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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...

UNE Medical Biochemistry Unit 3 Review (For this guide, I made the questions from the video lectures, study guides, and quiz/test reviews) Rated A+ What occurs when glucagon is high and insulin is low? Beta-oxidation During the fasted state, the liver uses ______ as fuel and the pathway is _______. Fatty acids, Lipolysis in the adipose During the fasted state, the red blood cell uses ______ as fuel and the pathway is _______. Glucose, Hepatic glycogenolysis, and gluconeogenesis During t...

UNE medical biochemistry Unit 3 Questions and Answers In the fasted state, fatty acyl-CoA are transported across the mitochondrial membrane. The transport of fatty acids via carnitine palmitoyl transferase I (CPTI) can be directly inhibited by which of the following compounds? a. Malonyl CoA b. Carnitine c. Acetyl CoA d. Palmitate Malonyl CoA Under fasting conditions (ratio of insulin to glucagon <1), elevated glucagon will activate which of the following enzymes? a. glycogen syntha...

UNE CHEM 1005: MEDICAL BIOCHEMISTRY FINAL EXAM Carnitine palmitoyl transferase - transfers acyl groups from CoA to carnitine & vice versa - inhibited by malonyl-CoA ketone bodies - acetoacetate, β-hydroxybutyrate, acetone - oxidized as fuel source in extreme fasting d-3-hydroxybutyrate dehydrogenase

UNE medical biochem FINAL |108 Questions | With Complete Solutions. Which of the following urea cycle enzymes catalyzes the reaction hydrolyzing the release of urea from arginine? Arginase Arginase releases urea from arginine through a hydrolytic cleavage. Which of the following enzymes is likely to be active in both the fed and fasted states? Glutaminase Glutaminase in the liver is responsible for freeing ammonia from glutamine. In the fasted state, glutamine will be in excess due t...

UNE Medical Biochem Final Exam Review Rated 100% Correct!! short chain fatty acids and medium chain fatty acids enter mitochondria by: Diffusion Under fasting conditions (ratio of insulin to glucagon <1), elevated glucagon will activate which of the following enzymes? Hormone sensitive lipase the process of ketogenesis refers to the conversion of acetyl-CoA to which of the following compounds? B-hydroxybutyrate A well, 2-year-old female presents to the clinic with symptoms of a viral...

UNE Medical Biochemistry Midterm Questions With Complete Solutions. Which of the following proteins is likely to have quaternary structure? A multimeric protein that contains multiple peptide chains Prosthetic groups are complex nonprotein molecules that participate in catalysis by providing functional groups that form a covalent intermediate between the enzyme and the substrate. Which of the following is an example of a coenzyme or cofactor that participates in a covalent catalysis reactio...

UNE Medical Biochemistry Midterm Questions With Complete Solutions. Which of the following proteins is likely to have quaternary structure? A multimeric protein that contains multiple peptide chains Prosthetic groups are complex nonprotein molecules that participate in catalysis by providing functional groups that form a covalent intermediate between the enzyme and the substrate. Which of the following is an example of a coenzyme or cofactor that participates in a covalent catalysis reactio...

UNE medical biochemistry Unit 2 Test If unregulated, which of the following pairs of enzymes would represent a futile cycle? Fructose 1,6 bisphosphatase and phosphofructokinase-1 Rotenone blocks complex 1 in the ETC. This increases levels of NADH and would likely impair the function of which of the following enzymes? Pyruvate dehydrogenase complex Newborn screening shows a biotinidase deficiency in a 2-day old infant. This deficienty impairs the infant's ability to reuse and recycle biot...

Exam(Elaborations) UNE Biochemistry Unit 4 – Final 2024 Which of the following amino acids is considered non essential because it is generated by the urea cycle? A. arginine B. lysine C. asparagine D. glutamine E. histidine arginine The urea cycle takes place in which of the following subcellular locations? A. the cytosol and the mitochondria B. the mitochondria only C. the cytosol only the cytosol and the mitochondria Ubiquitination is a means of targeting a pro...

