Question 1

Why does the excretion of wastes present a special problem in water conservation?

Accepted Answer

The excretion of wastes presents a speci...

Question 2

Insects and spiders have a unique excretory system consisting of ____________ tubules.

Accepted Answer

The answer of Insects and spiders have a unique excretory...

Question 3

Why is glucose found in glomerular filtrate but NOT in the urine?

Accepted Answer

A)   The kidney stores glucose as glycogen
B)   Kidney cells require glucose because energy is needed for active transport
C)   Glucose is reabsorbed back into the bloodstream
D)   Glucose is converted to amino acids in the kidney
E)   Glucose molecules are too large to pass through the tubulesF) A) and E)
G) B) and C)

Question 4

Why should stored fat become an important source of metabolic water in diving mammals? Would glucose be a better solution because it can be "burned" almost immediately?

Accepted Answer

Stored fat becomes an important source o...

Question 5

The ___________ of annelids and molluscs is an open,or "true," nephridium.

Accepted Answer

A)   protonephridium
B)   mesonephridium
C)   metanephridium
D)   nephridium
E)   eunephridiumF) D) and E)
G) A) and B)

Question 6

The most likely mechanism operating a contractile vacuole is

Accepted Answer

A)   proton pumps actively moving water.
B)   microtubules actively moving water molecules.
C)   sodium pumps keeping the sodium ions on the outside of the membrane.
D)   simple osmosis of water.
E)   proton pumps forming an ion gradient.F) A) and C)
G) A) and E)

Question 7

Urine production by the kidney is continuous,and the storage structure is the ______ ______.

Accepted Answer

The answer of Urine production by the kidney is continuous,and...

Question 8

Compare and contrast the arthropod Malpighian tubules with a human kidney.Be sure to outline the function of the Malpighian tubule and the vertebrate kidney in some detail.

Accepted Answer

The Malpighian tubules are part of the e...

Question 9

Compared to kangaroo rats,humans

Accepted Answer

A)   evaporate a higher proportion of water.
B)   have considerably more water in their feces.
C)   urinate considerably more.
D)   All of the choices are correct.E) B) and D)
F) B) and C)

Question 10

Freshwater animals

Accepted Answer

A)   lose water from their bodies osmotically.
B)   lose salt by outward diffusion.
C)   must keep the salt concentration of their body fluids lower than that of fresh water.
D)   must drink water to maintain dilute body fluids.
E)   are permanent and highly efficient hypoosmotic regulators.F) A) and E)
G) A) and D)

Question 11

The term "homeostasis" was coined by the American physiologist ______ ______.

Accepted Answer

The answer of The term "homeostasis" was coined by the...

Question 12

Describe what is meant by an organism functioning in an integrated way to maintain a constant internal environment around a "setpoint."

Accepted Answer

An organism functioning in an integrated...

Question 13

Terrestrial animals can replace water losses by getting some liquid from their food,drinking water,and

Accepted Answer

A)   absorbing moisture from the air.
B)   swimming in water periodically.
C)   forming metabolic water in the cells by oxidation of organic compounds.
D)   eating salt to retain water.
E)   forming water from the hydrogen and oxygen secured by the lungs from the air.F) A) and D)
G) A) and C)

Question 14

Why is homeostasis so important to animals? Why should any kind of constancy of the internal environment be important?

Accepted Answer

Homeostasis is crucial for animals becau...

Question 15

An increased amount of ADH leads to

Accepted Answer

A)   an increased amount of urine.
B)   a decreased amount of urine.
C)   no change in the amount of urine.
D)   kidney failure.
E)   none of the choices are correct.F) C) and D)
G) D) and E)

Question 16

Replacement of needed salt or disposal of excess salt against the gradient requires

Accepted Answer

A)   facilitated diffusion.
B)   active transport.
C)   a kidney system.
D)   impervious membranes, usually covered with mucus.
E)   a hydrogen ion pump.F) None of the above
G) A) and B)

Question 17

Sharks maintain osmotic equilibrium with the ocean water by the kidney conserving _______,allowing it to accumulate in the blood until osmolarity is near that of seawater.

