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larger the size, the smaller the surface area to volume ratio, hence the slower the rate of diffusion into the agar jelly :)
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∙ 10y ago
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How do diffusion and osmosis limit the size of a cell?
becauuse it does
What influences diffusion?
Diffusion is a type of passive transport. The factors that influence diffusion include: concentration gradient, size of molecule involved, distance the molecule has to travel, temperature, solubility of the molecule and surface area.
What are factors on which rate of diffusion depends?
Diffusion depends on where the higher and lower concentrations of solutes are (molecules move from high to low concentration), what kind of membrane (if any) the molecules are moving through, and in many cases how large and charged the molecules are.
What is a disk diffusion test?
In the disk diffusion test (also called the Kirby Bauer test), disks containing an antimicrobial agent are placed on the surface of an agar plate containing a medium that has been inoculated with the disease agent being tested, which will grow and fill the disk. The antimicrobial agent diffuses into the medium, killing some of the disease agent around where the anitmicrobial agent was innoculated, depending on how susceptible the disease agent is to the antimicrobial agent. The size of the area cleared of the disease agent shows how effective the antimicrobial agent is.
What transport mechanism do one celled colonial and simple multicellular organisms rely on?
These organisms use simple diffusion as a transport mechanism.This is possible because of the small size of the organisms. Diffusion is effective over small distances but as size increases it becomes less and less efficient.
In the diffusion of liquids through agar what characteristic of liquid determines the rate at which it will travel through the agar?
The size of the molecules.
Does diffusion effect cell size?
Yes
Effect of molecular size on diffusion?
Molecular Diffusion Of Light
How does osmosis and diffusion limit the size of a cell?
diffusion and osmosis limit the size of a cell by how fast is can move
How does size play a role in diffusion?
no answer.
Why It is advantageous for cells to be small?
It is advantageous for cells to be small because they are able to get more nourishment. Their size makes them more efficient at diffusion.
What factors must be carefully control in the Kirby-Bauer method?
purity of culture, depth of seeded layer, incubation temp, agar temp, size of inoculum, distribution of inoculum, incubation period, diffusion rate of antibiotic, concentration of antibiotic on disk, growth rate of bacterium.
What factors must be carefully controlled in the kirby-Bauer method?
purity of culture, depth of seeded layer, incubation temp, agar temp, size of inoculum, distribution of inoculum, incubation period, diffusion rate of antibiotic, concentration of antibiotic on disk, growth rate of bacterium.
How do diffusion and osmosis limit the size of a cell?
becauuse it does
How diffusion and osmosis limit the size of a cell?
becauuse it does
What factors most affect the rate of diffusion in a liquid or agas?
Two factors which determine the rate of diffusion of a liquid in another liquid include temperature and particle size. The higher the temperature, the faster diffusion takes place, and the smaller the particle, the faster diffusion takes place.
What is diffusion rate proportional to?
rate of diffusion depends on the concentration gradient, surface area, distance over which diffusion takes place, size and nature of the diffusing molecule.
