- 1(current)
Q. No.In Miller's experiment, he used a mixture of CH4, NH3, H2 and water vapour in a closed flask to mimic early earth conditions. What was the temperature at which this flask was kept?
(a)
(b)
(c)
(d)
Which one of the following was obtained by S. Miller in his experiments on the origin of life before 1953:
1. Simple sugars
2. Amino acids
3. Nucleotide
4. Peptides
In the apparatus of the Urey and Miller experiment, the gases [G] contained in the flask are:
| 1. | Methane, Carbon dioxide, Ammonia, and Water vapour |
| 2. | Methane, Hydrogen cyanide, Ammonia, and Water vapour |
| 3. | Methane, Ammonia, Hydrogen, and Water vapour |
| 4. | Carbon dioxide, Oxygen, Hydrogen, and Ammonia |
Which of the following statements is true?
(1) A British scientist created the conditions proposed by Oparin and Haldane in a closed flask with temperature of 800 degree Celsius in electric discharge along with gases methane, hydrogen, ammonia and water vapour and observed formation of amino acid.
(2) Some similar experimental setups were also prepared by other scientists and formation of sugar, nitrogenous bases, Pigments and Fats was recorded.
(3) The processes of chemical evolution were occurring elsewhere in space was concluded by the analysis of content of gaseous cloud.
(4) The first self replicating metabolic capsule of life arose 3 billion years back.
The diagram shown below represents Miller's experiment with certain labelled parts. Find out the correct set of labelling:
| 1. |
A - CH4, NH3, H2O, vapour, CO2 B - Vacuum pump C - Alanine, glycine, aspartic acid |
| 2. |
C - Alanine, glycine, glutamic acid D - Vacuum pump F - Electrodes |
| 3. |
A - CH4, NH3, H2 , H2O B - Condenser E - Vacuum pump |
| 4. |
A - CH4, NH3, H2O, vapour, H2 B - Alanine, Glycine, aspartic acid D - Boiling water |
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Q. No.
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