Identify the correct sequence in which the following subatances have appeared during the c ourse of

Question

Identify the correct sequence in which the following subatances have appeared during the c ourse of evolution of liffe on earth

Accepted Answer

Primitive atmosphere wae reducing type (without free oxygen). Hydrogen atoms combined with oxygen forming wter and with nitrogen, forming ammonia. Water and ammonia were probably the first compound molecules of primitive earth. The primitive at+mospere contained gases like CO2, CO, N, H2, etc and methane (CH4) was the first organic compound to formed in primitive atmosphere. In the primitive atmosphere, electric discharge, ATP and solar energy provided the source of energy for polymerization reactions of organic synthesis which leading to the synthesis of amino acids, which joined to form polypeptides and proteins. Simple sugar units combined to form polysaccharides ; fatty acids and glycerol to form fats ; sugars, nitrog enous bases and phosphates combined into nucleotides which polymerized into nucleic acids in the ancient oceans .

Question

Options

Solution

More Evolution Questions