Allosteric regulator Study guides, Class notes & Summaries

46. Which method of directly regulates PFK-I? A) feedback inhibition by fructose 2,6-bisphosphate B) feed forward activation by phosphoenolpyruvate C) allosteric activation by AMP D) its phosphorylation in response to glucagon signaling E) allosteric activation by citrate 47. Which statement regarding regulation of glycolysis and gluconeogenesis is FALSE? A) Phosphofructokinase-1 and fructose 1,6-bisphosphatase are PRevented from forming a futile cycle by reversible covalent modificatio...

FA EMBALMING CHEMISTRY (FSE-114-0901) MODULE 5- FINAL EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+/ The active site of an enzyme and the substrate alter their shape to form an enzyme-substrate complex. This is called induced fit model Feedback inhibition regulates a metabolic pathway Enzymes will work on only one substrate. This means enzymes are specific Pepsinogen is converted to pepsin by stomach acid How do enzymes speed up chemical reactions? they lower activation energy The...

Active Site - Attachment of substrate Often a water-free cavity Pouch-like Substrate - Substance acted upon enzyme Also called as chemical reactant Allosteric Site - Another cavity, other molecule other than substrate (inhibitors) May bind regulator molecules and,thereby. Be significant to the basic enzyme structure Place where the regulator bind

MCB 2000 Final Exam Questions And Answers (Verified And Updated) When does the synthesis of lipid occur? - answerHigh I/G ratio, excess calorie intake (excess carbons from glucose or excess dietary protein) What tissues are involved in the synthesis of lipids? - answerLiver (primary site in humans - 90%), adipose tissue How are the structures of triglycerides and phospholipids similar? - answerBoth contain a glycerol backbone w/ 2 fatty acids attached, BUT PL attach a phosphate group w/ a...

MCB 2000 Final Exam Questions And Answers (Verified And Updated) When does the synthesis of lipid occur? - answerHigh I/G ratio, excess calorie intake (excess carbons from glucose or excess dietary protein) What tissues are involved in the synthesis of lipids? - answerLiver (primary site in humans - 90%), adipose tissue How are the structures of triglycerides and phospholipids similar? - answerBoth contain a glycerol backbone w/ 2 fatty acids attached, BUT PL attach a phosphate group w/ a...

What enzyme does HIV use to convert RNA to DNA? [ ] A. DNA gyrase [ ] B. RNA polymerase [ ] C. Reverse transcriptase [ ] D. DNA helicase C Which of the following is TRUE of prokaryotes? I. Simultaneous transcription and translation II. Presence of intron sequences III. Circular DNA [ ] A. I and II only [ ] B. I and III only [ ] C. II and III only [ ] D. I, II, and III B The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site fo...

Which represents the correct order of biological organization (from simplest to most complex)? A) cells, molecules, atoms, organ systems, tissues, organism B) molecules, atoms, cells, tissues, organ systems, organism C) organism, organ systems, tissues, cells, molecules, atoms D) atoms, molecules, cells, tissues, organ systems, organism E) atoms, molecules, organ systems, tissues, cells, organism D) atoms, molecules, cells, tissues, organ systems, organism What is a hypothesis? A) t...

a basic amino acid has an R group that contains - an amine group a competitive inhibitor is one that - binds to the active site in place of the substrate a lipid formed by esterification of 3 fatty acids to a glycerol is commonly named? - triglyceride a noncompetitive inhibitor has a structure that - does not resemble the substrate structure a polyunsaturated fatty acid contains more than one - double bond a triacylglycerol that is solid at room temp is called an - fat Active site of an en...

MCB 2000 Final Exam Questions And Answers (Verified And Updated) When does the synthesis of lipid occur? - answerHigh I/G ratio, excess calorie intake (excess carbons from glucose or excess dietary protein) What tissues are involved in the synthesis of lipids? - answerLiver (primary site in humans - 90%), adipose tissue How are the structures of triglycerides and phospholipids similar? - answerBoth contain a glycerol backbone w/ 2 fatty acids attached, BUT PL attach a phosphate group w/ a...

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...