Question

 (a) Name the different gases contained in the flask used as an experimental setup by S.L. Miller.  (b) On the basis of composition of gases in this experiment, what was the condition in the flask? (c) Write the conclusion drawn from this experiment.


class 12th CBSE Biology sample paper

Answer 1

a) The gases present in flask used by S.L Miller in his experimental setup was

  CH4 (methane ) , NH3 (ammonia) , H2O (water vapours ) , H2 (hydrogen).

b) On the basis of composition of gases in this experiment, the condition of the flask was  Anaerobic / Anoxygenic

c)The conclusion of this experiment is that Life is comes from the pre-existing non – living organic molecules and that formation of life was preceded by chemical evolution.

Answer 2

My friend plz refer the following,

1) gases are - CH4,NH3,H & water vapour

2) Condition is vacuum and some what like artificial earth.

3) Conclusion - few days later miller found formation of amino acids. Hence this proves that inorganic material can also be a means for evolution.