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Questions and Answers
Diffusion is a rapid process that can fulfill oxygen requirements in multicellular organisms.
Diffusion is a rapid process that can fulfill oxygen requirements in multicellular organisms.
True (A)
In multicellular organisms, all cells can interact directly with the surrounding environment for oxygen supply.
In multicellular organisms, all cells can interact directly with the surrounding environment for oxygen supply.
False (B)
A transportation system is necessary for oxygen delivery in multicellular organisms due to the limitations of diffusion.
A transportation system is necessary for oxygen delivery in multicellular organisms due to the limitations of diffusion.
True (A)
Simple diffusion can adequately supply oxygen to all tissues in multicellular organisms.
Simple diffusion can adequately supply oxygen to all tissues in multicellular organisms.
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Oxygen requirements in multicellular organisms can be met without any specialized transportation system.
Oxygen requirements in multicellular organisms can be met without any specialized transportation system.
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Flashcards
Diffusion
Diffusion
The process where molecules move from a region of high concentration to low concentration, without any energy input.
Multicellular organisms
Multicellular organisms
Organisms composed of multiple cells, with specialized functions and interconnected systems.
Direct interaction with the environment
Direct interaction with the environment
The ability of all cells in a multicellular organism to directly interact with the surrounding environment.
Oxygen transport
Oxygen transport
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Why diffusion is insufficient for multicellular organisms?
Why diffusion is insufficient for multicellular organisms?
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Study Notes
Cellular Respiration and Oxygen Delivery
- Multicellular organisms, like humans, require efficient oxygen delivery to all cells.
- Direct diffusion of oxygen is insufficient for large organisms.
- Cells deep within the organism cannot directly access oxygen from the external environment.
- Diffusion is a slow process; it cannot supply the oxygen demands of complex organisms.
- Specialized transport systems (like circulatory systems in humans) are needed to ensure sufficient oxygen delivery to all body cells.
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Description
Explore the mechanisms of oxygen delivery in multicellular organisms, particularly humans. This quiz analyzes how diffusion limits oxygen supply and the necessity of specialized transport systems like the circulatory system for adequate cellular respiration.
