Which of the following would be associated with HIGH glycolysis rate? Activation of adenylate cyclase Decreased...
Homework Answers
Solution:- Activation of adenylate cyclase.
Increased cAMP levels .
Binding of cAMP to PKA.
Exercise. Can associated with high glycolysis rate.
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Which of the following would be associated with HIGH
glycolysis rate?
Activation of adenylate cyclase
Decreased...
Which of the following would be associated with HIGH glycolysis rate? Increased camp levels High free energy charge Dec...
Which of the following would be associated with HIGH glycolysis rate? Increased camp levels High free energy charge Decreased levels of F-1,6-BP Binding of protein G to GTP Decreased phosphoprotein phosphatase activity Decreased insulin levels Fasting Unphosphorylated pyruvate kinase
8.) which of the following statements does not describe heterotrimeric g proteins involved in the adenylate...
8.) which of the following statements does not describe heterotrimeric g proteins involved in the adenylate cyclase signaling pathway? a. binding to adenylate cyclase triggers the hydrolysis of PIP2 b. consist of three subunits, Galpha, Gbeta, and Ggamma c. can function as a mediator to adenylate cyclase activity d. are anchored to the cytoplasmic side of the membrane e. activates adenylate cyclase by binding to its C2a subunit 9.) which of the following is not associated with the cAMP binding...
The intracellular concentrations of cAMP in Escherichia coli are controlled by adenylate cyclase, which is encoded...
The intracellular concentrations of cAMP in Escherichia coli are controlled by adenylate cyclase, which is encoded by the Cya gene. Withdrawal of the glucose from the growth medium causes a reduction of ATP and a dramatic stimulation of the cyclase activity and the production of cAMP. Consider two E. coli strains with the following genotypes, where “+” indicates a wild-type gene with normal function and “-” indicates a loss-of-function allele: Strain A: Cya- CAP+ I+ P+ O+ Z- Y+ Strain...
A complex signaling pathway in yeast allows the cells to accumulate high concentrations of glycer...
A complex signaling pathway in yeast allows the cells to accumulate high concentrations of glycerol if they are exposed to high extracellular concentration of salt or glucose. The increased osmolarity of the extracellular medium activates Ras, which in turn activates adenylate cyclase. A second pathway, the HOG (high osmolarity glycerol) pathway activates the MAP kinase pathway. The target protein is the enzyme PFK2, which is activated by phosphorylation. (PFK2 produces an allosteric regulator that activates glycolysis, which ultimately produces glycerol.)...
The lac operon contains a DNA sequence known as the lac promoter (P or P+ for...
The lac operon contains a DNA sequence known as the lac promoter (P or P+ for wild type; P– for mutant (RNA polymerase does not bind)) that serves as the RNA polymerase binding site. The lac operon also contains a DNA sequence known as the Lac operator (O or O+ for wild type; O– or Oc for mutant (lac repressor cannot bind)) which is the binding site for lac repressor. The lac repressor, a protein, is encoded by the lac...
A. B. C. D. E. F. Thank you receptors induce activation of adenlyate cyclase, which creates...
A. B. C. D. E. F. Thank you
receptors induce activation of adenlyate cyclase, which creates the second messenger(s) O G-Protein Coupled, CAMP O Tyrosine Kinase, CAMP OTyrosine Kinase, IP3 and DAG G-Protein Coupled, IP3 and DAG Which of the following is most likely to be activated by a small hydrophobic signal? OIntracellular receptor Receptor Tyrosine Kinase O G-Protein Coupled Receptor Ligand-Gated lon Channel Which of the following types of receptors require dimerization for activation? (Select any/all that apply) OLigand-gated...
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...
The CFTR protein is a membrane Cl- transport protein and has a cytosolic regulatory domain that...
The CFTR protein is a membrane Cl- transport protein and has a cytosolic regulatory domain that is phosphorylated by protein kinase A (PKA). PKA phosphorylation has been found to activate the Cl- channel activity of CFTR in lung cells. Secretion of chloride by CFTR is enhanced by binding of epinephrine to the β-adrenergic receptor that couples to Gs, and is inhibited by binding of serotonin to a G-protein coupled receptor (GPCR) that couples to Gi. However, epinephrine and serotonin added...
QUESTION 4 Which of the following enzymes directly converts phosphorylaseb into the more active form, phosphorylase...
QUESTION 4 Which of the following enzymes directly converts phosphorylaseb into the more active form, phosphorylase a? A. CAMP-dependent protein kinase B. phosphorylase kinase C. protein kinase A D. adenylate kinase E phosphoprotein phosphatase The biotin prosthetic group of pyruvate carboxylase is covalently attached to a residue of the enzyme ? A. Vakine B. serine C. lysine D. arginine E. the biotin is attached non-covalently Which of the following serves as the energy source for the metabolic conversion of oxaloacetate...
Which one of the following conditions would increase the synthesis of fatty acids? a. A decrease...
Which one of the following conditions would increase the synthesis of fatty acids? a. A decrease in the insulin/glucagon ratio b. A decrease in the levels of cytosolic citrate c. An increase in the activity of the carnitine shuttle d. a decrease level of malonyl-SCoA e. A decreased activity of isocitrate dehydrogenase I keep researching this questions and end up with concluding that none of the choices are right. Please help thanks.
A. B. C. D. E. F. Thank you
receptors induce activation of adenlyate cyclase, which creates the second messenger(s) O G-Protein Coupled, CAMP O Tyrosine Kinase, CAMP OTyrosine Kinase, IP3 and DAG G-Protein Coupled, IP3 and DAG Which of the following is most likely to be activated by a small hydrophobic signal? OIntracellular receptor Receptor Tyrosine Kinase O G-Protein Coupled Receptor Ligand-Gated lon Channel Which of the following types of receptors require dimerization for activation? (Select any/all that apply) OLigand-gated...
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 4 Which of the following enzymes directly converts phosphorylaseb into the more active form, phosphorylase a? A. CAMP-dependent protein kinase B. phosphorylase kinase C. protein kinase A D. adenylate kinase E phosphoprotein phosphatase The biotin prosthetic group of pyruvate carboxylase is covalently attached to a residue of the enzyme ? A. Vakine B. serine C. lysine D. arginine E. the biotin is attached non-covalently Which of the following serves as the energy source for the metabolic conversion of oxaloacetate...
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