Origin of Life
Origin of Life: Overview
This topic covers concepts, such as, Evolution, Origin of Life, Panspermia & Oparin-Haldane Theory etc.
Important Questions on Origin of Life
In Miller-Urey experiment, the ratio of the methane, ammonia and hydrogen was
Panspermia hypothesis and biogenesis are the same.
Which theory states that life originated from the precursors present in space?
Follow the three column matching and find out the correct combinations
| S. No | Item | Component | Equivalent to |
| I) | Primordial atmosphere | Reducing atmosphere | |
| II) | Spark chamber | Electrodes | Lightning |
| III) | Condenser | Cool water | Simulation of rain |
| IV) | Aqueous solution | Amino acids | Chemical origin of life |
Theory of abiogenesis was conclusively disproved by
Which of the following is not the work of the mentioned scientist?
a) Georges Lemaitre first suggested the Big Bang Theory in the
b) Solar System originated from a nebula was first proposed by Johannes Kepler
c) Haldane proposed that the primordial sea served as a vast chemical laboratory powered by solar energy
d) Louis Pasteur showed that in pre-sterilised flasks, life came from killed yeast while in another flask open to air, new living organisms did not arise from 'killed yeast'.
The most accepted theory, named big-bang theory is proposed by Abbe Lemaitre in .
Experiment to prove that "organic compounds were the basis of life" was performed by:
Match the options given in Column I with those given in Column II.
|
|
Column – I |
|
Column – II |
|
A. |
Primary abiogenesis |
(i) |
Louis Pasteur |
|
B. |
Reproductive fitness |
(ii) |
Hugo de Vries |
|
C. |
Saltation |
(iii) |
Charles Darwin |
|
D. |
Biogenesis |
(iv) |
Oparin – Haldane |
Fill in the blank with the correct option provided in the bracket.
The first oxygenic photosynthetic organisms were _____(Mycoplasma/Rhodobacter/Cyanobacteria).
Fill in the blank with the correct option provided in the bracket.
'Theory of Biogenesis' was supported by _____(Louis Pasteur/Lamarck/Weisman).
Oxygen or Nitrogen was absent in the atmosphere of primitive earth?
Name the single landmass from which different continents have originated.(Pangaea/Panthalassa/Galapagos)
Match the scientists (Column ) with their contributions (Column ) and select the correct option.
| Column | Column | ||
| i. | Oparin | a. | Origin of species |
| ii. | Darwin | b. | Mutation theory |
| iii. | Mendel | c. | Coacervate theory |
| iv. | Hugo De Vries | d. | Laws of inheritance |
According to Oparin theory, one of the possible early sources of energy was/were
According to the 'Theory of Chemical evolution proposed by Oparin, _________ was the simplest organic compound to arise.
What kind of atmosphere was existing on primitive earth?
Which of the following theory states that, the life originated on the earth from non-living matter?
