Why the evolution of multicellular organisms has led to the development of circulatory systems. Introduction: A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

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Answer 1

Question

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

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A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation? The cell membranes are more resistant than normal. An isotonic solution had been added instead of water. A solution of 0.1 M NaCl had been added instead of water. Not enough water had been added to the red blood cell pellet. The man had sickle-cell anaemia.

With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Answer 2

Question

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

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Answer 3

Question

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

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Answer 4

Question

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

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Answer 5

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

Answer 6

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

Answer 7

Chapter 22, Problem 1SA

Summary Introduction

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Answer 8

Expert Solution & Answer

Explanation of Solution

Cells in a multicellular organism are not in direct contact with the external environment. This means that the exchange of gases, uptake of nutrients, expulsion of wastes and other such processes cannot be carried out in a simple, straightforward way. Simple diffusion, like in the case of unicellular organisms, is not enough to perform these functions. Dedicated delivery and waste removal systems became necessary. This is the reason for the development of the circulatory systems.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

In multicellular organisms, most of the cells of an organism are not in direct contact with the external environment. Diffusion cannot adequately transport essential nutrients and wastes into and out of the cells. A dedicated delivery and removal system became necessary, and this led to the development of circulatory systems.

Answer 12

Ch. 22 - Prob. 1SA Ch. 22 - Prob. 2SA Ch. 22 - Prob. 3SA Ch. 22 - Prob. 4SA Ch. 22 - Prob. 5SA Ch. 22 - Prob. 6SA Ch. 22 - Prob. 7SA Ch. 22 - Prob. 8SA Ch. 22 - Prob. 9SA Ch. 22 - Prob. 10SA

Why the evolution of multicellular organisms has led to the development of circulatory systems. Introduction: A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Videos

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Explanation of Solution

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Chapter 22 Solutions

Why the evolution of multicellular organisms has led to the development of circulatory systems. Introduction: A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Videos

To analyze: Why the evolution of multicellular organisms has led to the development of circulatory systems. Introduction: A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.

Explanation of Solution

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Chapter 22 Solutions

To analyze:

Why the evolution of multicellular organisms has led to the development of circulatory systems.

Introduction:

A circulatory system is responsible for transport of various substances through the body of the organism. There are various types of circulatory systems.