객관식
Which of the following best describes the impact of cellular respiration on other organisms and the environment?
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8. Respiration
Introduction to Aerobic Cellular Respiration
객관식
Which of the following correctly represents the sequence of major stages in cellular respiration as the body uses food to produce energy?
A
Citric Acid Cycle → Glycolysis → Electron Transport Chain
B
Glycolysis → Citric Acid Cycle → Electron Transport Chain
C
Electron Transport Chain → Glycolysis → Citric Acid Cycle
D
Glycolysis → Electron Transport Chain → Citric Acid Cycle
검증된 단계별 안내1
Understand the process of cellular respiration: Cellular respiration is the process by which cells convert glucose into energy in the form of ATP. It occurs in three major stages: Glycolysis, the Citric Acid Cycle (also known as the Krebs Cycle), and the Electron Transport Chain (ETC).
Step 1: Glycolysis - This is the first stage of cellular respiration and occurs in the cytoplasm. During glycolysis, one molecule of glucose (C₆H₁₂O₆) is broken down into two molecules of pyruvate, producing a small amount of ATP and NADH.
Step 2: Citric Acid Cycle - After glycolysis, the pyruvate molecules are transported into the mitochondria, where they are converted into Acetyl-CoA. The Citric Acid Cycle then processes Acetyl-CoA to produce more NADH, FADH₂, and a small amount of ATP.
Step 3: Electron Transport Chain (ETC) - The NADH and FADH₂ molecules generated in the previous stages donate electrons to the ETC, which is located in the inner mitochondrial membrane. This process drives the production of a large amount of ATP through oxidative phosphorylation.
Sequence of stages: Based on the above steps, the correct sequence of major stages in cellular respiration is Glycolysis → Citric Acid Cycle → Electron Transport Chain.
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