Accepted Answer

A)   ammonia
B)   sodium ions
C)   calcium
D)   all salts
E)   ureaF) B) and E)
G) A) and D)

Question 18

Blood pressure in the capillaries forces a protein-free filtrate out of the

Accepted Answer

A)   glomerulus.
B)   proximal tubule.
C)   loop of Henle.
D)   distal tubule.
E)   renal pelvis.F) None of the above
G) B) and C)

Question 19

Freshwater animals tend to lose too much salt and gain too much ____________.

Accepted Answer

The answer of Freshwater animals tend to lose too much...

Question 20

What is the flatworm excretory organ called?

Accepted Answer

A)   Protonephridium
B)   Mesonephridium
C)   Metanephridium
D)   Nephridium
E)   EunephridiumF) C) and D)
G) C) and E)

Exam 30: Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Compare and contrast the arthropod Malpighian tubules with a human kidney.Be sure to outline the function of the Malpighian tubule and the vertebrate kidney in some detail.

Correct AnswerAnswered by ExamLex AIThe Malpighian tubules are part of the e...View AnswerShow Answer

Why does the excretion of wastes present a special problem in water conservation?

Correct AnswerAnswered by ExamLex AIThe excretion of wastes presents a speci...View AnswerShow Answer

Blood pressure in the capillaries forces a protein-free filtrate out of the

Correct AnswerverifiedShow Answer

The most likely mechanism operating a contractile vacuole is

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An increased amount of ADH leads to

Correct AnswerverifiedShow Answer

Why is homeostasis so important to animals? Why should any kind of constancy of the internal environment be important?

Correct AnswerAnswered by ExamLex AIHomeostasis is crucial for animals becau...View AnswerShow Answer

Sharks maintain osmotic equilibrium with the ocean water by the kidney conserving _______,allowing it to accumulate in the blood until osmolarity is near that of seawater.

Correct AnswerverifiedShow Answer

Why should stored fat become an important source of metabolic water in diving mammals? Would glucose be a better solution because it can be "burned" almost immediately?

Correct AnswerAnswered by ExamLex AIStored fat becomes an important source o...View AnswerShow Answer

What is the flatworm excretory organ called?

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Why is glucose found in glomerular filtrate but NOT in the urine?

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Freshwater animals

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Replacement of needed salt or disposal of excess salt against the gradient requires

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Compared to kangaroo rats,humans

Correct AnswerverifiedShow Answer

Describe what is meant by an organism functioning in an integrated way to maintain a constant internal environment around a "setpoint."

Correct AnswerAnswered by ExamLex AIAn organism functioning in an integrated...View AnswerShow Answer

Terrestrial animals can replace water losses by getting some liquid from their food,drinking water,and

Correct AnswerverifiedShow Answer

The term "homeostasis" was coined by the American physiologist ______ ______.

Correct AnswerverifiedShow Answer

Urine production by the kidney is continuous,and the storage structure is the ______ ______.

Correct AnswerverifiedShow Answer

Freshwater animals tend to lose too much salt and gain too much ____________.

Correct AnswerverifiedShow Answer

The ___________ of annelids and molluscs is an open,or "true," nephridium.

Correct AnswerverifiedShow Answer

Insects and spiders have a unique excretory system consisting of ____________ tubules.

Correct AnswerverifiedShow Answer

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The Malpighian tubules are part of the e...
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The excretion of wastes presents a speci...
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Homeostasis is crucial for animals becau...
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Stored fat becomes an important source o...
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An organism functioning in an integrated...
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The term "homeostasis" was coined by the American physiologist .

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Urine production by the kidney is continuous,and the storage structure is the .

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Correct Answer
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