Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their environment and identify their osmoregulatory mechanisms.

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Answer 1

Textbook Question

Chapter 44, Problem 1IQ

Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their environment and identify their osmoregulatory mechanisms.

Chapter 44, Problem 1IQ, Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their

Expert Solution & Answer

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

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Answer 2

Textbook Question

Chapter 44, Problem 1IQ

Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their environment and identify their osmoregulatory mechanisms.

Chapter 44, Problem 1IQ, Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their

Expert Solution & Answer

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

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Answer 3

Textbook Question

Chapter 44, Problem 1IQ

Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their environment and identify their osmoregulatory mechanisms.

Chapter 44, Problem 1IQ, Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their

Expert Solution & Answer

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

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Answer 4

Textbook Question

Chapter 44, Problem 1IQ

Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their environment and identify their osmoregulatory mechanisms.

Chapter 44, Problem 1IQ, Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their

Expert Solution & Answer

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

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Answer 5

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Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

Answer 8

Expert Solution & Answer

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

Answer 9

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Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To determine: Whether the following animals are isosmotic, hyperosmotic, or hypoosmotic to their environment and to identify their osmoregulatory mechanisms.

Introduction: The maintenance of osmotic pressure within the body is known as osmoregulation. Changes in osmotic pressure are usually sensed by the osmoreceptors that influence the downstream signaling pathways to maintain the homeostasis. Based on its osmotic regulation process the organism is classified into two types namely osmoregulators and osmoconformers. Osmoregulators concentrates and maintains the internal osmotic pressure whereas the osmoconformers involve in the matching of its body osmotic pressure to the environmental osmotic pressure.

Answer 12

Explanation of Solution

Animal	Osmotic relation to environment	Osmoregulatory mechanism
a. Marine invertebrate.	Isosmotic: This organism has an internal environment with the same osmotic pressure that is found in the external environment.	Marine invertebrate is the osmoconformers. Though they have the same osmotic pressure to that of environment this organism regulates the specific solutes for its biological functions. Examples are starfish, mussels, lobsters, and jellyfish.
b. Shark.	Slightly hyperosmotic: The shark has slightly higher osmotic pressure than that of its external environment. It has more salinity in the body than in the ocean.	Shark regulates the osmotic pressure by maintaining high amounts of urea and trimethylamine oxide (TMAO) in the body. The excess salts are excreted through kidney and in feces.
c. Marine bony fish	Hypoosmotic: The marine bony fish has less osmotic pressure when compared to its external environment.	This organism has the tendency to lose water through gills since it is hypoosmotic to the environment. However, it is compensated by drinking of seawater to maintain the osmotic pressure. Excess salt in the body is excreted through gills. This organism excretes less amount of urine.
d. Freshwater bony fish.	Hyperosmotic: The freshwater bony fish has higher osmotic pressure in its internal environment when compared to its external environment.	Due to the hypoosmotic condition in the external environment, there is more loss of salt from the body. Thus it maintains the osmotic pressure by preventing the loss of salt and intake of water. Therefore it produces more amount of dilute urine and it intakes the salt through gills.

Answer 13

Ch. 44 - Indicate whether the following animals are...Ch. 44 - Prob. 2IQ Ch. 44 - Which of the three excretory processes is least...Ch. 44 - a. What substances are removed from the blood...Ch. 44 - In the following diagram of a nephron and...Ch. 44 - a. What type of nephron enables the production of...Ch. 44 - Prob. 7IQ Ch. 44 - Provide the following information concerning the...Ch. 44 - Prob. 2SYK Ch. 44 - Prob. 1TYK

Indicate whether the following animals are isoosmotic, hyperosmotic, or hypoosmotic to their environment and identify their osmoregulatory mechanisms.

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