Multiple Choice
Which of the following describes a primary function of both lactic acid fermentation and alcohol fermentation?
5514
views
34
rank
8. Respiration
Fermentation & Anaerobic Respiration
Multiple Choice
Muscle tissues make lactate from pyruvate to do which of the following?
A
Speed up the rate of glycolysis
B
Get rid of pyruvate produced by glycolysis
C
Utilize the energy in pyruvate
D
Produce additional CO2
E
Regenerate NAD+
Verified step by step guidance1
Understand the context: During anaerobic respiration, muscle cells convert pyruvate into lactate when oxygen is scarce.
Recognize the role of NAD+: In glycolysis, NAD+ is reduced to NADH. For glycolysis to continue, NAD+ must be regenerated.
Identify the process: The conversion of pyruvate to lactate is catalyzed by lactate dehydrogenase, which oxidizes NADH back to NAD+.
Connect the dots: By regenerating NAD+, the cell can maintain glycolysis, allowing for continued ATP production under anaerobic conditions.
Conclude the purpose: The primary reason for converting pyruvate to lactate is to regenerate NAD+, not to produce additional CO2 or utilize energy in pyruvate.
Related Videos
Related Practice
