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Questions and Answers
What is the primary purpose of gas exchange in living organisms?
What is the primary purpose of gas exchange in living organisms?
- To generate energy for cellular respiration
- To facilitate the diffusion of gases between the organism and its environment (correct)
- To maintain a balance between internal and external gases
- To release excess gases from the body
Which structure is typically the gas exchange membrane in small unicellular organisms?
Which structure is typically the gas exchange membrane in small unicellular organisms?
- Cell membrane (correct)
- Gills
- Pulmonary alveoli
- Spongy mesophylls
In which organisms is the skin or cuticle used for sufficient gas exchange?
In which organisms is the skin or cuticle used for sufficient gas exchange?
- Small unicellular organisms
- Flatworms (correct)
- Bacteria
- Large multicellular organisms
Why do most larger organisms require specialized structures for gas exchange?
Why do most larger organisms require specialized structures for gas exchange?
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What is the role of gills, pulmonary alveoli, and spongy mesophylls in larger organisms?
What is the role of gills, pulmonary alveoli, and spongy mesophylls in larger organisms?
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