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Biochemistry

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. How do microtubules grow and collapse






2. protein malnutrition resulting in skin lesions - edema and liver malfxn






3. 1 g of protein or cabrohydrate = ?kcal






4. What step of uric acid synthesis does xanthine oxidase catalyze






5. What is the rate limiting enzyme in cholesterol synthesis






6. How do aminoglycosides work






7. What happens at the smooth ER






8. What do DNA topoisomerases do






9. What is the longest time of RNA and shortest






10. What is the RDE of de novo purine synthesis






11. What are the products for glycolysis






12. What rxn does propionyl - CoA carboxylase catalyze






13. What is the amino acid precursor for porphyrin and heme






14. What is the RDE of glycogen synthesis






15. What is the defect in I- hyperchylomicronemia






16. What converts limit dextran to glucose






17. Outside the fibroblast What part of procollagen is cleaved and What is it transformed into






18. The pyruvate dehydorgenase complex serves In what reaction: reactants






19. What 3 steps in RNA processing occur after transcription

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20. Describe robertsonian translocation






21. What are possilbe presentation for galactokinase def






22. How are the many staggered tropocollagen molecules reinforced






23. What is the activated carrier for aldehyddes






24. What lab technique is use to profile gene expression levels of thousands of genes simultaneously to study certain diseases and treatments






25. metaphse chromosomes are stained - ordered and numbered according to morphology - size - arm length ratio - banding pattern






26. What is the treatment for dec affinity of cystathionine synthase for pyroxidal phosphate






27. How does ouabain work






28. What is made fir rNucleotides or deoxyrNucleotides and what enzyme is necessary to convert one to the next






29. What occurs to oxaloacetate in starvation and DKA






30. What does lipoprotein lipase do






31. What are the findings with homocystinuria and What amino acid is needs to be supplemented






32. What is the defect in II A familial hypercholesterolemia






33. Very Poor Carbohydrate Metabolism stands for 4 of the glycogen storage diseases - What are thy

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34. Leysh - Nyhan syndrome is a defect in which enzyme and What are the biochemical results






35. Why enzyme breaks down elastin and what enzyme inhibits it






36. What is the main source of folate






37. deletion of VHL gene on chromosome 3 leading to hemangioblastomas of retina/cerebellum/medulla bilateral RCC - dz and overexpression product






38. In the chromatin structure - which histones form the octamer - and which ties the nucleosome beads together in a string?






39. What are Heinz bodies






40. Which anticancer drugs work on microtubules






41. what happens in acyl coa dehyrdogenase def






42. Why does alpha amanitin cause liver failure and Where is it found






43. What enzyme does fructose metabolism bypass to reach glycolysis






44. What form of amino acids are found in proteins






45. What does the golgi add to serine and threonine residues






46. What does hepatic TG lipase do






47. Gene imprinting implies that How many alleles are active at a single locus






48. What is the structure of elastin






49. What is the amino acid precuror for creatine - urea and nitric oxide






50. What substances directly inhibit electron transport chain