The plasma membrane of E. coli is approximately 75% protein and 25% phospholipid by weight. It is known that the average membrane protein molecular weight is 50,000 Da and an average membrane phospholipid molecular weight is 750 Da. Calculate the number of membrane phospholipid molecules present per molecule of membrane protein. number of membrane phospholipid molecules: molecules Select the additional information that one would need to calculate the fraction of membrane surface covered by phospholipids. ) the average densities of a 50,000 Da protein and a 750 Da phospholipid ) the number of moles of protein and phospholipid in the membrane the surface area of the E. coli cell the average cross-sectional areas of a 50,000 Da protein and a 750 Da phospholipid in a bilayer

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
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The plasma membrane of E. coli is approximately 75% protein and 25% phospholipid by weight. It is known that the average
membrane protein molecular weight is 50,000 Da and an average membrane phospholipid molecular weight is 750 Da.
Calculate the number of membrane phospholipid molecules present per molecule of membrane protein.
number of membrane phospholipid molecules:
molecules
Select the additional information that one would need to calculate the fraction of membrane surface covered
by phospholipids.
the average densities of a 50,000 Da protein and a 750 Da phospholipid
the number of moles of protein and phospholipid in the membrane
the surface area of the E. coli cell
the average cross-sectional areas of a 50,000 Da protein and a 750 Da phospholipid in a bilayer
Transcribed Image Text:The plasma membrane of E. coli is approximately 75% protein and 25% phospholipid by weight. It is known that the average membrane protein molecular weight is 50,000 Da and an average membrane phospholipid molecular weight is 750 Da. Calculate the number of membrane phospholipid molecules present per molecule of membrane protein. number of membrane phospholipid molecules: molecules Select the additional information that one would need to calculate the fraction of membrane surface covered by phospholipids. the average densities of a 50,000 Da protein and a 750 Da phospholipid the number of moles of protein and phospholipid in the membrane the surface area of the E. coli cell the average cross-sectional areas of a 50,000 Da protein and a 750 Da phospholipid in a bilayer
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