Homework Answers
Protein Phosphatase 1 enzyme reverses the effects of PKA.
Explanation:-
PKA stands for Protein Kinase A.It phosphorylate many enzymes important in metabolism.For example it phosphorylates acetyl-CoA carboxylase and pyruvate dehydrogenase.Protein Phosphatases reverse the effect of kinase by catalyzing the hydrolytic removal of phosphoryl groups attached to proteins.
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Question 7 Which enzyme reverses the effects of PKA? protein peptidase 1 protein polymerase 1 protein...
Which is not involved in the regulation of glycogen phosphorylase? A) Allosteric inhibition of phosphorylase by...
Which is not involved in the regulation of glycogen phosphorylase? A) Allosteric inhibition of phosphorylase by ATP B) Indirect, positive regulation by glucagon C) Phosphorylation of phosphorylase by protein kinase A (PKA) D) Direct and indirect regulation by protein phosphatase 1 (PP1) E) Indirect, negative regulation by protein phosphatase 2B (PP2B)
Protein kinase A phosphorylates _____, which then activates _____. A) phosphorylase kinase; glycogen phosphorylase B) protein...
Protein kinase A phosphorylates _____, which then activates _____. A) phosphorylase kinase; glycogen phosphorylase B) protein phosphatase 1; glycogen synthase C) glycogen phosphorylase; phosphoglucomutase D) adenylate cyclase; phosphorylase kinase
Question 1 Which of the following pairs is mismatched? DNA polymerase makes a molecule of DNA...
Question 1 Which of the following pairs is mismatched? DNA polymerase makes a molecule of DNA from a DNA template O DNA ligase joins segments of DNA O Primase incorporates an RNA primer RNA polymerase makes a molecule of RNA from an RNA template O Helicase separates complementary strands of DNA
Question 15 1 pts Chapter 16: what enzyme produced the red part of C and D....
Question 15 1 pts Chapter 16: what enzyme produced the red part of C and D. A 5'-3' С B G D E O DNA polymerasel ODNA polymerase III O primase O primer
D Question 1 (Matching) Match the enzyme/structure with its role in DNA replication. DNA polymerase synthesizes...
D Question 1 (Matching) Match the enzyme/structure with its role in DNA replication. DNA polymerase synthesizes the new strand of RNA primase Choose synthesizes the new strand of DNA synthesizes a short fragment of complementary RNA attach to template DNA strands to prevent hydrogen bonding Uncoils the supercoil of prokaryotic chromosomes connects Okazaki fragments of new lagging strand of DNA unwinds and unzips the double stranded DNA Single stranded binding proteins (SSB's) DNA Ligase [Choose] Helicase [Choose) DNA Gyrase (Choose]...
Q5. The phosphorylase enzyme, which is involved in breakdown of glycogen to glucose, is controlled by...
Q5. The phosphorylase enzyme, which is involved in breakdown of glycogen to glucose, is controlled by both allosteric mechanisms and posttranslational modification. A) Describe how the T to R transition and activity of glycogen phosphorylase would change under the following conditions: i) high AMP levels and activation of phosphoprotein phosphatase, ii) activation of phosphorylase kinase, ili) activation of phosphorylase kinase and high glucose levels. B) What properties would an uncompetitive inhibitor of glycogen phosphorylase have, what would the Lineweaver Burk...
Question 5 Discontinuous replication on the lagging strand requires a. 1 polymerase enzyme b. multiple polymerase...
Question 5 Discontinuous replication on the lagging strand requires a. 1 polymerase enzyme b. multiple polymerase enzymes c. 1 RNA primer d. no RNA primer A Moving to another question will save this response. PO F3 000
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded...
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 21. Which enzyme joins newly synthesized DNA fragments on the lagging strand? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 22. In a PCR reaction, at which temperature do the two strands of DNA...
QUESTION 4 Which of the following provides the free 3'-OH group for DNA polymerase to fill...
