Biochemistry (Looseleaf)
9th Edition
ISBN: 9781319114800
Author: BERG
Publisher: MAC HIGHER
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Chapter 21, Problem 6P
Interpretation Introduction
Interpretation:
Enzyme which is not required for glycogen synthesis should be determined.
Concept introduction:
Glycogen synthesis which is also known as glycogenesis occurs in response to the high glucose levels in the blood. In glycogen synthesis, glucose molecules are combined with polysaccharide chains and being stored for later use.
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CHOOSE THE CORRECT LETTER.
Which of the following reactions require ATP in glycolysis?A. glucose-6-phosphate to fructose-6-phosphateB. fructose-1,6-bisphosphate to glyceraldehyde-3-phosphateC. 3-phosphoglycerate to 2-phosphoglycerateD. fructose-6-phosphate to fructose-1,6-bisphosphate
1. Match the figure and the letter.
The scheme of glycogen degradation:
Enzyme:
A. Phosphoglucomutase.
B. al,6-glycosidase.
C. Glycogen phosphorylase.
D. Phosphatase.
E. Oligosaccharyltransferase.
304
Chapter 6. Carbohydrate metabolism
888
2
утвенный
cumem
H,PO,
Glucose-6-phosphate
CHOOSE THE CORRECT LETTER.
1. Which of the following molecules is NOT a ketone body?A.B-hydroxybutyrateB.acetoneC. acetyl-CoAD.acetoacetate
2.What intermediate is necessary for glycogenesis to occur?A. UTPB.glucose-1-phosphateC.UDP-glucoseD. UDP
Chapter 21 Solutions
Biochemistry (Looseleaf)
Ch. 21 - Prob. 1PCh. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10P
Ch. 21 - Prob. 11PCh. 21 - Prob. 12PCh. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Prob. 15PCh. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Prob. 18PCh. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Prob. 21PCh. 21 - Prob. 22PCh. 21 - Prob. 23PCh. 21 - Prob. 24PCh. 21 - Prob. 25PCh. 21 - Prob. 26PCh. 21 - Prob. 27PCh. 21 - Prob. 28PCh. 21 - Prob. 29PCh. 21 - Prob. 30PCh. 21 - Prob. 31PCh. 21 - Prob. 32PCh. 21 - Prob. 33PCh. 21 - Prob. 34PCh. 21 - Prob. 35PCh. 21 - Prob. 36PCh. 21 - Prob. 37PCh. 21 - Prob. 38PCh. 21 - Prob. 39PCh. 21 - Prob. 40PCh. 21 - Prob. 41PCh. 21 - Prob. 42PCh. 21 - Prob. 43PCh. 21 - Prob. 44PCh. 21 - Prob. 45PCh. 21 - Prob. 46P
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- 1d. Glucagon increases blood glucose very quickly by activating phosphorylase. This is very efficient because phosphorylase: a. Is a G-protein b. Reduces cyclic-AMP c. Has phosphodiesterase activity d. Cleave the 1,6 branches e. Acts at multiple 1,4 endings 1e. The intestinal equivalent of the hepatic 1,6 glucosidase is: a. Isomaltase b. Lactase c. Beta-lactone d. Phosphorylase A e. Invertasearrow_forward2a. Describe the structural differences between cellulose and glycogen. 2b. State one structural feature of glycogen accounting for its energy storage role.arrow_forwardBy looking into the triacylglycerides synthesis pathway, suggest a possible treatment for fat loss/weight reduction. Discuss any possible complications that might occur from using your treatment.arrow_forward
- 2A. Red blood cells synthesize and degrade 2,3-bisphosphoglycerate (2,3-BPG) by a detour of the glycolytic pathway, as shown below: glyeeraldehyde 3-phosphate GAP dehydrogenase 1,3-bisphosphoglycerate bisphosphoglycerate mutase ADP phosphoglycerate kinase 2,3-bisphosphoglycerate ATP 3-phosphoglycerate 2,3-bisphosphoglycerate phosphatase phosphoglycerate mutase 2-phosphoglycerate (i) The bisphosphoglycerate mutase/2,3-bisphosphoglcerate phosphatase reaction is catalyzed by a single enzyme, BPGM. At alkaline pH, BPGM favors the mutase activity while at lower pH, BPGM favors the phosphatase