BIOCHEMISTRY W/1 TERM ACHEIVE ACCESS
9th Edition
ISBN: 9781319425746
Author: BERG
Publisher: MAC HIGHER
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Question
Chapter 20, Problem 25P
Interpretation Introduction
Interpretation:
The enzyme which is the regulatory enzyme in the oxidative phase of the pentose phosphate pathway is to be identified.
Concept introduction:
The
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Match the coenzymes and/or substrates with their corresponding glycolytic enzymes. Note that an enzyme can match with more than one coenzyme or substrate in the list.
ATP
NAD+
Dihydroxyacetone phosphate
A.
Glucose 1-dehydrogenase
B.
Phosphofructokinase-1
C.
Glyceraldehyde 3-phosphate dehydrogenase
D.
ATPase
E.
Triose phosphate isomerase
The rate limiting and committed step of the pentose phosphate pathway is catalyzed by which of the following enzymes?
A.
Glucose-6-phosphate dehydrogenase
B.
Hexokinase
C.
6-Phosphogluconate dehydrogenase
D.
Transketolase
For the pyruvate dehydrogenase complex, please identify the oxidation states of every atom and prove whether the reaction is oxidized or not
Pyruvate --> Hydroxyethyl TPP
B. Hydroexythl TPP --> Acetyl Lipoylysine
C. Acetyl Lipoylysine --> Acetyl-CoA
Chapter 20 Solutions
BIOCHEMISTRY W/1 TERM ACHEIVE ACCESS
Ch. 20 - Prob. 1PCh. 20 - Prob. 2PCh. 20 - Prob. 3PCh. 20 - Prob. 4PCh. 20 - Prob. 5PCh. 20 - Prob. 6PCh. 20 - Prob. 7PCh. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Prob. 10P
Ch. 20 - Prob. 11PCh. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - Prob. 14PCh. 20 - Prob. 15PCh. 20 - Prob. 16PCh. 20 - Prob. 17PCh. 20 - Prob. 18PCh. 20 - Prob. 19PCh. 20 - Prob. 20PCh. 20 - Prob. 21PCh. 20 - Prob. 22PCh. 20 - Prob. 23PCh. 20 - Prob. 24PCh. 20 - Prob. 25PCh. 20 - Prob. 26PCh. 20 - Prob. 27PCh. 20 - Prob. 28PCh. 20 - Prob. 29PCh. 20 - Prob. 30PCh. 20 - Prob. 31PCh. 20 - Prob. 32PCh. 20 - Prob. 33PCh. 20 - Prob. 34PCh. 20 - Prob. 35PCh. 20 - Prob. 36PCh. 20 - Prob. 37PCh. 20 - Prob. 38PCh. 20 - Prob. 39PCh. 20 - Prob. 40PCh. 20 - Prob. 41PCh. 20 - Prob. 42PCh. 20 - Prob. 43PCh. 20 - Prob. 44PCh. 20 - Prob. 45PCh. 20 - Prob. 46PCh. 20 - Prob. 47PCh. 20 - Prob. 48P
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- A. Identify different types of organic reaction mechanims in the followingmetabolic pathways.1. Catabolism of triacylglycerols- beta-oxidation pathway2. Biosynthesis of fatty acids from Acetyl CoA3. Glycolysis (from glucose to two molecules of pyruvate)4. Conversion of Pyruvate to Acetyl CoA5.Citric acid cycle6. Gluconeogensis pathway (pyruvate to glucose) B. Identify at most 5 organic reactions for each metabolic pathway.arrow_forwardMatch the item to each step in the Krebs Cycle. Write your answers on the Google Form. isocitrate f. Oxaloacetate a. b. succinate g. Sulfur NAD* h. a-ketoglutarate fumarate C. d. malate i. succinyl-CoA j. ATP e. What molecule combines with acetyl-CoA and then releases CoA? 66. What molecule is oxidized by NAD+ to become a 5- carbon compound? 67. What molecule is oxidized by NAD+ to become a 4- carbon compound? 68. 69. What 4-carbon molecule is formed when combined with COA? 70. What molecule is produced when CoA is released? 71. What molecule is formed when GTP is oxidized to form GDP? 72. What atom is the bridge that connects to CoA? 73. What molecule is formed when FAD is reduced? 74. What molecule is formed with the addition of H,O? 75. Which molecule must be reduced so that oxaloacetate is formed? Match the product to the process. Write your answer on the Google Form. GTP f. CO, а. b. phosphofructinase NADH* + CO, g. Citrate formed. c. h. ATP d. Co-A i. Isocitrate HO j- Pyruvate e.…arrow_forwardMatch the description with the correct enzyme : A. Glucose 6-phosphate dehydrogenase Serves a as a direct link between citric acid cycle and electron transport chain B. Succinate dehydrogenase v Uses alpha-keto carboxylic acid as a substrate C. Alcohol dehydrogenase Does not contribute electron carriers to oxidative phosphorylation D. NADH dehydrogenase E. Isocitrate dehydrogenase F. Pyruvate dehydrogenase complexarrow_forward
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