Which of the following are the main products of the Krebs Cycle?

• A. ATP, NADH, and FADH2
• B. Pyruvate and lactate
• C. Glucose and oxygen
• D. Carbon dioxide and water

Answer: (A)

Verified step by step guidance

1. Understand that the Krebs Cycle, also known as the Citric Acid Cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats, and proteins into carbon dioxide.
2. Recognize that the main purpose of the Krebs Cycle is to produce high-energy electron carriers, which are used in the electron transport chain to generate ATP.
3. Identify the main products of the Krebs Cycle: ATP, NADH, and FADH2. These molecules are crucial for cellular respiration as they carry electrons to the electron transport chain.
4. Note that carbon dioxide is also produced as a byproduct of the Krebs Cycle, but it is not a high-energy molecule like ATP, NADH, or FADH2.
5. Eliminate the incorrect options: Pyruvate and lactate are involved in anaerobic respiration, glucose and oxygen are reactants in cellular respiration, and carbon dioxide and water are final products of cellular respiration, not specifically the Krebs Cycle.