Question 1

What is the flatworm excretory organ called?

Accepted Answer

A)  Protonephridium 
B)  Mesonephridium 
C)  Metanephridium 
D)  Nephridium 
E)  Eunephridium 
A)  Protonephridium 
B)  Mesonephridium 
C)  Metanephridium 
D)  Nephridium 
E)  Eunephridium

Question 2

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 3

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. 
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.

Question 4

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. 
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.

Question 5

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. 
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.

Question 6

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

Accepted Answer

The excretion of wastes presents a speci

Question 7

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

Accepted Answer

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

Question 8

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 9

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 10

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)  urea 
A)  ammonia 
B)  sodium ions 
C)  calcium 
D)  all salts 
E)  urea

Question 11

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. 
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.

Question 12

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

Accepted Answer

A)  protonephridium 
B)  mesonephridium 
C)  metanephridium 
D)  nephridium 
E)  eunephridium 
A)  protonephridium 
B)  mesonephridium 
C)  metanephridium 
D)  nephridium 
E)  eunephridium

Question 13

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. 
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.

Question 14

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 tubules 
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 tubules

Question 15

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 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. 
A)  facilitated diffusion. 
B)  active transport. 
C)  a kidney system. 
D)  impervious membranes, usually covered with mucus. 
E)  a hydrogen ion pump.

Question 17

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

Accepted Answer

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

Question 18

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 19

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 20

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. 
A)  glomerulus. 
B)  proximal tubule. 
C)  loop of Henle. 
D)  distal tubule. 
E)  renal pelvis.

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

What is the flatworm excretory organ called?

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

Freshwater animals

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

Compared to kangaroo rats,humans

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

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

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

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.

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.

An increased amount of ADH leads to

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

The most likely mechanism operating a contractile vacuole is

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

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?

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

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

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

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

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

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

Molluscs

Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

Chaetognaths, Echinoderms, and Hemichordates

Chordates

Fishes

Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

Birds

Mammals

Support, protection, and Movement

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Chemical Coordination: Endocrine System

Immunity

Animal Behavior

Animal Distributions

Animal Ecology

Filters

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

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