question_answer43)
The spark-discharge apparatus to test chemical evolution of life was designed by [KCET 2001]
A)
Oparin and Haldane done
clear
B)
Miller and Urey done
clear
C)
Jacob and Monad done
clear
D)
Dixon and Jolley done
clear
View Solution play_arrow
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question_answer44)
Coacervates are [Kerala CET 2003]
A)
Colloid droplets done
clear
B)
Contain nucleoprotein done
clear
C)
Both (a) and (b) done
clear
D)
Protobiont done
clear
View Solution play_arrow
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question_answer45)
According to one of the most widely accepted theories the earth's atmosphere, before any life had originated on this planet, consisted of a mixture of [CPMT 1981, 84, 2002]
A)
Water vapours, \[{{H}_{2}},N{{H}_{3}}\] and \[C{{H}_{4}}\] done
clear
B)
\[{{H}_{2}},C{{O}_{2}},N{{H}_{3}}\]and \[C{{H}_{4}}\] done
clear
C)
\[{{O}_{2}},N{{H}_{3}},C{{H}_{4}}\] and water vapours done
clear
D)
Ozone, \[C{{H}_{4}},{{O}_{2}}\] and water vapours done
clear
View Solution play_arrow
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question_answer46)
The diagram represents Miller's experiment. Choose the correct combination of labelling. [Kerala CET 2004]
A)
A-electrodes, B-\[N{{H}_{3}}+{{H}_{2}}+{{H}_{2}}O+C{{H}_{4}},\]C-cold water, D-vacuum, E-U trap done
clear
B)
A-electrodes, B-\[N{{H}_{4}}+{{H}_{2}}+C{{O}_{2}}+C{{H}_{3}},\]C-hot water, D-vacuum, E-U trap done
clear
C)
A-electrodes, B-\[N{{H}_{3}}+{{H}_{2}}O\], C-hot water, D-tap, E-U trap done
clear
D)
A-electrodes, B-\[N{{H}_{3}}+{{H}_{2}}+{{H}_{2}}O+C{{H}_{4}}\], C-steam, D-vacuum, E-U trap done
clear
E)
(e) A-electrodes, B-\[N{{H}_{3}}+C{{H}_{4}}\],C-cold water, D-sink, E-U trap. done
clear
View Solution play_arrow
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question_answer47)
Coacervates were experimentally produced by [KCET 2004]
A)
Urey and Miller done
clear
B)
Jacob and Monod done
clear
C)
Fischer and Huxley done
clear
D)
Sidney Fox and Oparin done
clear
View Solution play_arrow
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question_answer48)
The gases used in the spark-discharge apparatus were [KCET 2004]
A)
\[{{H}_{2}},C{{H}_{4}}\] and \[N{{H}_{3}}\] done
clear
B)
\[CO,N{{H}_{3}},\] and \[C{{H}_{4}}\] done
clear
C)
\[{{O}_{2}},C{{O}_{2}},\] and \[N{{H}_{3}}\] done
clear
D)
\[N{{H}_{3}},C{{H}_{4}}\]and \[{{O}_{2}}\] done
clear
View Solution play_arrow
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question_answer49)
Big bang theory was proposed by [BVP 2001]
A)
Kant done
clear
B)
Lemaitre done
clear
C)
K. Bahadur done
clear
D)
Weismann done
clear
View Solution play_arrow
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question_answer50)
The part of the earth where life is exists, made up of [AMU 2005]
A)
Lithosphere done
clear
B)
Hydrosphere done
clear
C)
Atmosphere done
clear
D)
All of the above done
clear
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question_answer51)
First cell produced on earth is [Manipal 2005]
A)
Protobiont done
clear
B)
Protozoa done
clear
C)
Metazoa done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer52)
Stanley Miller proposed origin of life by [J&K 2005]
A)
Chemical synthesis done
clear
B)
Abiogenesis done
clear
C)
Biogenesis done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer53)
The idea that life originates from preexisting life is referred as [J&K 2005]
A)
Biogenesis theory done
clear
B)
Special creation theroy done
clear
C)
Abiogenesis theory done
clear
D)
Extraterrestrial theory done
clear
View Solution play_arrow
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question_answer54)
Which one of the following experiments suggests that simplest living organisms could not have originated spointaneously from non-living matter [CBSE PMT 2005]
A)
Larvae could appear in decaying organic matter done
clear
B)
MIcrobes did not appear in stored meat done
clear
C)
Microbes appeared from unsterilized organic matter done
clear
D)
Meat was not spoiled, when heated and kept sealed in a vessel. done
clear
View Solution play_arrow