Diffusion and Why cells are small? Flashcards
How does the Cell membrane aid Diffusion?
When a substance is present in different concentrations on either side of the cell membrane, the particles will diffuse
Definition of Concentration.
Amount of dissolved particles, called solutes, in a solution
What is Diffusion?
The movement of particles from an area of high concentration to an area of low concentration.
How does Diffusion relate to why are Cells small?
Rate of diffusion is the fastest in the smallest cell. Thus, cells are small because the absorbance of nutrients can be ascertained efficiently.
How does the surface area of the cell correlate to Diffusion?
Cells need sufficient surface area to allow adequate transportation of nutrients in and waste out. As the volume of the cell increases so does the quantity of nutrient intake.
