Cellular respiration that proceeds without oxygen is called anaerobic respiration. Then, about 2 or 3 billion years ago, oxygen was gradually added to the atmosphere by early photosynthetic bacteria (cyanobacteria). After that, living things could use oxygen to break down glucose and make ATP.
Without oxygen, organisms can split glucose into just two molecules of pyruvate. This releases only enough energy to make two ATP molecules. With oxygen, organisms can break down glucose all the way to carbon dioxide. This releases enough energy to produce up to 38 ATP molecules.
cellular respiration that proceeds without oxygen is called anaerobic respiration.Then about 2 to 3 billion years ago,oxygen was gradually added to the atmosphere by early photosynthetic bacteria (cyanobacteria).
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Answer:
Cellular respiration that proceeds without oxygen is called anaerobic respiration. Then, about 2 or 3 billion years ago, oxygen was gradually added to the atmosphere by early photosynthetic bacteria (cyanobacteria). After that, living things could use oxygen to break down glucose and make ATP.
Without oxygen, organisms can split glucose into just two molecules of pyruvate. This releases only enough energy to make two ATP molecules. With oxygen, organisms can break down glucose all the way to carbon dioxide. This releases enough energy to produce up to 38 ATP molecules.
Answer:
anaerobic respiration
Explanation:
cellular respiration that proceeds without oxygen is called anaerobic respiration.Then about 2 to 3 billion years ago,oxygen was gradually added to the atmosphere by early photosynthetic bacteria (cyanobacteria).
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