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What are The air sacs in your lungs that create a large surface area for diffusion called?
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Why is a large surface area necessary for the alveoli in the lungs?
According to fick's law rate of diffusion =(proportional to)= Surface area x Diffusion gradient Diffusion Pathway thickness So for a sufficient rate of diffusion, Surface area must be large The diffusion pathway is already at it's minimun of 1 cell thick and the gradient is harder to adjust. There are around 600 million alveoli in the lungs that have a cummulitive surface area of around 70m2.
How are living organisms adapted to increase posibility of diffusion?
they have a large surface area and are important
How can capillaries allow gas exchange?
Large surface area + small radius for diffusion.
What is a large wind driven surface currents that create circular movements in the ocean?
What is a large wind driven surface currents that create circular movements in the ocean?
What is the movement of a substance from where it is in large amounts to where it is in small amounts called?
diffusion
What are the characteristics of gaseous exchange surfaces?
Features of gas exchange surfacesHave a large surface area relative to the volume of the organism.They are thin, so have a short diffusion pathway.They have a moist surface where gases can dissolve first before they diffuse in our out.They are able to maintain the diffusion gradient down which the gases can diffuse.
How are synapses adapted for diffusion?
The synapse releases a chemical that can diffuse across the gap between two neurones. The synapse has a large surface area, which means diffusion of the chemical can occur at a higher rate.
What 2 features of a villi help the small intestine function?
Large surface area Thin- Short distance for diffusion
What is the respiratory surface of a plant?
A respiratory surface is located anywhere in an animal or human being where gas exchange occurs. A respiratory surface is located anywhere in an animal or human being where gas exchange occurs.
Adaptive feature of trachea and alveoli?
Trachea have cartillage rings which support it. And the Alveoli has large surface area for diffusion and its moist and thin.
What are the adaptation that speed up diffusion in living organisms?
Chemotaxis - Natural movement of cells along a concentration gradient, either away or towards chemical stimulus Diffusion distances are short Concentration Gradients are maintained Diffusion surfaces are large
What are features of gaseous exchange surfaces in animals?
Have a large surface area relative to the volume of the organism.They are thin, so have a short diffusion pathway.They have a moist surface where gases can dissolve first before they diffuse in our out.They are able to maintain the diffusion gradient down which the gases can diffuse.
