Which of the following enzymes catalyzes a reaction that is normally reversible in the cell? a....
Which of the following enzymes catalyzes a reaction that is normally reversible in the cell?
a. pyruvate kinase
b. Phosphoglyceromutase
c. phosphofructokinase-1
d. Hexokinase
Homework Answers
In Glycolysis
1-3 bisphosphoglycerate+ADP--------- 3-PHOSPHOGLYCERATE+ATP.
is an reversible reaction . catalised by phosphoglycerate kinase.
Add Answer to:
Which of the following enzymes catalyzes a reaction that is
normally reversible in the cell?
a....
Which of the following enzyme catalyzes the first step of glycolysis? * Hexokinase Pyruvate kinase Glucokinase...
Which of the following enzyme catalyzes the first step of glycolysis? * Hexokinase Pyruvate kinase Glucokinase Phosphofructokinase-1
Which pair of opposite enzymes in the glycolysis and gluconeogenesis pathway are not allosterically regulated but...
Which pair of opposite enzymes in the glycolysis and gluconeogenesis pathway are not allosterically regulated but rather regulated by compartmentalization? Select one: a. pyruvate kinase/PEP carboxykinase b. phosphofructokinase 1/fructose-1,6-bisphosphatase c. phosphofructokinase 2/fructose-2,6-bisphosphatase d. hexokinase/glucose-6-phosphatase
Which of the diagrams illustrates the way in which the rate of an enzyme-controlled reaction depends...
Which of the diagrams illustrates the way in which the rate of an enzyme-controlled reaction depends on substrate concentration? * А B Rate of reaction MÚN Substrate concentration A B D When starch and amylase are mixed in the presence of iodine solution, the blue-black colour rapidly disappears. This is due to the formation of which molecule? * glucose O glycogen sucrose O maltose Which of the following enzyme groups can catalyse oxidation reactions? * O phosphorylases isomerases hydrolases dehydrogenases...
Which enzymes in glycolysis use NAD+ as a cofactor? Select all that apply. O Select all...
Which enzymes in glycolysis use NAD+ as a cofactor? Select all that apply. O Select all that apply Hexokinase B Phosphoglucoisomerase Phosphofructokinase Aldolase Triose Phosphate Isomerase Glyceraldehyde-3-phosphate dehydrogenase Phosphoglycerate kinase H Phosphoglycerate Mutase Enolase Submit Pyruvate kinase
4. Which of the following enzymes catalyzed reactions in glycolysis require(s) ATP as a substrate? A)...
4. Which of the following enzymes catalyzed reactions in glycolysis require(s) ATP as a substrate? A) Phosphoglycerate mutase E) Pyruvate kinase B) Aldolase F) Phosphofructokinase-1 C) Phosphoglycerate kinase G) Hexokinase D) Glyceraldehyde-3-phosphate dehydrogenase 5. Blood Lactate Levels during Vigorous Exercise The following graph shows the concentrations of lactate in blood plasma before, during, and after a 400 m sprint. Use your knowledge from chapter 14 to explain the causes of the rapid rise in lactate concentration? --Before-- - After Blood...
Which enzymes in glycolysis catalyze reactions thx are irreversible in cellular conditions? Select all that apply....
Which enzymes in glycolysis catalyze reactions thx are irreversible in cellular conditions? Select all that apply. 0 Select all that apply Hexokinase Phosphoglucoisomerase с Phosphofructokinase Aldolase Triose Phosphate Isomerase Glyceraldehyde-3-phosphate dehydrogenase Phosphoglycerate kinase H Phosphoglycerate Mutase Enolase Submit Pyruvate kinase
6. In question 5, what is the most important reaction involved in formation of lactate? A)...
6. In question 5, what is the most important reaction involved in formation of lactate? A) dihydroxyacetone phosphate glycerol 3-phosphate D) pyruvate → lactate B) oxaloacetate → malate E) isocitrate → a-ketoglutarate C) glucose 6-phosphate → fructose 6-phosphate 7. During the process in question 5 (the rapid rise in lactate concentration), the NADH must be reoxidized to NAD+. Which of the following enzymes will be most affected if NADH is not reoxidized? A) Pyruvate kinase. C) Phosphofructokinase-1. E) aldolase. B)...
27 biochem b.3 c. 3.3 d. 10 e. cannot be determined 27. Which of the following...
27 biochem
b.3 c. 3.3 d. 10 e. cannot be determined 27. Which of the following enzymes is correctly paired with an inhibitor? a. hexokinase: ATP b. phosphofructokinase-1: AMP C. pyruvate kinase: ATP . d. phosphofructokinase-2: citrate e. glyceraldehyde-3-phosphate dehydrogenase: 1,3-bisphosphoglycerate 28. The correct sequence of steps between succinyl-CoA and ATP in mammals to "preserve the energy of the thioester bond are: A. succinyl-phosphate. B. phosphohistidine. C. GTP. D. Acetyl-CoA. 2 A, B, C b. B, C, A
1. When the cell’s ATP supply is depleted, which of the following enzyme’s activity is increased?...
1. When the cell’s ATP supply is depleted, which of the following enzyme’s activity is increased? Hexokinase Pyruvate kinase Glucokinase Phosphofructokinase Explain why this enzyme activity is tied to ATP levels. 2. The pyruvate kinase catalyzed step is not a reversible reaction in glycolysis, how then does gluconeogenesis start from pyruvate? Show the mechanism of the first step of gluconeogenesis. 3. Which of the following cofactors do not form a covalent bond with enzymes' lysine residues? Lipoamide Biotin NADH Pyridoxyl...
16. Which reaction of glycolysis includes substrate-level phosphorylation, a very different mechanism than oxidative phosphorylation? A....
