ANATOMY AND PHYSIOLOGY: AN INTEGRATIVE A
4th Edition
ISBN: 9781265949440
Author: McKinley
Publisher: MCG
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Chapter 3.4, Problem 18WDYL
Summary Introduction
To determine:
The four stages of
Concept introduction:
Cellular respiration is the process by which cell is able to break the glucose molecule with the help of enzymes which are biocatalysts. These are
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In some tissues, glucose 6-phosphate is oxidized to pentose phosphates by the pentose
phosphate pathway.
a) Which tissues prefer this pathway and why? Explain in detail.
b) Due to the fact that glucose 6-phosphate is also an intermediate for the glycolysis pathway,
the regulation of glycolysis and pentose phosphate pathway is very important. NADPH plays a
crucial role in partitioning of glucose 6-phosphate between glycolysis and the pentose
phosphate pathway. Explain this role of NADPH in detail.
Which steps of aerobic metabolism of pyruvate through the citric acid cycle are control points?
Which reactions of glycolysis can be reversed? Which are irreversible? What is the significance of the metabolically irreversible reactions?
Chapter 3 Solutions
ANATOMY AND PHYSIOLOGY: AN INTEGRATIVE A
Ch. 3.1 - Both the movement of Na+ down its concentration...Ch. 3.1 - Muscle contraction is an example of what form of...Ch. 3.1 - Prob. 3WDYLCh. 3.2 - Prob. 4WDYLCh. 3.2 - For a biochemical reaction that involves simple...Ch. 3.2 - What molecule is formed from exergonic reactions...Ch. 3.2 - Explain what occurs when the equilibrium is...Ch. 3.2 - Explain the effect a fever would have on chemical...Ch. 3.3 - What is the relationship of enzymes and activation...Ch. 3.3 - What is the active site of an enzyme and how does...
Ch. 3.3 - What is the mechanism of enzyme action, including...Ch. 3.3 - Explain how enzymes are generally named.Ch. 3.3 - How do changes in substrate concentration,...Ch. 3.3 - How are enzymes regulated through competitive and...Ch. 3.3 - Prob. 15WDYLCh. 3.3 - Prob. 16WDYLCh. 3.4 - Prob. 17WDYLCh. 3.4 - Prob. 18WDYLCh. 3.4 - Prob. 19WDYLCh. 3.4 - Prob. 20WDYLCh. 3.4 - Prob. 21WDYLCh. 3.4 - Prob. 22WDYLCh. 3.4 - Prob. 23WDYLCh. 3.4 - Prob. 24WDYLCh. 3.4 - Prob. 25WDYLCh. 3.4 - Prob. 26WDYLCh. 3.4 - Prob. 27WDYLCh. 3.4 - Prob. 28WDYLCh. 3 - Energy in ATP is used to power skeletal muscle...Ch. 3 - Prob. 2DYKBCh. 3 - Prob. 3DYKBCh. 3 - ATP inhibits phosphofructokinase by binding to an...Ch. 3 - All of the following are accurate about enzymes...Ch. 3 - Prob. 6DYKBCh. 3 - Prob. 7DYKBCh. 3 - All stages of cellular respiration are decreased...Ch. 3 - Prob. 9DYKBCh. 3 - Prob. 10DYKBCh. 3 - Prob. 11DYKBCh. 3 - Describe the different ways of classifying...Ch. 3 - Prob. 13DYKBCh. 3 - Describe the structure and mechanism of enzymes.Ch. 3 - Prob. 15DYKBCh. 3 - Prob. 16DYKBCh. 3 - In general terms, explain the fate of pyruvate if...Ch. 3 - Describe how oxygen becomes part of water during...Ch. 3 - Identify the source of carbon in carbon dioxide.Ch. 3 - Prob. 20DYKBCh. 3 - Prob. 1CALCh. 3 - Prob. 2CALCh. 3 - Another challenge to a patient with impaired...Ch. 3 - Prob. 4CALCh. 3 - Prob. 5CALCh. 3 - Prob. 1CSLCh. 3 - Prob. 2CSLCh. 3 - What occurs to the amount of product formed in a...
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Similar questions
- What is the process that sustains the redox balance of glycolysis under aerobic conditions?arrow_forwardHow does an increase in the ADP/ATP ratioaffect the activity of isocitrate dehydrogenase?arrow_forwardWhat are the final products of the citric acid cycle (including the transitional phase) for the breakdown of 1 glucose molecule?arrow_forward
- What step in the citric acid cycle in inhibited by fluorocitrate?arrow_forwardWith the aid of diagrams and equations, explain the biochemical processes involved in each of the following, in named cells. Start by mentioning the purpose and site of securrence of each. Go in details please. (a) Glucose-alanine cycle. (b) Oxidative phosphorylation.arrow_forwardOf 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_forward
- Although both hexokinase and phosphofructokinase catalyze irreversible steps in glycolysis and the hexokinase-catalyzed step is first, phosphofructokinase is nonetheless the pacemaker of glycolysis. What does this information tell you about the fate of the glucose 6-phosphate formed by hexokinase? Glucose 6-phosphate must be unstable and release its phosphoryl group over time. Glucose 6-phosphate must be utilized by other metabolic pathways. Glucose 6-phosphate must allosterically inhibit phosphofructokinase, but not hexokinase. Glucose 6-phosphate must be wasted when it is produced in excess.arrow_forwardIn the complete b-oxidation of stearic acid (18:0), a)how many moles of acetyl CoA are produced? ________ b)how many times would the fatty acid pass through the fatty acid spiral for complete oxidation? ________ c)what is the total ATP produced in the citric acid cycle? ________ d)how many moles of NADH are produced? ________ e)how many moles of FADH2 are produced? ________ f)how many moles of ATP are produced after all NADH are reoxidized in the respiratory chain? ________ g)how many moles of ATP are produced after all FADH2 are…arrow_forwardExplain the fate of each carbon during the completeaerobic metabolism of glucose.arrow_forward
- What is the effect of insulin on the committed step of glycolysis in the liver? Describe the mechanism by which insulin can affect the activity of this enzyme in the liver?arrow_forwardWhy is reciprocal regulation a key feature of glucose metabolism?arrow_forwardDescribe the main steps of each phase of the aerobic cellular respiration (glycolysis, pyruvate processing, the citric acid cycle, the electron transport chain, and chemiosmosis) and as well as anaerobic cellular respiration(fermentation). (bullet each step in chronological order) (draw diagrams for each phase and note the inputs and outputs)arrow_forward
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