Open Question
The glycolysis pathway is basically _______.
a. catabolic
b. amphibolic
c. anabolic
d. cyclical
12. Microbial Metabolism
Glycolysis
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Starting with one molecule of glucose, glycolysis results in the net production of which of the following sets of energy-containing products?
a) 2 NAD+, 2 pyruvate, and 2 ATP.
b) 2 NADH, 2 pyruvate, and 2 ATP.
c) 4 NADH, 2 pyruvate, and 4 ATP.
d) 6 CO2, 2 pyruvate, and 2 ATP.
A
2 NAD+, 2 pyruvate, and 2 ATP.
B
2 NADH, 2 pyruvate, and 2 ATP.
C
4 NADH, 2 pyruvate, and 4 ATP.
D
6 CO2, 2 pyruvate, and 2 ATP.
Verified step by step guidance1
Understand the process of glycolysis: Glycolysis is the metabolic pathway that converts glucose (C6H12O6) into pyruvate, releasing energy and reducing power in the form of ATP and NADH.
Identify the key outputs of glycolysis: The main products of glycolysis are pyruvate, ATP, and NADH. Specifically, one molecule of glucose is broken down into two molecules of pyruvate.
Calculate the net ATP production: Glycolysis involves substrate-level phosphorylation, resulting in the production of 4 ATP molecules. However, 2 ATP molecules are consumed during the initial steps, leading to a net gain of 2 ATP.
Determine the NADH production: During glycolysis, 2 molecules of NAD+ are reduced to form 2 molecules of NADH. This occurs during the oxidation of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate.
Summarize the net products: From one molecule of glucose, glycolysis results in the net production of 2 pyruvate, 2 ATP, and 2 NADH. This matches option b) 2 NADH, 2 pyruvate, and 2 ATP.
Related Videos
Related Practice
