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From the point of view of early chemical...

From the point of view of early chemical evolution that preceded the origin of life on earth, the most important simple organic molecules formed were

A

sugars and amino acids

B

glycerol and fatty acids

C

puriness and pyrimidines

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
D
The early inorganic molecules interacted and produced simple organic molecules such as simple sugars (e.g., ribose, deoxyribose, glucose, etc.), nitrogenous bases (e.g., purines, pyrmidines), amino acids, glycerol, fatty acids, etc. `CH_(4) +CO_(2)+H_(2)O to ` Sugars + Glycerol + Fatty acids
`CH_(4)+HCN+NH_(3)+H_(2)O to` Purines + pyrimidines
`CH_(4) +NH_(3)+CO_(2)+H_(2)O to` Amino acids
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Knowledge Check

  • Organic compounds evolved on earth and required for origin of life were

    A
    proteins and nucleic acids
    B
    Urea and amino acids
    C
    Proteins and amino acids
    D
    Urea and nucleic acids

  • From evolution point of view, the tissue which originated first was

    A
    Connective tissue
    B
    Epithelial tissues
    C
    Muscular tissue
    D
    Nervous tissue

  • Which hypothesis on the origin of life states thjat the proteins, lipids and other complex organic molecules are formed when energy from the sun and other sources causes chemical reactions among gases in earth's prehistoric atmosphere?

    A
    Self-replicating molecues
    B
    Biogenesis
    C
    Miller and Urey's experiment
    D
    Spontaneous generation

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