Biology, 25.09.2019 03:30, trinityparker
According to most theories about the evolution of early life on earth, the atmosphere had an abundance of ammonia, methane, and carbon dioxide, shown above. free energy from lightning could have allowed chemical reactions to occur that generated the precursors to life on earth. which inorganic molecule(s) are accurately paired with their role in the formation of organic molecules necessary to life?
a) ammonia would have provided the nitrogen found in the amine groups of amino acid and the nitrogenous bases in dna.
b) methane would have provided the hydrogen to form water, a universal solvent for chemical reactions supporting life.
c) ammonia would have provided the electrons to generate atp using an electron transport chain within the mitochondria.
d) carbon dioxide would have provided the oxygen needed to perform photosynthesis, resulting in the production of glucose.
Answers: 1
Biology, 22.06.2019 19:30, jjjxxcsenone1034
How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain? a. high-energy electrons interact with pyruvic acid to create a phosphate bond with adp, forming atp. b. high-energy electrons supply the needed energy to synthesize atp from the lower-energy adp in the electron transport chain. c. high-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with adp. d. high-energy electrons increase the temperature of adp so it easily reacts to form atp.
Answers: 2
Biology, 22.06.2019 20:30, STAYxALIVE7814
Explain the difference between mutations in sex cell and those in somatic cells
Answers: 3
According to most theories about the evolution of early life on earth, the atmosphere had an abundan...
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