The concentration of PEP at 25°C, assuming that the pyruvate kinase reaction is at equilibrium in the cell. Introduction : Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is one of the phosphoryl group donors in the synthesis of molecules of ATP during glycolysis.

Question

Want to see the full answer?

Answer 1

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 15, Problem 2P

(a)

Summary Introduction

To calculate: The concentration of PEP at 25°C, assuming that the pyruvate kinase reaction is at equilibrium in the cell.

Introduction:

Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is one of the phosphoryl group donors in the synthesis of molecules of ATP during glycolysis.

(b)

Summary Introduction

To compare: The values of concentration of PEP at 25 °C with the physiological concentration of PEP in human erythrocyte (0.23mM).

Introduction:

Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is a phosphoryl group donor in the synthesis of molecules of ATP during glycolysis.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

The preferred substrate is T because the enzyme half-saturates at 7.00 mM for T, but requires 28.0 mM for U, and 112 mM for S. b Question Content Area The rate constant k 2 with substrate S is 9.60×107 sec-1, with substrate T, k 2 = 6.00×104 sec-1, and with substrate U, k 2 = 2.40×106 sec-1. Calculate the catalytic efficiency with S, T, and U. Catalytic efficiency with S = Catalytic efficiency with T = Catalytic efficiency with U = Does enzyme A use substrate S, substrate T, or substrate U with greater catalytic efficiency?

Fumerase catalyzes the conversion of fumerate to malate. fumerate + H2O ⇋ malate The turnover number, kcat, for fumerase is 8.00×102 sec-1. The Km of this enzyme for fumerate is 5.00×10-3 μmol mL-1. a In an experiment using 2.00×10-3 μmol·mL-1, what is Vmax?

Suppose you wanted to make a buffer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If the final solution was 0.18 M in KH2PO4, you would need 0.25 M Na2HPO4. Now assume you wish to make a buffer at the same pH, using the same substances, but want the total phosphate molarity ([HPO42−]+[H2PO−4]) to equal 0.20 M. What concentration of the Na2HPO4 would be required?

Answer 2

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 15, Problem 2P

(a)

Summary Introduction

To calculate: The concentration of PEP at 25°C, assuming that the pyruvate kinase reaction is at equilibrium in the cell.

Introduction:

Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is one of the phosphoryl group donors in the synthesis of molecules of ATP during glycolysis.

(b)

Summary Introduction

To compare: The values of concentration of PEP at 25 °C with the physiological concentration of PEP in human erythrocyte (0.23mM).

Introduction:

Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is a phosphoryl group donor in the synthesis of molecules of ATP during glycolysis.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 15, Problem 2P

(a)

Summary Introduction

To calculate: The concentration of PEP at 25°C, assuming that the pyruvate kinase reaction is at equilibrium in the cell.

Introduction:

Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is one of the phosphoryl group donors in the synthesis of molecules of ATP during glycolysis.

(b)

Summary Introduction

To compare: The values of concentration of PEP at 25 °C with the physiological concentration of PEP in human erythrocyte (0.23mM).

Introduction:

Glycolysis is the first stage of cellular respiration in which glucose is broken down into two pyruvic acid molecules by the action of enzymes which results in formation of net two ATP molecules. Phosphoenolpyruvate is a phosphoryl group donor in the synthesis of molecules of ATP during glycolysis.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Set of metabolic processes and reactions that produce energy from organic substances such as glucose. Cellular respiration takes place in the organism’s cells, where the chemical energy from nutrients or molecules of oxygen is converted into adenosine triphosphate (ATP). Cellular respiration that occurs in the presence of oxygen is called aerobic respiration; in the absence of oxygen, it is called anaerobic respiration.

Chapter 15, Problem 2P

(a)

Summary Introduction