Question 1

Which statement about amphibian nephrons is false?

Accepted Answer

A)  Nephrons start at Bowman's capsule. 
B)  Filtration occurs in the nephrons. 
C)  Nephron walls consist of a single layer of epithelia. 
D)  The loops of Henle are a few mm in length. 
A)  Nephrons start at Bowman's capsule. 
B)  Filtration occurs in the nephrons. 
C)  Nephron walls consist of a single layer of epithelia. 
D)  The loops of Henle are a few mm in length.

Question 2

What is the ability that makes kangaroo rats one of the best in the world among animals?

Accepted Answer

A)  They produce an incredibly concentrated urine. 
B)  They can run incredibly fast for their size. 
C)  They allow their body temperatures to increase to the highest of all animals. 
D)  They can slow their metabolism down more than any other mammal. 
A)  They produce an incredibly concentrated urine. 
B)  They can run incredibly fast for their size. 
C)  They allow their body temperatures to increase to the highest of all animals. 
D)  They can slow their metabolism down more than any other mammal.

Question 3

Which substance(s) may be found in the proximal convoluted tubule in the nephrons of amphibians?

Accepted Answer

A)  Sodium 
B)  Sodium and chloride 
C)  Glucose 
D)  Sodium, glucose, and chloride 
A)  Sodium 
B)  Sodium and chloride 
C)  Glucose 
D)  Sodium, glucose, and chloride

Question 4

In the collecting duct, urea reabsorption is mediated by

Accepted Answer

A)  the lipid portion of the plasma membrane. 
B)  antiport proteins. 
C)  symport proteins that are regulated by aldosterone. 
D)  protein transporters. 
A)  the lipid portion of the plasma membrane. 
B)  antiport proteins. 
C)  symport proteins that are regulated by aldosterone. 
D)  protein transporters.

Question 5

Refer to the figure shown.
  Where is K+ most likely to be secreted into the tubular fluid?

Accepted Answer

A)  II 
B)  III 
C)  IV 
D)  V 
A)  II 
B)  III 
C)  IV 
D)  V

Question 6

Kidney structure may vary from one species to another; however, all kidneys serve the same purpose. What are the common elements and functions of the kidney?

Accepted Answer

All kidneys consist of tubular elements

Question 7

In the nephrons of amphibians, glucose in the proximal convoluted tubule returns to the blood by

Accepted Answer

A)  simple diffusion. 
B)  facilitated diffusion. 
C)  primary active transport. 
D)  secondary active transport. 
A)  simple diffusion. 
B)  facilitated diffusion. 
C)  primary active transport. 
D)  secondary active transport.

Question 8

ADH acts specifically on the _______ by _______.

Accepted Answer

A)  collecting duct; removing aquaporin channels from the membrane 
B)  collecting duct; inserting aquaporin channels into the membrane 
C)  loop of Henle; removing aquaporin channels from the membrane 
D)  loop of Henle; inserting aquaporin channels into the membrane 
A)  collecting duct; removing aquaporin channels from the membrane 
B)  collecting duct; inserting aquaporin channels into the membrane 
C)  loop of Henle; removing aquaporin channels from the membrane 
D)  loop of Henle; inserting aquaporin channels into the membrane

Question 9

How is the loop of Henle important in concentrating urine if the fluid leaving the ascending loop of Henle is very diluted?

Accepted Answer

A)  The proximal convoluted tubule concentrates the urine after it exits the loop of Henle. 
B)  The loop of Henle concentrates the urea that is excreted in the collecting duct. 
C)  The loop of Henle is responsible for creating the concentration gradient used by the collecting duct to concentrate the urine. 
D)  The loop of Henle is responsible for storing the NaCl used to concentrate the urine in the colleting duct. 
A)  The proximal convoluted tubule concentrates the urine after it exits the loop of Henle. 
B)  The loop of Henle concentrates the urea that is excreted in the collecting duct. 
C)  The loop of Henle is responsible for creating the concentration gradient used by the collecting duct to concentrate the urine. 
D)  The loop of Henle is responsible for storing the NaCl used to concentrate the urine in the colleting duct.

Which statement about amphibian nephrons is false?