Exam(Elaborations) UNE Biochemistry Unit 4 – Final 2024 Which of the following amino acids is considered non essential because it is generated by the urea cycle? A. arginine B. lysine C. asparagine D. glutamine E. histidine arginine The urea cycle takes place in which of the following subcellular locations? A. the cytosol and the mitochondria B. the mitochondria only C. the cytosol only the cytosol and the mitochondria Ubiquitination is a means of targeting a pro...

UNE Medical Biochem Final Exam Questions With Solved Answers Scored A+ The cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? Increases degradation of HMG-CoA reductase Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? Chylomicrons. Cholesterol and TG from diet are transported from intestine to liver via chylomicrons. The LDL receptor is also highly re...

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...

UNE BIOCHEM UNIT 1 Domains are common structural elements that retain a particular function within the protein. Give an example fo a protein domain. An arrangement of Beta-strands connected by a-helices (BaBaBa) Define what a protein domain is

UNE BIOCHEM 1005 WEEK 1 QUESTIONS WITH CORRECT ANSWERS. What are the four different protein structures? 1. Primary 2. Secondary 3. Tertiary 4. Quaternary What is the primary structure of a protein? a linear sequence of amino acids in polypeptide chains which is written from the amino terminus (N-terminus) to the carboxyl terminus (C-terminus) What is the secondary structure made of? a-helix, b-sheets, and bends, turns, or loops How are alpha helices formed? They are formed when the ...

UNE Medical Biochemistry Midterm Review Questions & Answers Rated 100% Correct!! Ribose and NADPH A family presents for genetic counseling. The couple has two female children who are alive and well; however, their infant son recently died in the nursery with severe hemolysis (lysis of red blood cells) and jaundice. The wife recalls she lost a brother in infancy with severe hemolysis, induced after a viral infection. The physician suspects a glucose-6-phosphate dehydrogenase deficiency, this ...

UNE Biochemistry Unit 3 Which of the following lipoproteins distributes dietary lipids? chylomicron The interaction of chylomicrons with lipoprotein lipase is stimulated by which of the following Apo proteins? ApoC II Nascent chylomicrons are synthesized in which tissue? Intestine Bile salts are synthesized from cholesterol and are used for the emulsification of dietary lipids. What is the primary fate of bile salts during digestion? They are reabsorbed in the ileum Nascent chylomicro...

UNE Medical Biochemistry Exam 1 Questions With Complete Solutions. what percentage of water is in the body? 60% Relationship between protons and acids & bases Acids donate proton. Bases accept proton Strong Acids Vs Weak Acids Strong acids fully dissociate (100%) and weak acids partially dissociate properties of water dipole dipole polar H bonding dissolves electrolytes ( CL /Na) Small Kd- doesn't dissociate alot kw ion product 10^-14 pH -log[H+] biological PH 7.4 types of ...

UNE FINAL BIOCHEM LATEST EXAM!! What are the main products of beta oxidation? 1 NADH, 1 FADH, 1 Acetyl CoA So in the case of an 11-year-old girl brought to the emergency department by her father, he's reporting that she's been very thirsty and needing to make frequent strips to the bathroom. Today, she reported lightheadedness during a soccer game and symptoms did not resolve after drinking a power beverage. A rapid dipstick test revealed glucose in her urine and further diagnosis are con...

Unit 3 UNE Biochem Test Questions & Answers Already Scored A+ An individual goes to bed around 8 pm and doesn't wake up until 9 am the next morning . During this time, which of the following is the primary oxidizable substrate in the skeletal muscle? Free fatty acids The process of ketogenesis refers to the conversion of acetyl CoA to which of the following compounds? D-3-hydroxybutyrate or beta hydroxybutyrate Under fasting conditions, elevated glucagon will activate which of the follow...