Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
How does the amount of energy produced from fermentation compare with that of aerobic respiration?
A
Fermentation does not produce any energy.
B
Fermentation produces more energy than aerobic respiration.
C
Fermentation produces the same amount of energy as aerobic respiration.
D
Fermentation produces less energy than aerobic respiration.
Verified step by step guidance
1
Understand the basic concepts: Fermentation and aerobic respiration are both processes cells use to generate energy. Fermentation occurs in the absence of oxygen, while aerobic respiration requires oxygen.
Compare the pathways: In aerobic respiration, glucose is fully oxidized to carbon dioxide and water, producing a significant amount of ATP (energy currency of the cell). In contrast, fermentation results in the partial breakdown of glucose, leading to less ATP production.
Quantify the energy yield: Aerobic respiration typically yields about 36-38 ATP molecules per glucose molecule, whereas fermentation yields only about 2 ATP molecules per glucose molecule.
Consider the efficiency: The efficiency of energy production in aerobic respiration is much higher due to the complete oxidation of glucose, whereas fermentation is less efficient due to the incomplete oxidation.
Conclude the comparison: Based on the energy yield and efficiency, fermentation produces significantly less energy than aerobic respiration.