Chapter 12. Chapter 12

Problem-Solving Video Assessment

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Chapter 12 Problem-Solving Video Assessment

The following data pertain to a 34-kDa spherical protein embedded in a lipid membrane bilayer (viscosity = 0.75 poise) at 37°C. The density of this protein is 2.78 g cm-3.

1.

What is the radius of this protein?

1.1 x 10^-61 cm

2.0 x 10^-20 cm

1.7 x 10^-8 cm

1.7 x 10^-7 cm

3.3 x 10^-7 cm

_feedback_correct: Correct. _feedback_incorrect: Incorrect.

2.

What is the diffusion coefficient for this protein?

1.8 x 10^-7 cm² s^-1

1.8 x 10^-8 cm² s^-1

1.3 x 10^-8 cm² s^-1

2.1 x 10^-9 cm² s^-1

1.6 x 10^-9 cm² s^-1

_feedback_correct: Correct. _feedback_incorrect: Incorrect.

3.

What is the average distance traveled by this protein in 5 μs?

6.0 x 10^-4 cm

6.0 x 10^-7 cm

2.7 x 10^-7 cm

1.6 x 10^-11 cm

1.3 x 10^-25 cm

_feedback_correct: Correct. _feedback_incorrect: Incorrect.

4.

What is the average distance traveled by this protein in 500 μs?

1.6 x 10^-16 cm

1.3 x 10^-15 cm

8.5 x 10^-6 cm

1.9 x 10^-4 cm

6.0 x 10^-3 cm

_feedback_correct: Correct. _feedback_incorrect: Incorrect.

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Chapter 12. Chapter 12

Introduction

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