Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 6.5, Problem 1TYK
Summary Introduction
Introduction:
The glucose molecule is converted into the pyruvate during the process of glycolysis. This breakdown of glucose into pyruvate occurs in the cytosol of eukaryotes. The pyruvate is then transported to the mitochondrial matrix where they are oxidized.
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Which of the following compounds involved in aerobic respiration can originate from the breakdown of proteins? Select all that apply.
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Pyruvate can be converted into two different products depending on whether oxygen is readily available or not.
Under conditions of strenuous activity (anaerobic) the product is:
аcetyl CoA
pyruvate
lactate
CO2
Which of the following reactions/ pathways does NOT produce NADH?
Payoff phase of glycolysis
Oxidative deamination of glutamine
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Conversion of pyruvate to acetyl CoA
Chapter 6 Solutions
Principles of Biology
Ch. 6.1 - Which do you think has more entropy, an NaCl...Ch. 6.1 - Prob. 1TYKCh. 6.1 - Prob. 2TYKCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 3CCCh. 6.2 - Prob. 1TYKCh. 6.2 - An inhibitor raises the Km for an enzyme but has...Ch. 6.3 - Prob. 1CCCh. 6.3 - Prob. 1TYK
Ch. 6.3 - Prob. 2TYKCh. 6.3 - Prob. 3TYKCh. 6.4 - Prob. 1CCCh. 6.4 - Prob. 1BCCh. 6.4 - Prob. 1TYKCh. 6.4 - Prob. 2TYKCh. 6.4 - Prob. 2CCCh. 6.5 - Prob. 1TYKCh. 6.6 - During the citric acid cycle, what happens to...Ch. 6.7 - Prob. 1CCCh. 6.7 - Prob. 2CCCh. 6.7 - Prob. 3CCCh. 6.7 - Prob. 1TYKCh. 6.7 - Prob. 2TYKCh. 6.7 - Prob. 3TYKCh. 6.8 - Prob. 1CCCh. 6.8 - Prob. 1TYKCh. 6 - According to the second law of thermodynamics....Ch. 6 - Reactions that release free energy are exergonic....Ch. 6 - Prob. 3TYCh. 6 - Prob. 4TYCh. 6 - Prob. 5TYCh. 6 - Prob. 6TYCh. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Prob. 10TYCh. 6 - Describe the mechanism and purpose of feedback...Ch. 6 - What causes the rotation of the y subunit of ATP...Ch. 6 - PRINCIPLES A principle of biology is that living...Ch. 6 - Discuss how life can maintain its order in spite...Ch. 6 - Prob. 2CBQ
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- Which one of the following pairs of compounds are joined together to conserve carbon in the glyoxylate cycle? Acetyl-CoA + Glyoxylate Oxaloacetate + Malate CO2 + CO2 Pyruvate + CO2 Ribulose-1,5-Bisphosphate + CO2 O O O O Carrow_forwardWhich 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_forwardThe enzyme pyruvate dehydrogenase complex oxidises pyruvate by removing: He+ Ha+ H+ CI-arrow_forward
- Taking into consideration glycolysis, the pyruvate dehydrogenase complex and the citric acid cycle, how many NAD+ molecules are reduced from a single molecule of dihydroxyacetone phosphate? 4 NAD+ are reduced 5 NAD+ are reduced 8 NAD+ are reduced 10 NAD+ are reduced None of the above answers are correctarrow_forwardWhich of the following should inhibit the PDC by feedback inhibition? Choose all that apply. NADH NAD+ CoASH Acetyl-CoA Pyruvate Glucose 6-phosphatearrow_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_forward
- In the conversion of G3P into pyruvate at the end of glycolysis, which of the following does NOT occur? electron carriers are reduced inorganic phosphate is added to the carbon structure substrate level phosphorylation resulting in ADP à ATP carbon is released as CO2arrow_forwardThe "intermediate step" of respiration is also called pyruvate oxidation and pyruvate decarboxylation. Which statement about the intermediate step is FALSE? O It occurs in the cytosol of prokaryotes. O It converts pyruvate into acetyl-CoA. O It generates 1 molecule of NADH per molecule of pyruvate. O It releases 1 molecule of CO2 per molecule of pyruvate. O It generates 1 molecule of ATP per molecule of pyruvate.arrow_forwardWhich of the following is an important enzyme involved in the synthesis of cholesterol from isoprene pyrophosphate? thiolase pyruvate decarboxylase pyruvate dehydrogenase HMG-CoA reductase glucose oxidasearrow_forward
- The co-enzyme that helps in the removal of carbon dioxide from pyruvate during the PDH mechanism is Pyruvate oxidative decarboxylase CoA NAD+ Thiamine Pyrophosphatearrow_forwardWhich of the following events does not occur during pyruvate processing (pyruvate oxidation)? One carbon atom of each pyruvate is oxidized to carbon dioxide. NAD+ coenzyme is reduced to NADH. The remaining two carbon atoms of pyruvate (acetyl unit) reacts with coenzyme A to produce acetyl CoA. FAD coenzyme receives two hydrogen atoms to produce FADH2.arrow_forwardWhich Molecule Is Being Reduced In The Reation Pyruvate (C3H4O3) + NADH+H+ -> Lactate (C3H6O3)+NAD+arrow_forward
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