Tca cycle step 1 - Study guides, Class notes & Summaries

UNE Biochem 1005 Unit 2 Exam Latest Questions With Correct Solutions. 1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signaling cascade initiated by glucagon? a. cAMP 1. Hereditary ...

Biology 3221A Biochemistry Final Exam Q&A- Rush University Which of the following single-base DNA gene coding changes is least likely to significantly affect the function of resulting protein? (Harper pages 361-363) A. Missence mutation resulting to histidine-to-glutamic acid change B. Silent mutations in the third codon base C. Frameshift mutation D. Nonsense mutation 2. Which of the following is a property of enhancer elements? (Harper pages 384-385) A. They do not work located downs...

UNE Biochem 1005 Unit 2 exam questions & answers 2024 1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? - ANSWER-The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? - ANSWER-a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signaling cascade initiated by glucagon? - ANSWER-a. cAMP ...

The ribonucleotide reductase is important for converting ribose bases to deoxy form. This conversion is coupled with the oxidation of what compound Thioredoxin Under fasting conditions, elevated glucagon will activate what enzyme Hormone-sensitive Ligase Short-chain fatty acids and medium-chain fatty acids enter mitochondria by Diffusion In liver, what key inhibitory events ensures that newly synthesized palmitoyl-CoA is not immediately oxidized? carnitine palmitoyl transferase-1 (CPT1)...

Which level of protein structure is disrupted through the hydrolysis of peptide bonds? Quaternary Tertiary Primary Secondary - ANSWER Primary The primary structure of a protein is the sequence of amino acids held together by peptide bonds. Peptide bonds are formed by dehydration reactions and disrupted by hydrolysis. A mutation in the beta-hemoglobin gene, which results in the replacement of the amino acid glutamate in position 6 with the amino acid valine, leads to the develop...

UNE CHEM 1005 Midterm Study Guide Graded A+ What enzyme is used by the gluconeogenic pathway but NOT in the glycolytic pathway? ️Phosphoenolpyruvate Carboxykinase PEPCK Newborn screening results show a biotinidase deficiency in a 2 day old infant. The deficiency impairs the infant's ability to reuse and recycle biotin. Due to the enzymatic deficiency, the activity of what enzyme is likely impaired? ️Pyruvate carboxylase If unregulated, which of the following pairs of enzymes wou...

UNE Biochem 1005 Unit 2 Exam Latest Questions With Correct Solutions. 1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signaling cascade initiated by glucagon? a. cAMP 1. Hereditary ...

UNE Biochem 1005 Unit 2 exam questions and answers latest top score. 1. Pyruvate dehydrogenase kinase catalyzes a reaction that results in which of the following? - correct answers.The phosphorylation and inactivation of E1 subunit (pyruvate dehydrogenase complex 1. Which of the following intermediates is an allosteric activator of pyruvate kinase? - correct answers.a. Fructose 1.6 bisphosphate 1. Which of the following is the initial second messenger in the signalin...

USMLE step 1 – biochemistry Exam Questions & Answers 2023/2024 infant with somnolence, vomiting, cerebral edema, decreased BUN, hyperammonemia - ANSWER-ornithine transcarbamoylase deficiency infantile cataracts, doesn't track objects, absent social smile - ANSWER-galactokinase deficiency infantile cataracts, hepatomegaly, jaundice, failure to thrive - ANSWER-uridyltransferase deficiency causes of Down syndrome - ANSWER-1) meiotic nondisjunction (95%) 2) unbalanced robertsonian tr...

UNE CHEM 1005 Midterm Study Guide questions and answers latest top score. What enzyme is used by the gluconeogenic pathway but NOT in the glycolytic pathway? - correct answers.Phosphoenolpyruvate Carboxykinase PEPCK Newborn screening results show a biotinidase deficiency in a 2 day old infant. The deficiency impairs the infant's ability to reuse and recycle biotin. Due to the enzymatic deficiency, the activity of what enzyme is likely impaired? - correct answers.Pyru...