Test your basic knowledge |

GRE Biochemistry

Subjects : gre, science
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. Phe - Trp - Tyr - Gly - Pro






2. Unwound - participates in the active transcription of DNA to mRNA products - site of RNA Pol II regulation






3. Cis faces the ER and trans faces the plasma membrane






4. Secondary messenger - used for intracellular signal transduction - such as transferring the effects of hormones like glucagon and adrenaline - which cannot pass through the cell membrane. It is involved in the activation of protein kinases and regula






5. Derived from golgi vesicles






6. FAD-2 - NADP-3






7. 1e-14






8. Irreversible reaction that require ATP first part of glycolosis






9. Recruits RecA protein - inhibited by LexA - results in mutagenesis






10. Serine protease that cleaves on c terminal side of aromatics






11. Catalyze the phosphorylation of tyrosine residues in proteins - involved in signal cascades






12. Repeated replication w/o cell division






13. Converts oxaloacetate into phosphoenolpyruvate and carbon dioxide.






14. Tightly packed form of DNA - less accessible to protein factors that usually bind DNA






15. Do not contain F factor






16. Possess F factor integrated into the bacterial genome. After integration into the host chromosomal DNA - these plasmids possess portions of - or entire - F factor and portions of the bacterial genome.






17. Isoelectric point and MW






18. Can undergo both lytic and lysogenic cycle






19. Possess F factor as a plasmid independent of the bacterial genome. The F plasmid contains only F factor DNA and no DNA from the bacterial genome.






20. Val - Leu - Ile - Ala - Met






21. Vitamin B7 - cofactor that aids in CO2 transfer (carboxylase)






22. When exons are arranged in multiple orders after removal of introns






23. PKa = pH






24. Catalyzes the irreversible carboxylation of pyruvate to oxaloacetate (OAA).






25. Acts as a coenzyme in all transamination reactions - and in some decarboxylation and deamination reactions of amino acids. The aldehyde group of PLP forms a Schiff-base linkage (internal aldimine) with the e-amino group of a specific lysine group of






26. (His - Arg - Lys +) - (Glu - Asp -)






27. Donates electrons to form a bond such as N in amines and O in alcohols






28. Gene has multiple effects






29. Failure of chromosome pairs to separate during meiosis






30. Catalyzes the addition of bicarbonate to phosphoenolpyruvate (PEP) to form the four-carbon compound oxaloacetate






31. Recognizes and targets specific proteins to the endoplasmic reticulum in eukaryotes and the plasma membrane in prokaryotes






32. Phosphotransferase - is a type of enzyme that transfers phosphate groups from high-energy donor molecules - such as ATP -[2] to specific substrates. The process is referred to as phosphorylation -






33. Catalyzes the transport of tRNA and mRNA down the ribosome in eukaryotes






34. The most important regulatory enzyme of glycolysis. It is an allosteric enzyme made of 4 subunits and controlled by many activators and inhibitors. PFK-1 catalyzes the important 'committed' step of glycolysis - the conversion of fructose 6-phosphate






35. Triglycerides - cholesterols - and phospholipids






36. RNA protein-complex






37. Regulator of glycolysis when glucose is low by cleaving 2;6 BPG lowering PFK1 - opposite effect when glucose is high






38. Non-protein chemical compound that is bound to a protein and is required for the protein'S biological activity






39. Gene duplication






40. Neutralizes H2O2 - found in lysosomes






41. Cleaves on C terminal side of lysine and arginine






42. It uncouples oxidative phosphorylation by carrying protons across the mitochondrial membrane - leading to a rapid consumption of energy without generation of ATP.






43. Circular and double stranded






44. MRNA






45. Enzymes in Krebs cycle that produce NADH






46. Can result in allele differences - suce as 3:1 and 1:3






47. Vitamin B1 - cofactor that aids in dehydrogenase mostly






48. Acetyl-CoA to malonyl-CoA - rate limiting step in fatty acid synthesis






49. Can serve as a primer

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


50. Nuclear lamins - desmins - keratins - internexins (structure)