Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do. a. fewer nephrons b. longer nephron loops c. shorter nephron loops d. longer collecting ducts e. longer convoluted tubules

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 23, Problem 9TYR

Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do.

a. fewer nephrons

b. longer nephron loops

c. shorter nephron loops

d. longer collecting ducts

e. longer convoluted tubules

Expert Solution & Answer

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Want to see more full solutions like this?

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

Students have asked these similar questions

Using the data provided on the mean body mass and horn size of 4-year-old male sheep, draw a scatterplot graph to examine how body mass and horn size changed over time.

Please write a 500-word report about the intake of saturated fat, sodium, alcoholic beverages, or added sugar in America. Choose ONE of these and write about what is recommended by the Dietary Guidelines for Americans (guideline #4) and why Americans exceed the intake of that nutrient. Explain what we could do as a society and/or individuals to reduce our intake of your chosen nutrient.

Write a 500-word report indicating how you can change the quantity or quality of TWO nutrients where your intake was LOWER than what is recommended by the Dietary Guidelines for Americans and/or the DRIs. Indicate how the lack of the nutrient may affect your health. For full credit, all of the following points must be addressed and elaborated on in more detail for each nutrient: The name of the nutrient At least 2 main functions of the nutrient (example: “Vitamin D regulates calcium levels in the blood and calcification of bones.”) Your percent intake compared to the RDA/DRI (example “I consumed 50% of the RDA for vitamin D”) Indicate why your intake was below the recommendations (example: “I only had one serving of dairy products and that was why I was below the recommendations for vitamin D”) How would you change your dietary pattern to meet the recommendations? – be sure to list specific foods (example: “I would add a yogurt and a glass of milk to each day in order to increase my…

Answer 2

Textbook Question

Chapter 23, Problem 9TYR

Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do.

a. fewer nephrons

b. longer nephron loops

c. shorter nephron loops

d. longer collecting ducts

e. longer convoluted tubules

Expert Solution & Answer

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Want to see more full solutions like this?

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

Answer 3

Textbook Question

Chapter 23, Problem 9TYR

Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do.

a. fewer nephrons

b. longer nephron loops

c. shorter nephron loops

d. longer collecting ducts

e. longer convoluted tubules

Expert Solution & Answer

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Want to see more full solutions like this?

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

Answer 4

Textbook Question

Chapter 23, Problem 9TYR

Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do.

a. fewer nephrons

b. longer nephron loops

c. shorter nephron loops

d. longer collecting ducts

e. longer convoluted tubules

Expert Solution & Answer

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Want to see more full solutions like this?

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

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

The kidney’s structural unit is nephrons. Glomeruli are a network of capillaries that help in blood filtration. This yields filtered water and soluble substances into a cup-like sac called the Bowman’s capsule. Glomerulus is supported structurally by glomerular mesangial cells.

Answer 12

Answer to Problem 9TYR

Correct answer:

Beavers have relatively little need to conserve water and could therefore be expected to have shorter nephron loops than humans do. Therefore, option c is correct.

Answer 13

Explanation of Solution

Justify reasons for the correct statement:

Animals that are in need to preserve water have numerous and lengthier nephron loops compared to the other animals with a slight need to conserve water.

Option (c) is given as “shorter nephron loop”.

Due to the absence of a nephron loop, the amphibians and fish produce urine that is isotonic to their blood plasma. For example, beavers, which are aquatic mammals, have smaller nephron loops, and thus the conservation of water is less.

Hence, option (c) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “fewer nephrons”.

Humans can survive with few nephrons, but the output of urine will be only 30mL per hour. Inadequate nephrons will lead to uremia. Hence, it is a wrong answer.

Option (b) is given as “longer nephron loops”.

The longer length of the loop helps in more reabsorption of salts in the medulla and increases more the volume of water to be absorbed. Hence, it is a wrong answer.

Option (d) is given as “longer collecting ducts”.

The longer collecting duct aids in making the urine more concentrated by absorbing more volume water in the medulla. Hence, it is a wrong answer.

Option (e) is given as “longer convoluted tubules”.

The proximal convoluted tubule is the longest of the convoluted tubules, and its major purpose is absorption. Hence, it is a wrong answer.

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

Answer 14

Conclusion

The beavers normally have a shorter nephron loop because there is no need for water conservation, as they are aquatic mammals.

Answer 15

Ch. 23.1 - State at least four functions of the kidneys other...Ch. 23.1 - Prob. 2BYGO Ch. 23.1 - Prob. 3BYGO Ch. 23.1 - Prob. 1AYLO Ch. 23.1 - Prob. 2AYLO Ch. 23.1 - Prob. 3AYLO Ch. 23.1 - Blood urea nitrogen, azotemia, and uremia, and the...Ch. 23.1 - Prob. 5AYLO Ch. 23.2 - Prob. 4BYGO Ch. 23.2 - Prob. 5BYGO

Beavers have relatively little need to conserve water and could therefore be expected to have _______ than humans do. a. fewer nephrons b. longer nephron loops c. shorter nephron loops d. longer collecting ducts e. longer convoluted tubules

Solution Summary: The author explains that the nephrons are a network of capillaries that help in blood filtration.

Videos

Answer to Problem 9TYR

Explanation of Solution

Want to see more full solutions like this?

Chapter 23 Solutions

Additional Science Textbook Solutions