Cystathionine Study guides, Class notes & Summaries
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CLIPP Review Questions with 100% Correct Answers
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A 33-year-old G1P0 female with a history of medically controlled seizures gives birth 
vaginally to a boy with IUGR at 38 weeks' gestation. The newborn is noted to have dysmorphic cranial features and his head circumference is 28.5 cm (< 5th percentile). What is another associated abnormality you might expect to see in this newborn? 
A. Hepatosplenomegaly 
B. Cardiac defects 
C. Absent red reflex 
D. Chorioretinitis 
E. Tremors B. The mother was on an anticonvulsant for her seizures. Taking...
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UNE Biochemistry Final, Final, Final Exam Review UNE medical biochemistry Already Graded A+
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UNE Biochemistry Final, Final, Final Exam Review UNE medical biochemistry Already Graded A+ 
 
A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was found to be elevated 20-fold over normal values. Urine orotic acid and uracil were both greater than normal. A defect of which of the following enzymes is the most likely diagnosis? 
Ornithine transcarbamoylase 
Your patient presents with a deficiency of the enzyme that catalyzes synthesis of N-acetylglutamate ...
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UNE BioChem unit 4 multiple choice questions with certified answers
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UNE BioChem unit 4 multiple choice questions with certified answers 
Which of the following non-essential amino acids is synthesized as part of the urea cycle? Arginine 
Which of the following reactions of the urea cycle takes place in the mitochondria? The synthesis of carbamoyl phosphate 
The transamination of all amino acids requires which of the following cofactors? Pyridoxal phosphate (PLP) 
A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was found t...
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FIRST AID USMLE STEP 1 - VITAMINSQUESTIONS WITH 100% SOLVED SOLUTIONS!!
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Vitamin B1 (thiamine) - Deficiency - Impaired glucose breakdown p ATP depletion worsened by 
glucose infusion; highly aerobic tissues (eg, brain, heart) are affected first. In alcoholic or malnourished 
patients, give thiamine before dextrose to reduce risk of precipitating Wernicke encephalopathy. 
Diagnosis made by increase in RBC transketolase activity following vitamin B1 administration 
Vitamin A (retinol) - Excess - Acute toxicity—nausea, vomiting, vertigo, and blurred vision. Chronic 
t...
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ISSB Tumor Markers (Henry's 22nd ed) Exam Prep 2023.
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ISSB Tumor Markers (Henry's 22nd ed) Exam Prep 2023. 
Brain tumor - ANSWER *Major Marker:* 
Desmosterol 
 
*Minor Marker:* 
Polyamines 
 
Neuroblastoma - ANSWER *Major Marker:* 
VMA 
 
*Minor Marker:* 
HVA, NSE, cystathionine, ferritin, metanephrines 
 
Squamous cell carcinoma of the head and neck - ANSWER *Major Marker:* 
CYFRA 21-1 
 
Pituitary tumors - ANSWER *Major Marker:* 
Growth hormone 
 
*Minor Marker:* 
IGF-I 
 
Adrenal pituitary tumors - ANSWER *Major Marker:* 
Cortisol 
 
*Minor Mar...
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UNE Biochemistry Final, Final, Final Exam Review UNE medical biochemistry Already Graded A+
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UNE Biochemistry Final, Final, Final Exam Review UNE medical biochemistry Already Graded A+ 
 
A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was found to be elevated 20-fold over normal values. Urine orotic acid and uracil were both greater than normal. A defect of which of the following enzymes is the most likely diagnosis? 
Ornithine transcarbamoylase 
Your patient presents with a deficiency of the enzyme that catalyzes synthesis of N-acetylglutamate ...
-
UNE Biochemistry Final Questions With 100% Correct Answers.
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UNE Biochemistry Final Questions With 100% Correct Answers. 
 
The glucose-alanine cycle is a method of transferring ammonia from the skeletal muscle to the liver. In this process the non-toxic carrier of ammonia is which of the following compounds? 
Alanine 
Which of the following enzymes is correctly paired with its activator? 
N-acetylglutamate synthatase; arginine 
The urea cycle takes place in which of the following subcellular locations? 
the cytosol and the mitochondria 
Which of the foll...
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UNE Biochemistry Final Exam Review Questions With 100% Correct Answers
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UNE Biochemistry Final Exam Review 
Questions With 100% Correct Answers 
A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was 
found to be elevated 20-fold over normal values. Urine orotic acid and uracil were both greater 
than normal. A defect of which of the following enzymes is the most likely diagnosis? - 
answerOrnithine transcarbamoylase 
Your patient presents with a deficiency of the enzyme that catalyzes synthesis of N- 
acetylglutamate (NAGs). Wh...
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UNE Medical Biochemistry Unit 4 Questions & Answers Which of the following statements is consistent with nitrogen transport in the fasted state? Glutaminase will be inactive The urea cycle will be active Hepatic glutamate dehydrogenase will primarily pr
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UNE Medical Biochemistry Unit 4 Questions & Answers 
 
Which of the following statements is consistent with nitrogen transport in the fasted state? 
 
Glutaminase will be inactive 
The urea cycle will be active 
Hepatic glutamate dehydrogenase will primarily produce glutamate 
Transport of alanine from skeletal muscle will be reduced 
The urea cycle will be active 
Which of the following enzymes is likely to be active in both the fed and fasted states? 
 
Glycogen synthase 
Pyruvate kinase 
Horm...
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UNE Biochem Unit 4 Multiple Choice Questions With 100% Complete Answers.
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UNE Biochem Unit 4 Multiple Choice Questions With 100% Complete Answers. 
 
Which of the following non-essential amino acids is synthesized as part of the urea cycle? 
Arginine 
Which of the following reactions of the urea cycle takes place in the mitochondria? 
The synthesis of carbamoyl phosphate 
The transamination of all amino acids requires which of the following cofactors? 
Pyridoxal phosphate (PLP) 
A comatose infant is brought to the ER. In the course of the examination, plasma ammonia w...
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