What is the ability that makes kangaroo rats one of the best in the world among animals?

Which substance(s) may be found in the proximal convoluted tubule in the nephrons of amphibians?

In the collecting duct, urea reabsorption is mediated by

Refer to the figure shown. Where is K⁺ most likely to be secreted into the tubular fluid?

Kidney structure may vary from one species to another; however, all kidneys serve the same purpose. What are the common elements and functions of the kidney?

In the nephrons of amphibians, glucose in the proximal convoluted tubule returns to the blood by

ADH acts specifically on the _ by _.

How is the loop of Henle important in concentrating urine if the fluid leaving the ascending loop of Henle is very diluted?

Animals and Environments: Function on the Ecological Stage

Molecules and Cells in Animal Physiology

Genomics, Proteomics, and Related Approaches to Physiology

Physiological Development and Epigenetics

Transport of Solutes and Water

Nutrition, Feeding, and Digestion

Energy Metabolism

Aerobic and Anaerobic Forms of Metabolism

The Energetics of Aerobic Activity

Thermal Relations

Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Neurons

Synapses

Sensory Processes

Nervous System Organization and Biological Clocks

Endocrine and Neuroendocrine Physiology

Reproduction

Integrating Systems at Work: Animal Navigation

Control of Movement

Muscle

Movement and Muscle at Work: Plasticity in Response to Use and Disuse

Introduction to Oxygen and Carbon Dioxide in Physiology

External Respiration: the Physiology of Breathing

Transport of Oxygen and Carbon Dioxide in Body Fluids With an Introduction to Acid- Base Physiology

Circulation

Oxygen, Carbon Dioxide, and Internal Transport at Work: Diving by Marine Mammals

Water and Salt Physiology: Introduction and Mechanisms

Water, Salts, and Excretion at Work: Mammals of Deserts and Dry Savannas

Water and Salt Physiology of Animals in Their Environments

Filters

Exam 29: Kidneys and Excretion With Notes on Nitrogen Excretion

Which statement about amphibian nephrons is false?

What is the ability that makes kangaroo rats one of the best in the world among animals?

Which substance(s) may be found in the proximal convoluted tubule in the nephrons of amphibians?

In the collecting duct, urea reabsorption is mediated by

Refer to the figure shown. Where is K+ most likely to be secreted into the tubular fluid?

Kidney structure may vary from one species to another; however, all kidneys serve the same purpose. What are the common elements and functions of the kidney?

In the nephrons of amphibians, glucose in the proximal convoluted tubule returns to the blood by

ADH acts specifically on the _______ by _______.

How is the loop of Henle important in concentrating urine if the fluid leaving the ascending loop of Henle is very diluted?

Animals and Environments: Function on the Ecological Stage

Molecules and Cells in Animal Physiology

Genomics, Proteomics, and Related Approaches to Physiology

Physiological Development and Epigenetics

Transport of Solutes and Water

Nutrition, Feeding, and Digestion

Energy Metabolism

Aerobic and Anaerobic Forms of Metabolism

The Energetics of Aerobic Activity

Thermal Relations

Food, Energy, and Temperature at Work: The Lives of Mammals in Frigid Places

Neurons

Synapses

Sensory Processes

Nervous System Organization and Biological Clocks

Endocrine and Neuroendocrine Physiology

Reproduction

Integrating Systems at Work: Animal Navigation

Control of Movement

Muscle

Movement and Muscle at Work: Plasticity in Response to Use and Disuse

Introduction to Oxygen and Carbon Dioxide in Physiology

External Respiration: the Physiology of Breathing

Transport of Oxygen and Carbon Dioxide in Body Fluids With an Introduction to Acid- Base Physiology

Circulation

Oxygen, Carbon Dioxide, and Internal Transport at Work: Diving by Marine Mammals

Water and Salt Physiology: Introduction and Mechanisms

Water, Salts, and Excretion at Work: Mammals of Deserts and Dry Savannas

Water and Salt Physiology of Animals in Their Environments

Filters

Refer to the figure shown. Where is K⁺ most likely to be secreted into the tubular fluid?

ADH acts specifically on the _ by _.