Question 1

The ____ of marine mammals receives normal blood supply during deep dives.

Accepted Answer

A)  lungs 
B)  heart 
C)  brain 
D)  blood vessels 
E)  heart, brain, and blood vessels 
A)  lungs 
B)  heart 
C)  brain 
D)  blood vessels 
E)  heart, brain, and blood vessels

Question 2

Match between columns
                        Premises: ventilation
perfusion
physiological respiration
cellular respiration
respiratory medium

Accepted Answer

The Answer of Environmental source and sink for respiratory gases is...

Question 3

An example of local control over breathing is ____.

Accepted Answer

A)  automated lung ventilation and perfusion adjustments to changing O2levels in the blood 
B)  the aortic bodies signaling an increase in breathing rate when blood pH is acidic 
C)  refinement by the pons respiratory group of contractions involved in inhalation and exhalation 
D)  the carotid bodies signaling an increase in breathing rate when O2levels are low 
E)  the ventral respiratory group signaling an increase in breathing rate and depth during exercise 
A)  automated lung ventilation and perfusion adjustments to changing O2levels in the blood 
B)  the aortic bodies signaling an increase in breathing rate when blood pH is acidic 
C)  refinement by the pons respiratory group of contractions involved in inhalation and exhalation 
D)  the carotid bodies signaling an increase in breathing rate when O2levels are low 
E)  the ventral respiratory group signaling an increase in breathing rate and depth during exercise

Question 4

Explain how a diving marine mammal increases its supply of stored O2, in spite of the fact that its lungs are collapsed at depths below 25 meters.

Accepted Answer

Marine mammals increase their

Question 5

Diffusion of respiratory gases is enhanced by ____.

Accepted Answer

A)  a large surface area 
B)  a thick epithelial layer 
C)  cool temperatures 
D)  the presence of active transport pumps 
E)  the presence of carbon dioxide 
A)  a large surface area 
B)  a thick epithelial layer 
C)  cool temperatures 
D)  the presence of active transport pumps 
E)  the presence of carbon dioxide

Question 6

During human inhalation, the diaphragm ____ and the external intercostal muscles ____.

Accepted Answer

A)  contracts; relax 
B)  relaxes; contract 
C)  contracts; contract 
D)  relaxes; relax 
E)  expands; vibrate 
A)  contracts; relax 
B)  relaxes; contract 
C)  contracts; contract 
D)  relaxes; relax 
E)  expands; vibrate

Question 7

What would you predict would happen in an area of the body where PO2is relatively low?

Accepted Answer

A)  O2would bind more readily to hemoglobin. 
B)  CO2would bind more readily to hemoglobin. 
C)  O2would release from hemoglobin. 
D)  CO2would release from hemoglobin. 
E)  binding of O2by hemoglobin would cease. 
A)  O2would bind more readily to hemoglobin. 
B)  CO2would bind more readily to hemoglobin. 
C)  O2would release from hemoglobin. 
D)  CO2would release from hemoglobin. 
E)  binding of O2by hemoglobin would cease.

Exam 46: Gas Exchange: the Respiratory System

The ____ of marine mammals receives normal blood supply during deep dives.

An example of local control over breathing is ____.

Explain how a diving marine mammal increases its supply of stored O2, in spite of the fact that its lungs are collapsed at depths below 25 meters.

Diffusion of respiratory gases is enhanced by ____.

During human inhalation, the diaphragm ____ and the external intercostal muscles ____.

What would you predict would happen in an area of the body where PO2is relatively low?

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Expression: From Dna to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technology: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

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Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Digestive Systems and Animal Nutrition

Regulating the Internal Environment: Osmoregulation, Excretion, and Thermoregulation

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

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Explain how a diving marine mammal increases its supply of stored O₂, in spite of the fact that its lungs are collapsed at depths below 25 meters.

During human inhalation, the diaphragm and the external intercostal muscles .

What would you predict would happen in an area of the body where PO₂is relatively low?