The correct answer is the last statement.
If the regulatory serine is mutated to alanine, then acetyl-CoA carboxylase will get activated spontaneously and will produce malonyl-CoA. The increased concentrations of malonyl-CoA will obstruct the oxidation of fatty acids by preventing the entry of fatty acids into the mitochondria.
It is because the AMP-activated protein kinase phosphorylates the serine residues of acetyl-CoA carboxylase to inactivate it. If a mutation occurs in such residues, then the AMPL cannot phosphorylate acetyl-CoA carboxylase and this enzyme will get activated spontaneously.
In such a situation, there will be more than sufficient production of malonyl-CoA, which will inhibit the admittance of more fatty acid getting inside the mitochondria; this will indirectly prevent the oxidation of fatty acids.
Fermentation can be defined as the process that involves partial breakdown of sugar molecules into alcohol and lactic acid, in the absence of oxygen. It occurs in many bacterial cells, yeasts, and starved muscle cells. Whereas respiration involves complete breakdown of sugar molecules into carbon dioxide and water, in the presence of oxygen. It occurs in all living organisms. Respiration provides a large amount of energy as compared to fermentation as respiration produces 36 ATP molecules and 2 ATP molecules per glucose molecule.
Hence, the correct answer is 'option C - cellular respiration produces more ATP molecules than fermentation.'
Answer:
because stagnat water contains bacteria and it is the breeding place of mosquitoes
