The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors. Introduction: The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

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Answer 1

Question

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

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Answer 2

Question

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

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Answer 3

Question

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

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Answer 4

Question

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

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Answer 5

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

Answer 6

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

Answer 7

Chapter 18, Problem 1RTC

Summary Introduction

To determine:

The reason behind the polarity of the microtubules, how they are organized within the cell and to explain how their polarity is related to the intracellular movements powered by microtubule-dependent motors.

Introduction:

The function of the microtubules is to give support, shape to the cell, participate in motor functions and transport organelles. Microtubules are polar filaments of the cells; they have different polarity on both the ends. One end is the plus one which grows fast and the other end is the minus one which grows slow.

Answer 8

Expert Solution & Answer

Explanation of Solution

The reason for the polarity of the microtubules is explained below:

The arrangement of the tubulin proteins in the microtubules defines their polarity.Tubulin protein is of two types- alpha-tubulin and beta-tubulin. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

The way microtubules are organized in a cell also depends on their polarity- the (+) end lies on the outer side and the(−) end lies towards the inner side of the cell. There are Microtubules Organizing Centers inside the cell which helps in the arrangement of microtubules.

There are two microtubule-bound proteins which help in their intracellular movement − Kinesin and Dynein. Kinesis helps in moving them towards the (+) end and Dynein helps in moving towards the (-) end, thus facilitating their intracellular movement.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

The arrangement of the tubulin proteins in the microtubules defines their polarity. Alpha-tubulin goes to the (+) end and beta-tubulin goes to the (−) end of the microtubules.

Answer 12

Ch. 18 - Prob. 1RTC Ch. 18 - Prob. 2RTC Ch. 18 - Prob. 3RTC Ch. 18 - Prob. 4RTC Ch. 18 - Prob. 5RTC Ch. 18 - Prob. 6RTC Ch. 18 - Prob. 7RTC Ch. 18 - Prob. 8RTC Ch. 18 - Prob. 9RTC Ch. 18 - Prob. 10RTC

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