In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to gluco...
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1-phosphate. Classify how each event affects the rate of glycogen breakdown in isolated muscle tissue.
Increased rate ; Decreased rate ; No change
Option: addition of phosphorylase b kinase ; addition of a phosphatase inhibitor ; end of fight-or-flight response ; treatment with glucagon ; AMP allosteric binding activates phosphorylase b ; treatment with insulin ; addition of phosphatase PP1 ; [ATP] exceeds [AMP].
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In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to gluco...
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion...
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1‑phosphate. Classify how each event affects the rate of glycogen breakdown in isolated muscle tissue. The classifications are Increased rate, Decreased rate, No change. Answer Bank: AMP allosteric binding activities phosphorylase b, addition of a phosphate inhibitor, addition of phosphorylase b kinase, removal of phosphate groups from phosphorylase a, end of fight-or-flight response, ATP exceeds AMP, treatment with insulin, treatment...
Biochemistry: Please do not copy and paste from other exercises. They are wrong and do not...
Biochemistry: Please do not copy and paste from other exercises.
They are wrong and do not have the same answer choices.
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1-phosphate. Classify how each event affects the rate of glycogen breakdown in isolated muscle tissue. Increased rate Decreased rate No change treatment with epinephrine removal of phosphate groups from phosphorylase a AMP allosteric binding activates phosphorylase b treatment with...
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)
I had this partially wrong too The muscle and liver forms of glycogen phosphorylase respond to...
I had this partially wrong too
The muscle and liver forms of glycogen phosphorylase respond to different allosteric effectors consistent with the energy status of a given tissue. Select the correct type of regulation with the correct isozyme. AMP ATP Activates liver phosphorylase a Activates liver phosphorylase b Glucose Inhibits liver phosphorylase a Inhibits liver phosphorylase b Glucose 6-phosphate Activates muscle phosphorylase a Activates muscle phosphorylase b Inhibits muscle phosphorylase a | Inhibits muscle phosphorylase b
Which statement is true? Epinephrine activates glycogen phosphorylase. Epinephrine increases glycolysis in muscle. Insulin decreases glycogen...
Which statement is true? Epinephrine activates glycogen phosphorylase. Epinephrine increases glycolysis in muscle. Insulin decreases glycogen breakdown by increasing phosphoprotein phosphatase-1 activity. All of the above
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...
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...
, ras-, Rat-, MEK-, MAPK. / 4. What determines the sensitivity of a cell to a...
, ras-, Rat-, MEK-, MAPK. / 4. What determines the sensitivity of a cell to a signaling ligand? a. The number of receptor proteins in the plasma membrane. b. The ligand concentration. c. The Kd of the receptor for a ligand. d. All of the above e. None of the above. 5. In the "fight or flight" response, epinephrine stimulation of muscle cells: a. inactivates Glycogen Phosphorylase Kinase (GPK). b. inactivates Glycogen Synthase (GS) c, activates Phosphoprotein Phosphatase 1 (PP1)....
€ → C .ap2020.collegeboard.org/Praott-aa857320- glucagon (a) A cell where PKB is always active has a mutation...
€ → C .ap2020.collegeboard.org/Praott-aa857320- glucagon (a) A cell where PKB is always active has a mutation that results in the permanent activation of GSK3. Based on the information in Figure 2, predict the effect of this mutation on the activity of glycogen synthase. (b) Justify your prediction in part (a). Describe the process that results in the activation of multiple copies of PKB in response to the binding of a single molecule of insulin to its receptor. (d) Explain why...
Easy question, 30 min timed assignment, please answer ASAP, thanks. 1. Glycerol from hydrolysis of triacylglycerols...
Easy question, 30 min timed assignment, please answer ASAP,
thanks.
1. Glycerol from hydrolysis of triacylglycerols enters gluconeogenesis at. a. glyceraldehyde-3-phosphate. b. dihydroxyacetone phosphate. c. 1,3-bisphosphoglycerate. d. 3-phosphoglycerate. e. 2-phosphoglycerate. or tissue prefers to use ketone bodies such as acetoacetate as a source of fuel instead of glucose? a. heart muscle c. brain d. liver e. stomach b. adrenal cortex 3. The key enzyme in glycogen degradation is a. glycogen phosphatase. b. glycogen hydrolase. c. glycogen phosphorylase A d. glycogen...
Biochemistry: Please do not copy and paste from other exercises.
They are wrong and do not have the same answer choices.
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1-phosphate. Classify how each event affects the rate of glycogen breakdown in isolated muscle tissue. Increased rate Decreased rate No change treatment with epinephrine removal of phosphate groups from phosphorylase a AMP allosteric binding activates phosphorylase b treatment with...
I had this partially wrong too
The muscle and liver forms of glycogen phosphorylase respond to different allosteric effectors consistent with the energy status of a given tissue. Select the correct type of regulation with the correct isozyme. AMP ATP Activates liver phosphorylase a Activates liver phosphorylase b Glucose Inhibits liver phosphorylase a Inhibits liver phosphorylase b Glucose 6-phosphate Activates muscle phosphorylase a Activates muscle phosphorylase b Inhibits muscle phosphorylase a | Inhibits muscle phosphorylase b
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...
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...
, ras-, Rat-, MEK-, MAPK. / 4. What determines the sensitivity of a cell to a signaling ligand? a. The number of receptor proteins in the plasma membrane. b. The ligand concentration. c. The Kd of the receptor for a ligand. d. All of the above e. None of the above. 5. In the "fight or flight" response, epinephrine stimulation of muscle cells: a. inactivates Glycogen Phosphorylase Kinase (GPK). b. inactivates Glycogen Synthase (GS) c, activates Phosphoprotein Phosphatase 1 (PP1)....
€ → C .ap2020.collegeboard.org/Praott-aa857320- glucagon (a) A cell where PKB is always active has a mutation that results in the permanent activation of GSK3. Based on the information in Figure 2, predict the effect of this mutation on the activity of glycogen synthase. (b) Justify your prediction in part (a). Describe the process that results in the activation of multiple copies of PKB in response to the binding of a single molecule of insulin to its receptor. (d) Explain why...
Easy question, 30 min timed assignment, please answer ASAP,
thanks.
1. Glycerol from hydrolysis of triacylglycerols enters gluconeogenesis at. a. glyceraldehyde-3-phosphate. b. dihydroxyacetone phosphate. c. 1,3-bisphosphoglycerate. d. 3-phosphoglycerate. e. 2-phosphoglycerate. or tissue prefers to use ketone bodies such as acetoacetate as a source of fuel instead of glucose? a. heart muscle c. brain d. liver e. stomach b. adrenal cortex 3. The key enzyme in glycogen degradation is a. glycogen phosphatase. b. glycogen hydrolase. c. glycogen phosphorylase A d. glycogen...
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