reaction. Use this information, along with the Bohr effect, to explain in the space below how red blood cells respond to a metabolic defect where a patient experiences chronic, elevated levels of lactic acid. I (ii) Individuals with red blood cell phosphoglycerate kinase deficiency suffer from moderate hemolytic anemia (a condition where red blood cells self-destruct before their normal lifespan). They…arrow_forward3.) Tumors & Lactate. When tumor cells spread to regions of the body with low oxygen levels, the tumor cells generate adenosine triphosphate (ATP) from breaking down glucose into lactate. This is called the Warburg theory of cancer. How do DNA mutations that are present in these tumor cells enable them to thrive in low and high oxygen microenvironments? Write down your hypothesis. Glucose CYTOSOL Glycolysis Pyruvate No O, present Fermentation O, present Aerobic cellular respiration MITOCHONDRION Ethanol, lactate, or other products Acetyl CoA CITRIC ACID CYCLE A Figure 9.18 Pyruvate as a key juncture in catabolism. Glycol- ysis is common to fermentation and cellular respiration. The end prod- uct of glycolysis pyruvate, represents a fork in the catabolic pathways of glucose oxidation. In a facultative anaerobe or a muscle cell, which are capable of both aerobic cellular respiration and fermentation, pyru- vate is committed to one of those two pathways, usually depending on whether or…arrow_forwardIndicate whether each of the following substances is involved in (1) glycogenesis but not glycogenolysis, (2) glycogenolysis but not glycogenesis, (3) both glycogenesis and glycogenolysis, or (4) neither glycogenesis nor glycogenolysis. a. Glucose 6-phosphate b. UDP c. Glycogen d. Piarrow_forward
- Od. Vitamin B2 s page Hexokinase catalyzes phosphorylation of glucose to clucose-6-phosphate, where ATP is used as a donor of phosphate group, this an example of: Select one: NAVIGATION a. Oxidoreductase b. Ligase c. Lyase d. Transferase Next pagearrow_forward7. Which of the following statements about gluconeogenesis is CORRECT? Select one: a. Glucose-6-phosphatase hydrolyzes glucose 6-phosphate to release glucose into the blood. b. Glucose-6-phosphatase hydrolyzes glucose 6-phosphate and is found in liver and muscle. c. Fructose-1,6-biphosphatase converts fructose-1,6-bisphosphate into fructose-1-phosphate. d. Pyruvate is first converted to phosphoenolpyruvate by phosphoenolpyruvate carboxykinase.arrow_forwardDiscuss briefly but concisely the importance of the following metabolic pathway. E. Glycogenolysis F. Glycogenesis G. Pentose phosphate pathwayarrow_forward
- a. Draw b furanose b. A polysaccharide which is a major constituent in the exoskeleton of arthropods and the cell walls of fungi. c. D-allose is C-3 (Carbon-3) epimer of D- glucose. DRAW D- allosearrow_forwardCHOOSE THE CORRECT LETTER 1.What kind of reaction is catalyzed by hexokinase?A. oxidationB. reductionC. phosphorylationD. isomerization 2.Which of the following reaction types are NOT found in glycolysis?A. phosphorylationB. reductionC. oxidationD. isomerization 3.What type of reaction is catalyzed by glyceraldehyde-3-phosphate dehydrogenase?A.phosphorylationB.reductionC. isomerizationD. oxidationarrow_forwardPlease help me, short explanation will do...Discuss briefly but concisely the importance of the following metabolic pathway. A. Glycolysis B. Krebs Cycle C. Electron Transport Chain D. Gluconeogenesis E. Glycogenolysis F. Glycogenesis G. Pentose phosphate pathway H. B-oxidation of fatty acids I. Synthesis of fatty acids J. Amino acid metabolism K. Urea Cyclearrow_forward
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