No. Krebs cycle (also called the citric acid cycle or the tricarboxylic acid cycle) is responsible for the final breakdown of food molecules to form carbon dioxide, water, and energy within the cells of all animals and higher plants and in most bacteria.
Photosynthesis.
Only electron transport chain need oxygen. Other two steps do not need
The Krebs cycle
The Calvin cycle does not utilize oxygen as a reactant, so it is not aerobic.
The citric acid cycle a.k.a. the tricarboxylic acid cycle , the Krebs cycle, or the Szent-Györgyi-Krebs cycle
Photosynthesis.
The Calvin Cycle in Photosynthesis and The Krebs Cycle in Cellular Respiration. The Calvin Cycle occurs in chloroplasts and The Krebs Cycle occurs in the Mitochondria.
look in your book
The product of glycolysis that enters the Krebs cycle is pyruvate, which is converted into acetyl-CoA before entering the Krebs cycle.
Only electron transport chain need oxygen. Other two steps do not need
Kreb's cycle is part of cellular respiration, it needs nothing but oxygen and glucose. Only photosynthesis needs light.
D: all of the above Glycolysis, electron transport, and the Krebs Cycle
The Krebs cycle
Krebs cycle.
Your question is very muddled but perhaps the answer you are looking for is "Krebs cycle". See related links below.
The Krebs Cycle also known as Citric Acid Cycle.
Krebs