Question

question 46
the process that breaks down glucose in the cell to make atp is
o a. krebs cycle
o b. calvin cycle
o c. lactic acid fermentation
o d. heat
o e. glycolysis

Explanation:

• Kreb's cycle: It is part of aerobic respiration but occurs after the initial breakdown of glucose.
• Calvin cycle: It is involved in photosynthesis (fixing carbon dioxide) and not in glucose breakdown for ATP.
• Lactic acid fermentation: It is an anaerobic process that occurs after glycolysis (when oxygen is limited) and is not the main process of breaking down glucose to make ATP (produces a small amount compared to full aerobic breakdown which starts with glycolysis).
• Heat: Heat is a by - product of metabolic processes, not the process itself for breaking down glucose to make ATP.
• Glycolysis: It is the first step in both aerobic and anaerobic breakdown of glucose in the cell. In glycolysis, glucose (a 6 - carbon molecule) is broken down into two 3 - carbon pyruvate molecules, and a small amount of ATP (net gain of 2 ATP) is produced. It is the initial and essential process for glucose breakdown to make ATP.

Answer:

e. glycolysis