10 Questions
What is the main purpose of gas exchange in living organisms?
To provide oxygen for cellular respiration and remove carbon dioxide
Which type of organisms typically have a high surface-area to volume ratio for gas exchange through the cell membrane?
Small unicellular organisms
In most larger organisms, what specialized structures provide the large area needed for effective gas exchange?
Pulmonary alveoli
What is the function of gills in marine animals?
To exchange gases with the surrounding water
Why do small multicellular organisms like flatworms perform sufficient gas exchange across their skin or cuticle?
Because they lack specialized gas exchange structures
Which type of organism consists of a single cell?
Prokaryotic organism
What are the two general categories of organisms mentioned in the text?
Prokaryotic and eukaryotic
Which of the following is considered to be the oldest form of life?
Prokaryotic organisms
Which type of multicellular organism has reproductive unicells?
Multicellular organisms with gametes
Which type of organism has cells that depend on each other to survive?
Multicellular organisms
Test your knowledge of the physical process of gas exchange and how gases move across different surfaces through diffusion. Explore the efficiency of gas exchange systems in living organisms.
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