Use the Stokes-Einstein equation to estimate the diffusion coefficient in m2/s and in um?/s for the following particles. Assume that the particles are immersed inwater in a test tube at body temperature (37 °C), which has a viscosity of approximately 0.0007 kg m1 s1. Assume the particles are all sphericalParticleDiameterATP1.4 nmEukaryotic ribosome25 nmSARS-COV-2100 nm

The Stoke-Einstein equation is used for calculating the diffusion coefficient of spherical…

Answered: Use the Stokes-Einstein equation to…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Similar questions

Discuss why the following affect the rate of diffusion:molecular size, temperature, solution density, and thedistance that must be traveled.
the characteristics of water insoluble substances that is most important in governing its diffusibility through a cell membrane is its?
In the experimental conditions described below, how many molecules of dextrose do you have to add to the extracellular fluid in order to make it iso-osmotic relative to the intracellular fluid? Intracellular fluid: Number of water molecules = 60 • Number of Dextrose molecules = 7 • Number of Sucrose molecules = 3 ● Extracellular fluid: • Number of water molecules = 160 • Number of dextrose molecule = ???? • Number of Sucrose molecules = 0
Classify each example as requiring either diffusion or bulk flow as a mechanism for molecular transport. Diffusion Bulk Flow
The CMC of SDS is 8.2 mM at 25 °C. Please describe the biological membrane solubilization when [SDS] is below or above 8.2 mM in the solution.
The beaker is divided into two compartments (C and D) that has equal volumes of solution separated by an artificial membrane that has a pore size of 23 Å (Angstrom). Explain the movement of solute after eight hours if comparment C has 17 % sucrose while the compartment D has 2 % sucrose (diameter of sucrose molecule = 9 Å (Angstrom))
An artificial cell consisting of an aqueous solution enclosed in a selectively permeable membrane (but with no cell wall) is immersed in a beaker containing an aqueous solution. The outside environment concentration consists of 0.01 M glucose and the inside of the cell has a concentration of 5.0 M glucose. The plasma membrane is permeable to water and monosaccharides, but impermeable to the disaccharides. Complete the following for the image below: Is the glucose going down or against its concentration gradient? Is the movement of the solute in the cell going out of the cell? Down...Yes Down...No Against...Yes Against...No
The classic demonstration that cell plasma membranes are composed ofbilayers depends on the following kinds of data:• The membrane lipids from 4.74 x 109erythrocytes will form a monolayer of area 0.89 m2when spread on a water surface.• The surface of one erythrocyte is approximately 100 μm2in area. Show that these data can be accounted for only if the erythrocyte membrane is a bilayer.
Answer the following questions based on the graph: a) Which of the two molecules that are the same size will passively diffuse across a cell membrane quicker? Why? [2 A] b) Which type of transport method would glucose use? Why? [2 A] Figure 1: Relative Sizes of Molecules Diffusing Across a Cell Membrane Substance Tested water oxygen glycerol glucose alcohol carbon dioxide 0 50 100 150 200 Relative Size of Molecules I
Within cells, small organelles containing newly synthesized proteins are transported along microtubules by tiny molecular motors called kinesins. What force does a kinesin molecule need to deliver in order to accelerate an organelle with mass 0.0100 pg (10−17 kg) from 0 to 5.80 μm/s within a time of 10.0 μs
A cell with a K+1 concentration of 0.3 eq/L is placed into a solution with a K+1 concentration of 0.2 eq/L. It is assumed that the K+1 can pass through the cell membrane (the K+1 transport protein is open). Answer the following true or false questions. 1. K+1 will diffuse through the membrane down its concentration gradient due to Kinetic Theory 2. Movement of a solute through the membrane is called dialysis 3. K+1 will move out of the cell
How is the rate of diffusion affected by an increasedconcentration gradient? By increased temperature of asolution? By increased viscosity of the solvent?

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