Multiple Choice
Which of the following definitions defines anabolism?
10. Anerobic Respiration
Breakdown and Utilization of Sugars and Fats
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Which of the following pathways causes the breakdown of glucose into pyruvate?
A
Glycolysis
B
Oxidative Phosphorylation
C
Citric Acid Cycle
D
Krebs Cycle
Verified step by step guidance1
Identify the main function of each pathway listed in the options. Glycolysis, Oxidative Phosphorylation, Citric Acid Cycle, and Krebs Cycle are all part of cellular respiration but have distinct roles.
Understand that glycolysis is the process that breaks down glucose into pyruvate, producing ATP and NADH in the cytoplasm of the cell.
Recognize that oxidative phosphorylation is the process that occurs in the mitochondria, where ATP is produced using the electron transport chain and chemiosmosis.
Note that the Citric Acid Cycle, also known as the Krebs Cycle, takes place in the mitochondria and is responsible for oxidizing acetyl-CoA to CO2, generating NADH and FADH2 for use in oxidative phosphorylation.
Conclude that glycolysis is the correct pathway for the breakdown of glucose into pyruvate, as it directly involves the conversion of glucose to pyruvate in the cytoplasm.
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