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Questions and Answers
What is the process of exchange of O2 from the atmosphere with CO2 produced by the cells commonly known as?
What is the process of exchange of O2 from the atmosphere with CO2 produced by the cells commonly known as?
Which organisms exchange O2 with CO2 by simple diffusion over their entire body surface?
Which organisms exchange O2 with CO2 by simple diffusion over their entire body surface?
What do moist cuticles help earthworms with in the exchange of gases?
What do moist cuticles help earthworms with in the exchange of gases?
What is the main gas exchanged by insects through their network of tracheal tubes?
What is the main gas exchanged by insects through their network of tracheal tubes?
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How do lower invertebrates like sponges exchange gases?
How do lower invertebrates like sponges exchange gases?
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What is the main purpose of oxygen (O2) for organisms?
What is the main purpose of oxygen (O2) for organisms?
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How do lower invertebrates like sponges exchange gases?
How do lower invertebrates like sponges exchange gases?
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Which respiratory mechanism is used by earthworms for gas exchange?
Which respiratory mechanism is used by earthworms for gas exchange?
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What is the harmful gas released during catabolic reactions in organisms?
What is the harmful gas released during catabolic reactions in organisms?
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What do insects use to transport atmospheric air within their bodies for gas exchange?
What do insects use to transport atmospheric air within their bodies for gas exchange?
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Study Notes
Gas Exchange in Organisms
- The process of exchanging O2 from the atmosphere with CO2 produced by cells is commonly known as respiration.
Simple Diffusion in Organisms
- Simple multicellular organisms, such as flatworms, exchange O2 with CO2 by simple diffusion over their entire body surface.
Gas Exchange in Earthworms
- Moist cuticles help earthworms exchange gases by maintaining a thin layer of moisture on their skin, allowing for diffusion of gases.
- Earthworms use a respiratory mechanism involving contraction and relaxation of their body muscles to facilitate gas exchange.
Insects' Respiratory System
- The main gas exchanged by insects through their network of tracheal tubes is oxygen (O2).
- Insects use tracheae to transport atmospheric air within their bodies for gas exchange.
Gas Exchange in Lower Invertebrates
- Lower invertebrates like sponges exchange gases through diffusion from the surrounding water into their cells.
- This process occurs through their large surface area-to-volume ratio, allowing for efficient diffusion of gases.
Importance of Oxygen
- The main purpose of oxygen (O2) for organisms is to support cellular respiration, which releases energy from nutrients.
Harmful Gas Released
- The harmful gas released during catabolic reactions in organisms is carbon dioxide (CO2).
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Description
Test your knowledge of Chapter 17: Breathing and Exchange of Gases from Biology. Explore topics such as respiratory organs, breathing mechanisms, gas exchange, gas transport, regulation of respiration, and disorders of the respiratory system.
