6)Select the CORRECT answer regarding creatine: A. It is synthesized in the muscle. B. Creatine synthesis requires S-adenosyl-methionine (SAM) C. The process of creatine synthesis generates ornithine, that can be used in the urea synthesis cycle. D. Creatine phosphate is an energy reserve for the muscle E. a fraction of the creatine phosphate in muscle is converted to creatinine by the action of creatine kinase. 7)Select the CORRECT answers regarding delta-ALA (aminolevulinate) synthase: A. It catalyzes the rate limiting step in the pathway of heme synthesis. B.lt is allosterically activated by heme. C. It synthesizes delta-ALA from glycine and acetyl-CoA. D. It has a decreased activity in case of vitamin B6 deficiency. E. Heme influences the concentration of delta-ALA synthase in the red blood cell precursors. 8)Select the correct statements about heme degradation: A. The stereobilin that arises by the oxidation of urobilinogen confers the characteristie color of the feces. B. It involves the removal of Fe2+ from heme molecule, with the generation of protoporphyrin. C. During heme degradation, the protoporphyrin ring is opened and CO is released. D. Bilirubin is conjugated with UDP-glucuronic acid in the spleen. E. The conjugated bilirubin is transported in plasma by albumin. 9)Which of the following represent possible consequences of an excessive hemolysis? A. An increase of conjugated bilirubin in blood. B. Conjugated hyperbilirubinemia. C. A compensatory increase of liver glucuronyl transferase activity. D. An decrease of the amount of stercobilin in the feces. E. The risk of brain damage (if intense hemolysis occurs in a new born). All questions have 2, 3 or 4 correct answer; it you put only 1 answer or 5 answers, the question will be cancelled.
6)Select the CORRECT answer regarding creatine: A. It is synthesized in the muscle. B. Creatine synthesis requires S-adenosyl-methionine (SAM) C. The process of creatine synthesis generates ornithine, that can be used in the urea synthesis cycle. D. Creatine phosphate is an energy reserve for the muscle E. a fraction of the creatine phosphate in muscle is converted to creatinine by the action of creatine kinase. 7)Select the CORRECT answers regarding delta-ALA (aminolevulinate) synthase: A. It catalyzes the rate limiting step in the pathway of heme synthesis. B.lt is allosterically activated by heme. C. It synthesizes delta-ALA from glycine and acetyl-CoA. D. It has a decreased activity in case of vitamin B6 deficiency. E. Heme influences the concentration of delta-ALA synthase in the red blood cell precursors. 8)Select the correct statements about heme degradation: A. The stereobilin that arises by the oxidation of urobilinogen confers the characteristie color of the feces. B. It involves the removal of Fe2+ from heme molecule, with the generation of protoporphyrin. C. During heme degradation, the protoporphyrin ring is opened and CO is released. D. Bilirubin is conjugated with UDP-glucuronic acid in the spleen. E. The conjugated bilirubin is transported in plasma by albumin. 9)Which of the following represent possible consequences of an excessive hemolysis? A. An increase of conjugated bilirubin in blood. B. Conjugated hyperbilirubinemia. C. A compensatory increase of liver glucuronyl transferase activity. D. An decrease of the amount of stercobilin in the feces. E. The risk of brain damage (if intense hemolysis occurs in a new born). All questions have 2, 3 or 4 correct answer; it you put only 1 answer or 5 answers, the question will be cancelled.
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:6)Select the CORRECT answer regarding creatine:
A. It is synthesized in the muscle.
B. Creatine synthesis requires S-adenosyl-methionine (SAM)
C. The process of creatine synthesis generates ornithine, that can be used
in the urea synthesis cycle.
D. Creatine phosphate is an energy reserve for the muscle
E. a fraction of the creatine phosphate in muscle is converted to creatinine
by the action of creatine kinase.
7)Select the CORRECT answers regarding delta-ALA (aminolevulinate)
synthase:
A. It catalyzes the rate limiting step in the pathway of heme synthesis.
B.It is allosterically activated by heme.
C. It synthesizes delta-ALA from glycine and acetyl-CoA.
D. It has a decreased activity in case of vitamin B6 deficiency.
E. Heme influences the concentration of delta-ALA synthase in the red
blood cell precursors.
8)Select the correct statements about heme degradation:
A. The stereobilin that arises by the oxidation of urobilinogen confers the
characteristie color of the feces.
B. It involves the removal of Fe2+ from heme molecule, with the generation
of protoporphyrin.
C. During heme degradation, the protoporphyrin ring is opened and CcO is
released.
D. Bilirubin is conjugated with UDP-glucuronic acid in the spleen.
E. The conjugated bilirubin is transported in plasma by albumin.
9)Which of the following represent possible consequences of an excessive
hemolysis?
A. An increase of conjugated bilirubin in blood.
B. Conjugated hyperbilirubinemia.
C. A compensatory increase of liver glucuronyl transferase activity.
D. An decrease of the amount of stercobilin in the feces.
E. The risk of brain damage (if intense hemolysis occurs in a new born).
All questions have 2, 3 or 4 correct answer; it you put only 1 answer or 5
answers, the
question will be cancelled.
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