Laboratory Manual for Anatomy & Physiology
5th Edition
ISBN: 9780321885074
Author: Elaine N. Marieb
Publisher: Benjamin Cummings
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Textbook Question
Chapter 23, Problem 18RQ
Pyruvic acid is a product of glycolysis, but it is not the substance that joins with the pickup molecule to enter the citric acid cycle. What is that substance?
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Pyruvic acid is a product of glycolysis, but it is not the substance that joins with the pickup molecule to enter the citric acid cycle. What is that substance?
Two molecules of what compound are produced by glycolysis? Does this molecule enter the citric acid cycle?
The end product of glycolysis, pyruvate, cannot enter as such into the citric acid cycle. Which process converts this C3 compound to a C2 compound?
Chapter 23 Solutions
Laboratory Manual for Anatomy & Physiology
Ch. 23 - Prob. 1CYUCh. 23 - Why is it important to include cellulose in a...Ch. 23 - How does the body use triglycerides? Cholesterol?Ch. 23 - Prob. 4CYUCh. 23 - Prob. 5CYUCh. 23 - Prob. 6CYUCh. 23 - Prob. 7CYUCh. 23 - What is a redox reaction?Ch. 23 - How are anabolism and catabolism linked by ATP?Ch. 23 - What is the energy source for the proton pumps of...
Ch. 23 - Briefly, how do substrate-level and oxidative...Ch. 23 - What happens in glycolysis if oxygen and pyruvic...Ch. 23 - 13. What two major kinds of chemical reactions...Ch. 23 - What name is given to the chemical reaction in...Ch. 23 - Prob. 15CYUCh. 23 - Prob. 16CYUCh. 23 - Prob. 17CYUCh. 23 - What are the products of beta oxidation?Ch. 23 - Prob. 19CYUCh. 23 - Prob. 20CYUCh. 23 - Which three organs or tissues are the primary...Ch. 23 - Prob. 22CYUCh. 23 - Which hormone is glucagons main antagonist?Ch. 23 - Which event increases both glucagon and insulin...Ch. 23 - Prob. 25CYUCh. 23 - Prob. 28CYUCh. 23 - What is the most important long-term regulator of...Ch. 23 - Prob. 30CYUCh. 23 - Prob. 31CYUCh. 23 - Prob. 32CYUCh. 23 - Prob. 33CYUCh. 23 - Prob. 34CYUCh. 23 - Prob. 26CYUCh. 23 - Prob. 27CYUCh. 23 - Which of the following reactions would liberate...Ch. 23 - The formation of glucose from glycogen is (a)...Ch. 23 - The net gain of ATP from the complete metabolism...Ch. 23 - Which of the following best defines cellular...Ch. 23 - What is formed during aerobic respiration when...Ch. 23 - Prob. 6RQCh. 23 - Prob. 7RQCh. 23 - Which of the following is not a function of the...Ch. 23 - Prob. 9RQCh. 23 - A person has been on a hunger strike for seven...Ch. 23 - Transamination is a chemical process by which (a)...Ch. 23 - Three days after removing the pancreas from an...Ch. 23 - Hunger, appetite, obesity, and physical activity...Ch. 23 - Prob. 14RQCh. 23 - Which of the following yields the greatest caloric...Ch. 23 - What is cellular respiration? What is the common...Ch. 23 - Describe the site, major events, and outcomes of...Ch. 23 - Pyruvic acid is a product of glycolysis, but it is...Ch. 23 - Prob. 19RQCh. 23 - Prob. 20RQCh. 23 - Prob. 21RQCh. 23 - Prob. 22RQCh. 23 - Prob. 23RQCh. 23 - What is meant by body energy balance, and what...Ch. 23 - Explain the effect of the following on metabolic...Ch. 23 - Prob. 26RQCh. 23 - Prob. 27RQCh. 23 -
Kyle Boulard, a 35-year-old male, is believed to...Ch. 23 - Kyle Boulard, a 35-year-old male, is believed to...Ch. 23 - Kyle Boulard, a 35-year-old male, is believed to...Ch. 23 - Kyle Boulard, a 35-year-old male, is believed to...Ch. 23 - Kyle Boulard, a 35-year-old male, is believed to...
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- The cholesterol synthesized by cells uses which component of the glycolytic pathway as a starting point? a. glucose b. acetyl CoA c. pyruvate d. carbon dioxidearrow_forwardAfter the citric acid cycle reactions run _________, one six-carbon glucose molecule has been completely broken down to CO2. a. once b. twice c. six times d. twelve timesarrow_forwardThe citric acid cycle can be divided into two stages. In one stage, carbon atoms are added and removed, and in the second stage, oxaloacetate is regenerated. Which steps of the citric acid cycle correspond to each stage?arrow_forward
- What two major roles do the citric acid cycle and glycolysis havein common?arrow_forwardThe citric acid cycle operates only when O2 is present, yet O2 is not a substrate for the cycle. Explain.arrow_forwardwhich intermediate of the citric acid cycle regulates the flow of metabolites through glycolysis, citric acid cycle, and fatty acid synthesis?arrow_forward
- After pyruvate enters the mitochondria, what would be the maximum number of ATP molecules produced from the complete oxidation of one molecule of pyruvate ?arrow_forwardTwo carbon atoms are fed into the citric acid cycle as acetyl-CoA. In what form are two carbon atoms removed from the cycle?arrow_forwardBefore pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, and combined with coenzyme A, forming acetyl CoA, carbon dioxide, and one molecule of (a) NADH (b) FADH2 (c) ATP (d) ADP (e) C6H12O6arrow_forward
- Of the 36 molecules of ATP produced by the complete metabolism of glucose, how many are produced directly in glycolysis alone, that is, before the common pathway?arrow_forwardHow many of the 30 ATP molecules produced from the complete oxidation of 1 glucose molecule are produced during glycolysis?arrow_forwardin steps 3 and 5 of the citric acid cycle, the compounds are shortended by one carbon each time. whst is the form of this one-carbon compound? what happens to it in the body?arrow_forward
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