Concept explainers
To determine:
How many
Introduction:
In the case of absence of glucose and glycogen, cells that still require ATP undergo fatty acid oxidation. Cells oxidize fatty acids to
To determine:
How many cycles of
Introduction:
In the case of absence of glucose and glycogen, cells that still require ATP undergo fatty acid oxidation. Cells oxidize fatty acids to
To determine:
How many ATP are generated from the complete oxidation of capric acid.
Introduction:
In the case of absence of glucose and glycogen, cells that still require ATP undergo fatty acid oxidation. Cells oxidize fatty acids to
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Chapter 12 Solutions
EBK LABORATORY MANUAL FOR GENERAL, ORGA
- Short answer questions. You must show work indicating production or consumption of molecules such as ATP or NADH in the various pathways involved in these questions. Consider that a molecule of alanine can be converted to pyruvate by an oxidation reaction that produces one NADH. If the liver is to make a molecule of glucose from alanine, how many molecules of alanine are required? How many ATP equivalents are required?arrow_forwardPlease do both.arrow_forwardFor each scenario give total number of molecules obtained from cycle.arrow_forward
- 10. The breakdown of glycogen to glucose is called O a. glycogenesis Ob. gluconeogenesis O c. glycogenolysis d. hydrolysisarrow_forwardConsider the docosanoic acid, C21H43CO2H Label the alpha and beta Carbons. Draw each acyl CoA derived from this fatty acid. How many acetyl Co A molecules are formed by complete beta-oxidation? How many cycles of beta-oxidation are needed for complete oxidation? How many molecules of ATP are formed from the complete catabolism of this fatty acid? Show the complete computation. How many moles of ATP per gram of fatty acid is formed from the complete catabolism of the given fatty acid? What is the molar mass of the given fatty acid?arrow_forwardCompare the structures of the fatty acids A and B below. Based on your conceptual understanding of the ATP yields from B-oxidation, which of these fatty acids do you think will yield more ATP/molecule? (I'm not asking for actual calculations in this question; rather, describe in general how the structural features of fatty acids impact overall ATP yield). a) What structural feature(s) of A suggests that it may yield more ATP than B? b) What structural feature(s) of A suggests that it may yield less ATP than B? A OH B OH Now, let's test those predictions for question # 1 above. For each of the fatty acids above calculate the net yield of ATP for its complete oxidation (to CO₂) via B-oxidation, the citric acid cycle, e transport and oxidative phosphorylation. Assume that both A and B are oxidized starting from the free acids, and that 1 NADH yields 2.5 ATP and 1 FADH2 yields 1.5 ATP (also assume that NADPH is not a substrate for electron transport).arrow_forward
- How many electron carrier molecules (both NADH and FADH₂) are made per glucose put in to glycolysis? How many electron carrier molecules (both NADH and FADH₂) are made per pyruvate put in to the Krebs Cycle? How many electron carrier molecules (both NADH and FADH₂) are made by the Krebs Cycle per glucose consumed by the organism? How many electron carrier molecules in total (both NADH and FADH₂) have been made from a single glucose after both glycolysis and the Krebs Cycle? How many electrons are being carried from glucose at this point (Hint: 2 per molecule)?arrow_forwardOrder the steps of the endogenous pathway starting with VLDL in the liver. Question 99 options: excess LDL taken up by receptors in the liver LDL circulates to deliver cholesterol to peripheral cells After a meal, VLDL in liver packaged with trigs and cholesterol and sent into circulation IDL transported to liver and broken down into LDL VLDL interacts with LPL to release its fatty acids. Becomes IDLarrow_forwardThe role of oxygen in aerobic respiration is to A. form water that is the medium of all chemical reactions B. combine with free electrons and hydrogen ions from the electron transport chain C. provide transport of electrons from the cystol across the inner membrane of mitochondria D. combine with carbon to form carbon dioxidearrow_forward
- In the first step of citric acid cycle, oxaloacetate, 4C, combines with Acetyl CoA, 2C.. Oxaloacetate (4C) is formed again in the last step of the citric acid cycle. During the citric acid cycle, how many decarboxylation reactions must occur per turn of the citric acid cycle? 04 01 2 3 05arrow_forwardDuring the overall process of glycolysis, in which of the following occurs for each glucose molecule processed. net loss of two ATP molecules net loss of four ATP molecules net gain of two ATP molecules net gain of four ATP moleculesarrow_forwardWould you describe metabolic pathways inherently wasteful or inherently economical and why?arrow_forward
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