Which of the following will decrease diffusion rate (a.k.a. rate of flux) of a particle across the plasma membrane? O Applying a polymer that makes the particle more hydrophobic. O Changing the diameter of the particle from 1uM to 10uM. O Both of these will decrease diffusion rate ONeither of these will decrease diffusion rate

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Q: Differentiate between active transport and passive (simple) diffusion. (At least 4 differences)

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Q: Which of the following will likely increase the rate of facilitated diffusion of a glucose mol-…

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Q: Time (min) 0-10 0-20 0-30 Rate of Diffusion for 1 Crystal (mm/hr) 90 45 36 Rate of Diffusion for 3…

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Q: Which of the following would lead to an increase in the rate of diffusion? O Decrease in…

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Q: Which of the following is FALSE regarding membrane transport? O A cell can add proteins into its…

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Q: Did you correctly calculate the diffusion rate? Time (min) 10 20 30 Time (min) 0-10 0-20 0-30…

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Q: Which of the following is not a factor affecting the rate at which diffusion occurs? O Temperature O…

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Q: If distilled water (no ions or salt) is added to red blood cells in the laboratory, the red blood…

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Q: Which of the following affects the permeability constant of a molecule in diffusion? the molecular…

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Q: Diffusion Spot Diameter 1 Diffusion Spot Diffusion Spot Diameter 3 Time Diameter 6 (min) Crystals…

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Q: What is the difference between primary and secondary active transport? primary active transport is a…

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Q: Diffusion requires a membrane to occur. A True B False

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Q: Which of the following factors influences the rate at which diffusion takes place? Size of…

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Q: Which of the following molecules can freely diffuse across the membrane? Glucose None of these Water…

A:

Q: Define Diffusion in your own words

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Q: In figure 4-7 why does facilitated diffusion have a maximum rate of diffusion?

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Q: Facilitated diffusion is a metabolically inexpensive process. O True O False

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.