Final answer:
The statement is true; carbon dioxide is produced as waste during the Krebs cycle, which is a step in cellular respiration integral for energy production in cells.
Step-by-step explanation:
Carbon dioxide is indeed an indication that cells are discharging waste during the Krebs cycle, making the statement True. The Krebs cycle, also known as the citric acid cycle or TCA cycle, is a part of cellular respiration where carbon atoms from acetyl CoA are released as carbon dioxide. The removal of a carboxyl group from pyruvate, which involves the pyruvate dehydrogenase complex, releases carbon dioxide as a byproduct of the reaction. Furthermore, the Krebs cycle is essential for harvesting the extractable energy from glucose and converts it into forms that the cell can use for work.
It's important to note that the production of CO₂ is a natural part of cellular metabolism. Cells use aerobic respiration to release energy by metabolizing carbohydrates in the presence of oxygen. This process includes the Krebs cycle and the electron transport chain, both crucial for cellular energy production.
In summary, CO₂ production is a critical part of the citric acid cycle, and it is transported as bicarbonate in the blood from the tissues with high metabolic rates to the lungs where it is ultimately exhaled.