Answer:
The respiratory cycle converts NADH and FADH2 into reactants that the Krebs cycle requires to function. Thus, if oxygen is not present, the respiratory cycle cannot function, which shuts down the Krebs cycle. For this reason, the Krebs cycle is considered an aerobic pathway for energy production.
Explanation:
Endocytosis is when a a cell engulfs material into the cell and exocytosis a form of waste where the cell gets rid of materials.
Biotic refers to the living factors and abiotic refers to the nonliving factors.
The blood cells will lyse (burst) because the water is hypotonic to the cells.
