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Q: Why is surface area important for diffusion?
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How are living organisms adapted to increase posibility of diffusion?

they have a large surface area and are important


How does surface area affect diffusion rate?

Surface area directly affects the rate of diffusion by providing more area for molecules to interact; a larger surface area leads to faster diffusion rates because there are more opportunities for molecules to move across the membrane. With a greater surface area, more molecules can pass through the cell membrane at the same time, increasing the overall rate of diffusion.


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 does surface area to volume ratio of a cell affect rate of diffusion?

The surface area to volume ratio of a cell affects the rate of diffusion in that the higher the ratio, the faster the rate of diffusion. This is a directly proportional relationship.


What influences the rate of diffusion?

The rate of diffusion is influenced by the concentration gradient, temperature, molecular size, and the medium through which the particles are diffusing. A steeper concentration gradient, higher temperature, smaller molecular size, and a less dense medium all tend to increase the rate of diffusion.


Why small particle has more surface area than larger particle?

That depends upon the shape of the particles. * If they are spherical, the surface area is 4*pi*r^2, where r is the radius of the particle. * If they are cuboidal, the surface area is b*w*h, where b, w, h are the lengths of the sides


What 3 things limit cell size?

Cell size is limited by the surface area-to-volume ratio, as cells need to efficiently exchange materials with their environment. Another limiting factor is the ability of the cell to transport molecules and organelles throughout its interior. Finally, cellular activities like metabolism and gene expression require specific molecular concentrations, which may be compromised if the cell becomes too large.


What is the relationship between surface area to volume ratio and the rate of diffusion?

The higher the ratio, the faster the rate of diffusion


How does surface area work?

It would help if the question was less obscure. What do you mean by "work"? How the surface area affects chemical processes (for example the surface area of catalysts), or diffusion, or surface areas and friction?


What is diffusion in the villi?

Same as anywhere else on the cell. The function of the villi is to increase the surface area, and thus the rate of diffusion.


A larger surface area makes diffusion happen more quickly?

Yes, a larger surface area allows for more contact between the molecules involved in diffusion and the surrounding environment, facilitating a faster exchange of molecules. This is because more molecules can be in contact with the surface at the same time, increasing the rate of diffusion.


How can capillaries allow gas exchange?

Capillaries have thin walls that allow for diffusion of gases such as oxygen and carbon dioxide between the blood in the capillary and surrounding tissues. The close proximity of capillaries to cells ensures efficient exchange of gases due to a short diffusion distance. Additionally, the high surface area of capillaries facilitates a large area for gas exchange to occur.