QUESTION 4 Which of the following provides the free 3'-OH group for DNA polymerase to fill in the ends of telomere DNA? O A. The end of the previous Okazaki fragment. O 0 The RNA primers laid down by primase. o O C. The RNA bound to telomerase. OD. The ends are filled in by RNA polymerase which does not require a free 3'-OH group.
12. An enzyme, phosphodiesterase, catalyzes the conversion of CAMP to AMP. Using the glycogen control diagram...
12. An enzyme, phosphodiesterase, catalyzes the conversion of CAMP to AMP. Using the glycogen control diagram handed out separately, predict whether activating phosphodiesterase in turn activates or deactivates each of the enzymes below: Deactivates Activates Enzyme phosphorylase kinase glycogen phosphorylase phosphoprotein phosphatase-1 glycogen synthase ロロロロ ロロロロ Thus, when phosphodiesterase is activated, glycogen degradation is glycogen synthesis is activated Odeactivated and O activated Odeactivated. Based on your answers above, which hormone most likely activates phosphodiesterase? Check all that apply. O insulin...
Question 1 Which of the following pairs is mismatched? DNA polymerase makes a molecule of DNA from a DNA template O DNA ligase joins segments of DNA O Primase incorporates an RNA primer RNA polymerase makes a molecule of RNA from an RNA template O Helicase separates complementary strands of DNA
Question 15 1 pts Chapter 16: what enzyme produced the red part of C and D. A 5'-3' С B G D E O DNA polymerasel ODNA polymerase III O primase O primer
D Question 1 (Matching) Match the enzyme/structure with its role in DNA replication. DNA polymerase synthesizes the new strand of RNA primase Choose synthesizes the new strand of DNA synthesizes a short fragment of complementary RNA attach to template DNA strands to prevent hydrogen bonding Uncoils the supercoil of prokaryotic chromosomes connects Okazaki fragments of new lagging strand of DNA unwinds and unzips the double stranded DNA Single stranded binding proteins (SSB's) DNA Ligase [Choose] Helicase [Choose) DNA Gyrase (Choose]...
Q5. The phosphorylase enzyme, which is involved in breakdown of glycogen to glucose, is controlled by both allosteric mechanisms and posttranslational modification. A) Describe how the T to R transition and activity of glycogen phosphorylase would change under the following conditions: i) high AMP levels and activation of phosphoprotein phosphatase, ii) activation of phosphorylase kinase, ili) activation of phosphorylase kinase and high glucose levels. B) What properties would an uncompetitive inhibitor of glycogen phosphorylase have, what would the Lineweaver Burk...
Question 5 Discontinuous replication on the lagging strand requires a. 1 polymerase enzyme b. multiple polymerase enzymes c. 1 RNA primer d. no RNA primer A Moving to another question will save this response. PO F3 000
20. Which enzyme separates the strands of the DNA helix? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 21. Which enzyme joins newly synthesized DNA fragments on the lagging strand? A. DNA Polymerase E. Single Stranded Binding Proteins B. Ligase F. Primase C. Helicase G. Lagging Strand D. Topoisomerase H. Leading Strand 22. In a PCR reaction, at which temperature do the two strands of DNA...
QUESTION 4 Which of the following provides the free 3'-OH group for DNA polymerase to fill in the ends of telomere DNA? O A. The end of the previous Okazaki fragment. O 0 The RNA primers laid down by primase. o O C. The RNA bound to telomerase. OD. The ends are filled in by RNA polymerase which does not require a free 3'-OH group.
12. An enzyme, phosphodiesterase, catalyzes the conversion of CAMP to AMP. Using the glycogen control diagram handed out separately, predict whether activating phosphodiesterase in turn activates or deactivates each of the enzymes below: Deactivates Activates Enzyme phosphorylase kinase glycogen phosphorylase phosphoprotein phosphatase-1 glycogen synthase ロロロロ ロロロロ Thus, when phosphodiesterase is activated, glycogen degradation is glycogen synthesis is activated Odeactivated and O activated Odeactivated. Based on your answers above, which hormone most likely activates phosphodiesterase? Check all that apply. O insulin...
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