A membrane is fouled with a layer of bacteria (a bioflim). The water permeability of the...

A membrane is fouled with a layer of bacteria (a bioflim). The water permeability of the biofilm is 2 x 10^-12 mol m s^-1 m^-2 atm^-1 and is 21 μm thick. The membrane is 52 μm thick with a water permeability of 1 x 10^-12 mol m s^-1 m^-2 atm^-1. Neglect the convective mass transfer resistance as they are very small.

The partial pressure of water of one side is 200 kPa and 101 kPa on the other.

Calculate the total mass flux of water through the combined membrane and biofilm in mol m^-2 s^-1 (3 SF) eg 1.67E-8.

Conversion 1 atm = 1.01325 x 10⁵ Pa

Useful equations:

and

Expert Solution

genius_generous answered 1 year ago

Name a membrane component that makes the membrane more permeable and one that reduces the permeability....

Name a membrane component that makes the membrane more permeable and one that reduces the permeability. Explain why each component affects the permeability it does.

Which of the following factors does not affect membrane permeability?

Which of the following factors does not affect membrane permeability? Temperature The saturation of hydrocarbon tails in membrane phospholipids The amount of cholesterol in the membrane The polarity of membrane phospholipids

Discuss the factors affecting the permeability of the plasma membrane. Cite references

The resting membrane of a cell is mostly due to: A. high permeability of the cell...

The resting membrane of a cell is mostly due to: A. high permeability of the cell membrane to K+ B. high permeability of the cell membrane to Cl- C. high permeability of the cell membrane to Na+ D. the activity of the electrogenic pump

Discuss resting membrane potential, membrane permeability, electrochemical gradients, Nernst equation, Goldman-Hodgkin-Katz equation.

1a. Describe how the permeability of the axon membrane to Na 1 and K 1 is...

1a. Describe how the permeability of the axon membrane to Na 1 and K 1 is regulated and how changes in permeability to these ions affect the membrane potential. 1b. Describe how gating of Na 1 and K 1 in the axon membrane results in the production of an action potential. 1c. Explain the all-or-none law of action potentials, and describe the effect of increased stimulus strength on action potential production. How do the refractory periods affect the frequency of...

Renal physiology (select the INCORRECT statement) Vasopressin regulates the permeability of the apical membrane of collecting...

Renal physiology (select the INCORRECT statement) Vasopressin regulates the permeability of the apical membrane of collecting duct cells by increasing the exocytosis of aquaportin-2 vesicles. Vasopressin is synthesized by hypothalamic neurons with long axons that extend into the anterior pituitary. The vasopressin receptor on renal collecting duct cells is a G protein-coupled receptor located on the basolateral membrane. A person with central diabetes insipidus could be therapeutically managed with injections of vasopressin.

Released in response to monitored by juxtaglomerular apparatus ___: Increases permeability to water...

Released in response to ________________ ________________ monitored by juxtaglomerular apparatus ______________ _________________: Increases permeability to water of collecting ducts, resulting in more water moving from filtrate to blood ________________ _________________ _________________: Released from the right atrium of the heart in response to increased blood volume and pressure Kidneys have two homeostatic functions unrelated to the urinary system Release ____________________: Hormone that stimulates the production of red blood cells in red bone marrow Transform _________________ into its active form ______________ ________________...

Compared to glycerol (shown), O2 has a higher rate of passive permeability through a cell membrane....

Compared to glycerol (shown), O2 has a higher rate of passive permeability through a cell membrane. Which of these correctly explains why? Choose all that apply. a. The most energetically challenging part of traversing a membrane is passing through the hydrophobic interior. Hydrophobic molecules can more easily do this and so can pass through membranes more easily. b. The most energetically challenging part of traversing a membrane is passing through the polar head groups. Polar molecules can more easily do...

These specialized cells respond to hormones to regulate their permeability to water and solutes and monitor...

These specialized cells respond to hormones to regulate their permeability to water and solutes and monitor the filtrate prior to its entry into the collecting duct. principal cells of the DCT simple cuboidal cells of the PCT podocytes of the filtration membrane transitional epithelial cells of the urethra

Question