Anatomy & Physiology
1st Edition
ISBN: 9781938168130
Author: Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher: OpenStax College
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Textbook Question
Chapter 24, Problem 14RQ
Which molecules can enter the Krebs cycle?
- chylomicrons
- acetyl CoA
- mono glycerides
ketone bodies
Expert Solution & Answer
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Check out a sample textbook solutionStudents have asked these similar questions
Monosaccharides enter central metabolism at
Glyoxylate shunt
Oxidative phosphorylation
Glycolysis
Oxidative phosphorylation TCA Cycle
What molecule forms when Acetyl-CoA enters the Krebs cycle?
ATP
pyruvic acid
glucose
citric acid
isocitrate
Which of the following doesn’t occur in the transition reaction?
Pyruvic acid is oxidized
Pyruvic acid is decarboxylated
Pyruvic acid is reduced
Acetic acid attaches to coenzyme A to form Acetyl CoA
Chapter 24 Solutions
Anatomy & Physiology
Ch. 24 - A monosaccharide is formed from a polysaccharide...Ch. 24 - If anabolic reactions exceed catabolic reactions,...Ch. 24 - When NAD becomes NADH, the coenzyme has been...Ch. 24 - Anabolic reactions use energy by ________. turning...Ch. 24 - Glycolysis results in the production of two...Ch. 24 - The Krebs cycle converts ________ through a cycle...Ch. 24 - Which pathway produces the most ATP molecules?...Ch. 24 - Aerobic cellular respiration results in the...Ch. 24 - When NAD+ becomes NADH, the coenzyme has been...Ch. 24 - Lipids in the diet can be ________. broken down...
Ch. 24 - The gallbladder provides ________ that aid(s) in...Ch. 24 - Triglycerides are transported by chylomicrons...Ch. 24 - Which molecule produces the most ATP?...Ch. 24 - Which molecules can enter the Krebs cycle?...Ch. 24 - Acetyl CoA can be converted to all of the...Ch. 24 - Digestion of proteins begins in the ________ where...Ch. 24 - Amino acids are needed to ________. build new...Ch. 24 - If an amino acid is not used to create new...Ch. 24 - During the absorptive state, glucose levels are...Ch. 24 - Staivation sets in after 3 to 4 days without food....Ch. 24 - The postabsorptive state relies on stores of...Ch. 24 - The bodys temperature is controlled by the...Ch. 24 - Fever increases the body temperature and can...Ch. 24 - The heat you feel on your chair when you stand up...Ch. 24 - A crowded room warms up through the mechanism of...Ch. 24 - A deficiency in vitamin A can result in ________....Ch. 24 - Rickets results in improper bone development in...Ch. 24 - Consuming which type of food will help the most...Ch. 24 - Which of the following is stored in the body?...Ch. 24 - Describe how metabolism can be altered.Ch. 24 - Describe how Addisons disease can be treated.Ch. 24 - Explain how glucose is metabolized to yield ATP.Ch. 24 - Insulin is released when food is ingested and...Ch. 24 - Discuss how carbohydrates can be stored as fat.Ch. 24 - If a diabetics breath smeLls like alcohol, what...Ch. 24 - Amino acids are not stored in the body. Describe...Ch. 24 - Release of trypsin and chymotrypsin in their...Ch. 24 - In type II diabetes, insulin is produced but is...Ch. 24 - Ketone bodies are used as an alternative source of...Ch. 24 - How does vasoconstriction help increase the core...Ch. 24 - How can the ingestion of food increase the body...Ch. 24 - Weight loss and weight gain are complex processes....Ch. 24 - Some low-fat or non-fat foods contain a large...
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- Which of the following is NOT produced during the oxidative phase of the pentose phosphate shunt? a Ribulose-5-Phosphate b Glyceraldehyde-3-phosphate c CO2 d NADPHarrow_forwardIf metabolites from fats, amino acids and lactate are to be converted to glucose, which of the following is a common metabolic precursor? oxaloacetate acetyl CoA alpha-ketoglutarate pyruvate succinyl CoAarrow_forwardArrange the following pathways in order of their occurrence as source of energy for the body during fasting and starvation: 1. glycogenolysis 2. lipid catabolism 3. gluconeogenesis 4. ketogenesisarrow_forward
- Which of the followings is not function of peroxisomes? Catalyze the transfer of amino groups from amino acids to keto acids Detoxification of H202 Oxidation of very long branched chain fatty acids Calcium storage and releasearrow_forwardThe body uses carbohydrates, fats, and proteins to fuel all its activities. These fuels each start down a different path, but they all ultimately end up providing energy by going through the TCA cycle and electron transport chain. Identify which compounds can be formed during metabolism from each fuel source. Compounds Formed During Metabolism Glucose Fuel Sources Glycerol Fatty acids Glucose Glucogenic amino acids Ketogenic amino acids Acetyl COA Pyruvate Lactate O B U 0 040 O O D 0 0000 1 200000 Fatarrow_forwardwhy are ketones formed during starvationarrow_forward
- What glycolytic intermediate is fructose converted to in the liver, such that it can be utilized in glycolysis? Glyceraldehyde 3-phosphate Glucose 6-phosphate Fructose 6-phosphate Fructose 1-phosphatearrow_forwardUnder anaerobic conditions, the major metabolite produced in the liver for export is which of the following? glucose lactate pyruvate fructose alaninearrow_forwardWhich of the following events does not occur during Krebs Cycle? Citrate synthase catalyzers the transfer of an acetyl group from acetyl coenzyme A to oxaloacetate to form citrate. Isocitrate dehydrogenase converts citrate to its isomer isocitrate. A carbon dioxide is released when alpha-ketoglutarate is oxidized to succinyl coenzyme A. The energy released from the conversion of succinyl coenzyme A to succinate is used to transfer a phosphate group to ADP to form ATP. During Krebs Cycle, succinate is oxidized to fumarate which is coupled to the reduction of FAD to FADH2. During electron transport, the electrons from FADH2 are transferred to coenzyme Q. Which of the following catalyzes these reactions? NADH dehydrogenase Succinate dehydrogenase FADH2 hydrogenase NADH hydrogenase reductasearrow_forward
- What enzyme will not be used if the oxidative portion of the pentose phosphate pathway is operating to produce ribose 5-phosphate? Ribulose 5-phosphate isomerase 6-phosphoglucono-lactonase 6-phosphogluconate dehydrogenase Transaldolasearrow_forwardchoose the metabolic pathway being described in the statement choices: Digestion Glycolysis Formation of Acetyl CoA Krebs Cycle ETC Reactions Glycogenesis Glycogenolysis Gluconeogenesis produced reduced coenzymes enter another aerobic cellular respiration biochemical hub of cells of all primary metabolites catalyzed primarily by glycogen synthase release of first CO2 in cellular respiration breaking of glycosidic linkages of glycogen absorption of glucose in the blood stream hydrolysis of dissacharide series of release of small amount of energy reducing oxygen to water requires pumping of hydrogen ions catalyzed initially by glycogen phosphorylasearrow_forwardWhat glycolytic intermediate is fructose converted to in the muscle, such that it can be utilized in glycolysis? Glucose 6-phosphate Fructose 6-phosphate Glyceraldehyde 3-phosphate Dihydroxyacetone phosphatearrow_forward
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