Inquiry Into Life (16th Edition)
16th Edition
ISBN: 9781260231700
Author: Sylvia S. Mader, Michael Windelspecht
Publisher: McGraw Hill Education
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Question
Chapter 19, Problem S7.1BYB
Summary Introduction
To discuss:
The biochemical pathways used by cells to produce ATP.
Introduction:
The
Expert Solution & Answer
Explanation of Solution
There are two major processes by which the metabolism takes place –catabolism and anabolism. Catabolism is breaking down of nutrients and anabolism is building up of macromolecules. ATP is generated by catabolic pathways. The pathways which generate ATP are:
- Glycolysis: Glucose is split into 3 C compound and ATP. The end products of this reaction are pyruvate/lactate and ATP. For every glucose molecule converted into two pyruvate/lactate, 2 ATP molecules are released.
- Pyruvate dehydrogenase: 3 carbon compound pyruvate is converted to acetate and carbon dioxide. This reaction is catalyzed by the enzyme pyruvate dehydrogenase which simultaneously converts ADP to ATP.
- Beta Oxidation: Fatty acid is broken down acetyl CoA, NADH and FADH. At every step, there is the release of carbon dioxide and energy in the form of ATP. Many units of ATP is released in this process.
- Oxidative phosphorylation: This is the ultimate powerhouse of ATP generation. In this process, the NADH and FADH generated in the above pathways react with oxygen to produce water and other end products. This leads to NADH and FADH to get converted to NAD and FAD respectively, at the same time phosphorylation of ADP to ATP takes place.
Conclusion
The above pathways may look independent but in reality, the byproduct of one is used in another. All these work together to generate the ATP in the body.
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Chapter 19 Solutions
Inquiry Into Life (16th Edition)
Ch. 19.1 - Explain the macroscopic and microscopic structure...Ch. 19.1 - Prob. 2LOCh. 19.1 - Prob. 3LOCh. 19.1 - Prob. 1CYPCh. 19.1 - Prob. 2CYPCh. 19.1 - Prob. 3CYPCh. 19.1 - Prob. 4CYPCh. 19.2 - Summarize the major function of the skeleton.
Ch. 19.2 - Prob. 2LOCh. 19.2 - Prob. 3LO
Ch. 19.2 - Prob. 1QTCCh. 19.2 - Prob. 2QTCCh. 19.2 - Prob. 1CYPCh. 19.2 - Prob. 2CYPCh. 19.2 - Prob. 3CYPCh. 19.3 - Explain how antagonistic muscle groups can move...Ch. 19.3 - Prob. 2LOCh. 19.3 - Prob. 3LOCh. 19.3 - Prob. 1CYPCh. 19.3 - Prob. 2CYPCh. 19.3 - Prob. 3CYPCh. 19.3 - Define flexion, extension, abduction adduction and...Ch. 19.4 - Prob. 1LOCh. 19.4 - Prob. 2LOCh. 19.4 - Prob. 3LOCh. 19.4 - Prob. 4LOCh. 19.4 - Prob. 1QTCCh. 19.4 - Prob. 2QTCCh. 19.4 - Prob. 1CYPCh. 19.4 - Prob. 2CYPCh. 19.4 - Prob. 3CYPCh. 19.4 - Prob. 4CYPCh. 19.5 - Prob. 1LOCh. 19.5 - Prob. 2LOCh. 19.5 - Prob. 3LOCh. 19.5 - List the typical stages of a muscle twitch, as...Ch. 19.5 - Prob. 2CYPCh. 19.5 - Prob. 3CYPCh. 19.6 - Prob. 1LOCh. 19.6 - Prob. 2LOCh. 19.6 - Prob. 1CYPCh. 19.6 - Prob. 2CYPCh. 19.6 - Prob. 3CYPCh. 19 - Prob. S7.1BYBCh. 19 - Prob. S11.1BYBCh. 19 - Section 11.5 How does the musculoskeletal system...Ch. 19 - Prob. 1ACh. 19 - Prob. 2ACh. 19 - Prob. 3ACh. 19 - Prob. 4ACh. 19 - Prob. 5ACh. 19 - Prob. 6ACh. 19 - Prob. 7ACh. 19 - Prob. 8ACh. 19 - Prob. 9ACh. 19 - Prob. 10ACh. 19 - Prob. 11ACh. 19 - Prob. 12ACh. 19 - Prob. 13ACh. 19 - Prob. 14ACh. 19 - Prob. 15ACh. 19 - Prob. 1TCCh. 19 - Prob. 2TCCh. 19 - Prob. 3TC
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