Whether ethanol is likely to cross a membrane by mediated or non-mediated transport. Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Question

Want to see the full answer?

Answer 1

Question

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 2

Question

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Question

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 6

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 7

Chapter 10, Problem 5E

(a)

Summary Introduction

To identify: Whether ethanol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. Some membrane permeable substance can cross the membrane, but some substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 8

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 9

(b)

Summary Introduction

To identify: Whether glycine is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 10

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 11

(c)

Summary Introduction

To identify: Whether cholesterol is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane, and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffuse directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 12

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 13

(d)

Summary Introduction

To identify: Whether ATP is likely to cross a membrane by mediated or non-mediated transport.

Concept introduction: The free energy change for moving a substance across a membrane depends upon the concentrations on both sides of the membrane and in case of ions, free energy change depends upon the membrane potential. A substance cannot be diffused directly across a membrane; it needs some protein-based mediator to move across the plasma membrane of the cell. Non-mediated transport is the process of simple diffusion. Mediated transport is constituted through the action of definite carrier protein molecules.

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 17

Ch. 10 - Prob. 1E Ch. 10 - 2. (a) Calculate the chemical potential difference...Ch. 10 - Prob. 3E Ch. 10 - 4. Calculate the free energy required to move 1...Ch. 10 - 5. Indicate whether the following compounds are...Ch. 10 - 6. Rank the rate of transmembrane diffusion of the...Ch. 10 - 7. The smallest ?-barrel protein contains only...Ch. 10 - 8. Which amino acids would you expect to be...Ch. 10 - Prob. 9E Ch. 10 - 10. In addition to neurons, muscle cells undergo...

Concept explainers

Videos

Want to see the full answer?

Chapter 10 Solutions