Question 1

Which of the following organisms is an ectotherm?

Accepted Answer

A) an owl 
B) an elephant 
C) a lizard 
D) a bat 
A) an owl 
B) an elephant 
C) a lizard 
D) a bat

Question 2

Match each description to a nephron tubule portion. Nephron tubule portions can be used more than once.
-site of reabsorption of nearly all glucose

Accepted Answer

A) ascending segment of the loop of Henle 
B) proximal convoluted tubule 
C) Bowman's capsule 
D) descending segment of the loop of Henle 
E) distal convoluted tubule 
A) ascending segment of the loop of Henle 
B) proximal convoluted tubule 
C) Bowman's capsule 
D) descending segment of the loop of Henle 
E) distal convoluted tubule

Question 3

Into which area does the descending segment of the loop of Henle extend?

Accepted Answer

A) into the renal pelvis 
B) into the renal medulla 
C) into the Bowman's capsule 
D) into the collecting ducts 
A) into the renal pelvis 
B) into the renal medulla 
C) into the Bowman's capsule 
D) into the collecting ducts

Question 4

What is the human temperature set point, typically?

Accepted Answer

A) It stays around 37.0°C. 
B) It ranges from about 35.5°C in the morning to about 37.7°C in the evening. 
C) It ranges from about 37.7°C in the morning to about 35.5°C in the evening. 
D) It ranges from about 37.3°C in the morning to about 34.7°C in the evening. 
A) It stays around 37.0°C. 
B) It ranges from about 35.5°C in the morning to about 37.7°C in the evening. 
C) It ranges from about 37.7°C in the morning to about 35.5°C in the evening. 
D) It ranges from about 37.3°C in the morning to about 34.7°C in the evening.

Question 5

In mammals, which structure does the urine drain out of before entering a collecting duct?

Accepted Answer

A) the distal convoluted tubule 
B) the descending segment of the loop of Henle 
C) the proximal convoluted tubule 
D) the ascending segment of the loop of Henle 
A) the distal convoluted tubule 
B) the descending segment of the loop of Henle 
C) the proximal convoluted tubule 
D) the ascending segment of the loop of Henle

Question 6

What is the typical osmolarity of seawater?

Accepted Answer

A) about 5 mOsm/L 
B) about 225 mOsm/L 
C) about 1000 mOsm/L 
D) about 1500 mOsm/L 
A) about 5 mOsm/L 
B) about 225 mOsm/L 
C) about 1000 mOsm/L 
D) about 1500 mOsm/L

Question 7

What is the tonicity of the urine of marine mammals compared with another fluid?

Accepted Answer

A) hyperosmotic, compared with seawater 
B) hypoosmotic, compared with seawater 
C) isoosmotic, compared with their body fluids 
D) hypoosmotic, compared with their body fluids 
A) hyperosmotic, compared with seawater 
B) hypoosmotic, compared with seawater 
C) isoosmotic, compared with their body fluids 
D) hypoosmotic, compared with their body fluids

Question 8

What is the name of the tubules that make up the excretory systems used by most annelids and adult mollusks?

Accepted Answer

A) hepatic tubules 
B) nephrons 
C) metanephridia 
D) Malpighian tubules 
A) hepatic tubules 
B) nephrons 
C) metanephridia 
D) Malpighian tubules

Question 9

Match each description to a nephron tubule portion. Nephron tubule portions can be used more than once.
-site where water and small substances are first passed into the nephron

Accepted Answer

A) ascending segment of the loop of Henle 
B) proximal convoluted tubule 
C) Bowman's capsule 
D) descending segment of the loop of Henle 
E) distal convoluted tubule 
A) ascending segment of the loop of Henle 
B) proximal convoluted tubule 
C) Bowman's capsule 
D) descending segment of the loop of Henle 
E) distal convoluted tubule

Question 10

Which process involves the transfer of heat from the surface of a body to a fluid that passes over the body's surface?

Accepted Answer

A) convection 
B) evaporation 
C) radiation 
D) conduction 
A) convection 
B) evaporation 
C) radiation 
D) conduction

Question 11

Which of the following help(s) maintain the pressure driving fluid into Bowman's capsule?

Accepted Answer

A) the renin-angiotensin-aldosterone system 
B) the antidiuretic hormone 
C) the diameters of the afferent and the efferent arterioles 
D) the diameters of the proximal and distal tubules 
A) the renin-angiotensin-aldosterone system 
B) the antidiuretic hormone 
C) the diameters of the afferent and the efferent arterioles 
D) the diameters of the proximal and distal tubules

Question 12

In mammals, essentially all of the glucose and amino acids from the filtrate get reabsorbed in one of the excretory tubule segments. In which segment does this occur?

Accepted Answer

A) in the proximal convoluted tubule 
B) in the descending segment of the loop of Henle 
C) in the ascending segment of the loop of Henle 
D) in the Bowman's capsule 
A) in the proximal convoluted tubule 
B) in the descending segment of the loop of Henle 
C) in the ascending segment of the loop of Henle 
D) in the Bowman's capsule

Question 13

Match each description to a nephron tubule portion. Nephron tubule portions can be used more than once.
-may start in the cortex and end in the medulla

Accepted Answer

A) ascending segment of the loop of Henle 
B) proximal convoluted tubule 
C) Bowman's capsule 
D) descending segment of the loop of Henle 
E) distal convoluted tubule 
A) ascending segment of the loop of Henle 
B) proximal convoluted tubule 
C) Bowman's capsule 
D) descending segment of the loop of Henle 
E) distal convoluted tubule

Exam 50: Regulating the Internal Environment

Which of the following organisms is an ectotherm?

Match each description to a nephron tubule portion. Nephron tubule portions can be used more than once. -site of reabsorption of nearly all glucose

Into which area does the descending segment of the loop of Henle extend?

What is the human temperature set point, typically?

In mammals, which structure does the urine drain out of before entering a collecting duct?

What is the typical osmolarity of seawater?

What is the tonicity of the urine of marine mammals compared with another fluid?

What is the name of the tubules that make up the excretory systems used by most annelids and adult mollusks?

Match each description to a nephron tubule portion. Nephron tubule portions can be used more than once. -site where water and small substances are first passed into the nephron

Which process involves the transfer of heat from the surface of a body to a fluid that passes over the body's surface?

Which of the following help(s) maintain the pressure driving fluid into Bowman's capsule?

In mammals, essentially all of the glucose and amino acids from the filtrate get reabsorbed in one of the excretory tubule segments. In which segment does this occur?

Match each description to a nephron tubule portion. Nephron tubule portions can be used more than once. -may start in the cortex and end in the medulla

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Defences Against Disease

Conservation and Evolutionary Physiology

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