Select the one false statement about mucous and serous membranes. a. The epithelial type is the same in all serous membranes, but there are different epithelial types in different mucous membranes. b. Serous membranes line closed body cavities, whereas mucous membranes line body cavities open to the outside. c. Serous membranes always produce serous fluid, and mucous membranes always secrete mucus. d. Both membranes contain an epithelium plus a layer of loose connective tissue.

Question

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Answer 1

Textbook Question

Chapter 4, Problem 1MC

Select the one false statement about mucous and serous membranes.

a. The epithelial type is the same in all serous membranes, but there are different epithelial types in different mucous membranes.

b. Serous membranes line closed body cavities, whereas mucous membranes line body cavities open to the outside.

c. Serous membranes always produce serous fluid, and mucous membranes always secrete mucus.

d. Both membranes contain an epithelium plus a layer of loose connective tissue.

Expert Solution & Answer

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

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Answer 2

Textbook Question

Chapter 4, Problem 1MC

Select the one false statement about mucous and serous membranes.

a. The epithelial type is the same in all serous membranes, but there are different epithelial types in different mucous membranes.

b. Serous membranes line closed body cavities, whereas mucous membranes line body cavities open to the outside.

c. Serous membranes always produce serous fluid, and mucous membranes always secrete mucus.

d. Both membranes contain an epithelium plus a layer of loose connective tissue.

Expert Solution & Answer

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

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Answer 3

Textbook Question

Chapter 4, Problem 1MC

Select the one false statement about mucous and serous membranes.

a. The epithelial type is the same in all serous membranes, but there are different epithelial types in different mucous membranes.

b. Serous membranes line closed body cavities, whereas mucous membranes line body cavities open to the outside.

c. Serous membranes always produce serous fluid, and mucous membranes always secrete mucus.

d. Both membranes contain an epithelium plus a layer of loose connective tissue.

Expert Solution & Answer

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 4, Problem 1MC

Select the one false statement about mucous and serous membranes.

a. The epithelial type is the same in all serous membranes, but there are different epithelial types in different mucous membranes.

b. Serous membranes line closed body cavities, whereas mucous membranes line body cavities open to the outside.

c. Serous membranes always produce serous fluid, and mucous membranes always secrete mucus.

d. Both membranes contain an epithelium plus a layer of loose connective tissue.

Expert Solution & Answer

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

The body surface is covered by several membranes and these membranes also line the body cavity. Body membranes often form lubricating protective sheets around the organs. Epithelial membranes and connective tissue membranes are the two major groups constituting the body membranes.

Answer 12

Answer to Problem 1MC

Correct answer:

The statement that the serous membrane always produces serous fluid and mucous membrane always secrete mucus is incorrect.

Justification for the correct answer:

Option (c) is given that the serous membranes and the mucous membrane always produce the serous fluid and mucous respectively. The mucosa of the digestive tract and respiratory tract are also capable of producing a large amount of lubricating mucus, which is protective in nature. On the other hand, the mucous membrane of the urinary tract cannot secrete mucous.

The serous membrane is composed of a simple squamous epithelial layer, which rests on the thin layer of areolar connective tissue. The serosa occurs in a pair of the parietal and visceral layer. Both of these serous membranes secrete a thin, clear fluid called the serous fluid. Hence, option (c) is correct.

Answer 13

Explanation of Solution

Explanation for incorrect answers:

Option (a) is given that all the serous membranes are made up of same type of epithelial, but different mucous membranes are made up of different epithelial types. The epithelial membrane mainly constitutes the cutaneous, mucous, and serous (serosa) membranes. The serosa is composed of a simple squamous layer existing on a loose connective tissue. However, the mucous lines the body cavities opened to the exterior environment. Therefore, it is composed of either simple columnar epithelial or stratified squamous existing on a loose connective tissue. So, it is an incorrect option.

Option (b) is given that the closed body cavities are lined by the serous membranes, whereas the mucous membranes majorly lines the body cavities, which open to the outside. The body cavities, which are close to the exterior environment, are lined by the serosa of the epithelial membrane. The serous layers are separated by the serous fluid secreted by those layers, not by air. So, it is an incorrect option.

Option (d) is given that both the membranes are made up of an epithelium as well as the layer of the loose connective tissue. The epithelial membrane of the serosa and the mucosa is made up of a simple squamous epithelium, which exists on the layer of a loose connective tissue. So, it is an incorrect option.

Hence, options (a), (b), and (d) are incorrect.

Answer 14

Conclusion

Thus, the serosa always produces serous fluid, but the mucosa does not always secrete mucus in the body.

Answer 15

Ch. 4 - Select the one false statement about mucous and...Ch. 4 - 2. Serous membranes a. line the mouth. b. have...Ch. 4 - 3. Which is not a component of sweat? a....Ch. 4 - Which structure is not associated with a hair? a....Ch. 4 - In investigating the cause of thinning hair, which...Ch. 4 - Which structure is not associated with a nail? a....Ch. 4 - 7. Which one of the following is not associated...Ch. 4 - Which of the following is not a skin structure? a....Ch. 4 - 9. Match the structures of the right with their...Ch. 4 - 10. What is the name of the connective tissue...

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