16. Which reaction of glycolysis includes substrate-level phosphorylation, a very different mechanism than oxidative phosphorylation? A. Phosphoglycerate kinase B. Hexokinase C. Pyruvate kinase D. Phosphofructokinase-1 E. All above 17. Which of the following would be an inappropriate biochemical response to low blood sugar? A. Increase gluconeogenesis to produce glucose. C. Increase pentose phosphate, nonoxidative phase. B. Increase pentose phosphate, oxidative phase. D. Inhibit glycolysis.
Which of the following enzyme catalyzes the first step of glycolysis? * Hexokinase Pyruvate kinase Glucokinase Phosphofructokinase-1
Which of the diagrams illustrates the way in which the rate of an enzyme-controlled reaction depends on substrate concentration? * А B Rate of reaction MÚN Substrate concentration A B D When starch and amylase are mixed in the presence of iodine solution, the blue-black colour rapidly disappears. This is due to the formation of which molecule? * glucose O glycogen sucrose O maltose Which of the following enzyme groups can catalyse oxidation reactions? * O phosphorylases isomerases hydrolases dehydrogenases...
Which enzymes in glycolysis use NAD+ as a cofactor? Select all that apply. O Select all that apply Hexokinase B Phosphoglucoisomerase Phosphofructokinase Aldolase Triose Phosphate Isomerase Glyceraldehyde-3-phosphate dehydrogenase Phosphoglycerate kinase H Phosphoglycerate Mutase Enolase Submit Pyruvate kinase
4. Which of the following enzymes catalyzed reactions in glycolysis require(s) ATP as a substrate? A) Phosphoglycerate mutase E) Pyruvate kinase B) Aldolase F) Phosphofructokinase-1 C) Phosphoglycerate kinase G) Hexokinase D) Glyceraldehyde-3-phosphate dehydrogenase 5. Blood Lactate Levels during Vigorous Exercise The following graph shows the concentrations of lactate in blood plasma before, during, and after a 400 m sprint. Use your knowledge from chapter 14 to explain the causes of the rapid rise in lactate concentration? --Before-- - After Blood...
Which enzymes in glycolysis catalyze reactions thx are irreversible in cellular conditions? Select all that apply. 0 Select all that apply Hexokinase Phosphoglucoisomerase с Phosphofructokinase Aldolase Triose Phosphate Isomerase Glyceraldehyde-3-phosphate dehydrogenase Phosphoglycerate kinase H Phosphoglycerate Mutase Enolase Submit Pyruvate kinase
6. In question 5, what is the most important reaction involved in formation of lactate? A) dihydroxyacetone phosphate glycerol 3-phosphate D) pyruvate → lactate B) oxaloacetate → malate E) isocitrate → a-ketoglutarate C) glucose 6-phosphate → fructose 6-phosphate 7. During the process in question 5 (the rapid rise in lactate concentration), the NADH must be reoxidized to NAD+. Which of the following enzymes will be most affected if NADH is not reoxidized? A) Pyruvate kinase. C) Phosphofructokinase-1. E) aldolase. B)...
27 biochem
b.3 c. 3.3 d. 10 e. cannot be determined 27. Which of the following enzymes is correctly paired with an inhibitor? a. hexokinase: ATP b. phosphofructokinase-1: AMP C. pyruvate kinase: ATP . d. phosphofructokinase-2: citrate e. glyceraldehyde-3-phosphate dehydrogenase: 1,3-bisphosphoglycerate 28. The correct sequence of steps between succinyl-CoA and ATP in mammals to "preserve the energy of the thioester bond are: A. succinyl-phosphate. B. phosphohistidine. C. GTP. D. Acetyl-CoA. 2 A, B, C b. B, C, A
16. Which reaction of glycolysis includes substrate-level phosphorylation, a very different mechanism than oxidative phosphorylation? A. Phosphoglycerate kinase B. Hexokinase C. Pyruvate kinase D. Phosphofructokinase-1 E. All above 17. Which of the following would be an inappropriate biochemical response to low blood sugar? A. Increase gluconeogenesis to produce glucose. C. Increase pentose phosphate, nonoxidative phase. B. Increase pentose phosphate, oxidative phase. D. Inhibit glycolysis.
Most questions answered within 3 hours.
-
Beta Enterprises, Inc. has a WACC of 11% and is considering a
project that requires a...
asked 1 minute from now -
1. Interferons elicit two types of responses to virus-infected
cells. What are these?
2. What are...
asked 9 minutes ago -
Manufacturer Limited ("Manufacturer") is a
dealer in carbon fiber. Stick Limited ("SL") makes
hockey sticks. On...
asked 15 minutes ago -
Two samples of n = 5 subjects were analyzed with an
independent-samples t-test, producing a t...
asked 14 minutes ago -
A bag of rice weighs 2.00 lb on Earth. What would it weigh on
the Moon,...
asked 19 minutes ago -
Discuss this concept: "In an economy without FIs, the level of
fund flows between household savers...
asked 24 minutes ago -
Rhonda Clark, a Slippery Rock, Pennsylvania, real estate
developer, has devised a regression model to help...
asked 29 minutes ago -
SO₂Cl₂(g) ⇌ SO₂(g) + Cl₂(g) Kp = 2.39 at 100°C. A quantity of
SO₂Cl₂ was introduced...
asked 52 minutes ago -
1. Using the ArrayList add() method, write the statement to
insert “July” in the first position...
asked 55 minutes ago -
Find the value of z such that 62.9% of the total area is to the
left...
asked 58 minutes ago -
How many moles are in 169 kg of Au?
asked 1 hour ago -
If
a measure entity (thing) is a vector how many different types of
information are required...
asked 1 hour ago