Gas Exchange The Respiratory System - Biology Exploring | Biology+

Course

Introductory Biology

Study Pack

Set 1: Light and Life

Set 2: The Cell: an Overview

Set 3: Energy and Enzymes

Set 4: Cell Membranes and Signaling

Set 5: Cellular Respiration

Set 6: Photosynthesis

Set 7: Cell Cycles

Set 8: Genetic Recombination

Set 9: The Chromosomal Basis of Mendelian Inheritance

Set 10: Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

Set 11: DNA Structure, Replication, and Repair

Set 12: Gene Structure Expression, and Mutation

Set 13: Regulation of Gene Expression

Set 14: Dna Technologies

Set 15: Genomes

Set 16: Evolution: the Development of the Theory

Set 17: Microevolution: Changes Within Populations

Set 18: Speciation and Macroevolution

Set 19: Systematics and Phylogenetics: Revealing the Tree of Life

Set 20: Humans and Evolution

Set 21: Defining Life and Its Origins

Set 22: Viruses, Viroids, and Prions: Infectious Biological Particles

Set 23: Bacteria and Archaea

Set 24: Protists

Set 27: Animals

Set 28: Conservation of Biodiversity

Set 29: Population Ecology

Set 30: Species Interactions and Community Ecology

Set 31: Ecosystems

Set 32: Animal Behaviour

Set 33: Organization of the Plant Body

Set 34: Transport in Plants

Set 35: Reproduction and Development in Flowering Plants

Set 36: Plant Nutrition

Set 37: Plant Signals and Responses to the Environment

Set 38: Introduction to Animal Organization and Physiology

Set 39: Animal Nutrition

Set 40: Gas Exchange: the Respiratory System

Set 41: Internal Transport: the Circulatory System

Set 42: Regulation of the Internal Environment: Water, Solutes, and Temperature

Set 43: Control of Animal Processes: Endocrine Control

Set 44: Animal Reproduction

Set 45: Control of Animal Processes: Neural Control

Set 46: Muscles, Skeletons, and Body Movements

Set 40 Gas Exchange The Respiratory System

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Set 40 Gas Exchange The Respiratory System

(Multiple Choice)

Free

What is a disadvantage of air as a respiratory medium?

A) Air evaporates water from the respiratory surface.
B) Air requires less energy to ventilate over the respiratory surface.
C) Air is 1000 times less dense than water.
D) Air contains 30 times as much O₂ as water.

Answer

(Multiple Choice)

Free

Which of the following respiratory surfaces lack physical protection from the external environment?

A) internal gills
B) lungs
C) tracheal system tubes
D) external gills

Answer

(Multiple Choice)

Free

Why does countercurrent exchange optimize gas exchange across some gills?

A) It sustains an optimal thermal environment for gas exchange.
B) It optimizes perfusion to the respiratory surface.
C) It sustains an optimal respiratory gas concentration gradient.
D) It optimizes delivery of the respiratory medium to the respiratory surface.

Answer