Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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- in 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_forwardThe net ATP produced during a β-oxidation process is always less than two ATP because An ATP is converted to ADP during fatty acid activation ATP is consumed during acyl CoA shuttling An ATP is converted to AMP during fatty acid activation A NADH is produced in the cytosolarrow_forwardThe most regulated enzyme in glycolysis is a Hexokinase b G3P Dehydrogenase c Pyruvate Kinase d Phosphofructokinasearrow_forward
- The metabolic function of the pentose phosphate pathway is: act as a source of ADP biosynthesis provide intermediates for the citric acid cycle. generate NADPH and pentoses for the biosynthesis of fatty acids and nucleic acids. O participate in oxidation-reduction reactions during the formation of H2O.arrow_forwardWhich of the following conditions must be met within the cell In order for the enzyme pyruvate carboxylase to be activated? Select all that apply. NADP+ levels must be high Phosphofructokinase must be in the activated R-state Beta-oxidation of fatty acids happening in the mitochondrial matrix AMP levels must be high ATP levels must be higharrow_forwardin the mitochondria pyruvate is converted into acetyl CoA so then acetyl CoA make its way to the TCA cycle and produces energy sources for oxidative phosphorylation. Pyruvate oxidation transforms pyruvate, a three-carbon molecule, into acetyl, a two-carbon molecule linked to Coenzyme A, generating NADH and releasing one carbon dioxide molecule in process the citric acid cycle is fundamental because runs on acetyl CoA as its fuel. i need more explanantionarrow_forward
- Which steps are part of the energy investing half of glycolysis? OPhosphorylation Isomerization Second Phosphorylation Cleavage Conversion of DHAP into GADP O Dephosphorylation Phosphate transfer O Dehydration Second dehydrationarrow_forwardThe citric acid cycle will be most active when the ATP/ADP ratio is high. True or falsearrow_forwardWhich of the following enzymes CANNOT be found in the skeletal muscle? Glucose-6-phosphatase Glycogen synthase Glycogen phosphorylase Adenylyl cyclase Hexokinase Which of the following processes do NOT produce CO2? (1) Fatty acid synthesis (2) Oxidative deamination(3) Preparatory phase of glycolysis (4) Pentose phosphate pathway (1) and (2) only (2) and (3) only (2) and (4) only (1), (3) and (4) only (1), (2), (3) and (4) _______________ is an intermediate metabolite linkage between carbohydrate and fat metabolism. A. MalateB. CitrateC. Acetyl-CoA D. AspartateE. α-ketoglutarate ______________ transfers carnitine from mitochondrial matrix to cytoplasm during the transport of fatty acid to mitochondria. Carnitine acyltransferase I CarnitineacyltransferaseII Transaminase Translocase Citric acid shuttlearrow_forward
- Which of the following is incorrect about the citric acid cycle? O a. It is activated by ADP O b. It is activated by NADH O c. It is regulated Od. None; all the other choices are correctarrow_forwardADP and inorganic phosphate are provided for oxidative phosphorylation via an: ADP-ATP antiport and a proton-phosphate symport in the inner mitochondrial membrane. ADP-ATP antiport and a proton-phosphate symport in the outer mitochondrial membrane. O ADP-ATP antiport in the inner mitochondrial membrane and a phosphate uniport in the mitochondrial intermembrane space. ADP-phosphate symport in the inner mitochondrial membrane.arrow_forwardWhich of the following is the third step of Citric Acid Cycle? Select one: a. Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH b. Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide c. Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH d. alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADH e. Succinate is oxidized to become fumarate forming FADH2 f. Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate) g. Citrate is rearranged to become Isocitrate h. Malate is oxidized to become oxaloacetate forming NADH i. Fumarate is combined with water to become Malatearrow_forward
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