The inner & outer surfaces of a membrane may have different properties due to: A. different...

The inner & outer surfaces of a membrane may have different properties due to:

A. different phospholipid compositions

B. exposed domains of integral membrane proteins

C. peripheral membrane proteins.

D. A and B

E. All of the above

With full explanations for a good rating please!

Solutions

Expert Solution

Ans:-d explaination

Membrane surface have asymmetric different character on two sides

1. There are the difference in the lipid composition between the sides of a membrane. According to the fluid mosaic model a lipid bilayer composed of phospholipids and cholesterol.and integral proteis are shown peripheral proteins may be loosely attached to the surface.

Property of phospholipids determine the kinds of movement they can undergo in a bilayer. Transverse movement from side to side of the bilayer is relatively slow.

2. Membrans also show sideness with respect to protein composition

.different catalytic protein appear on the two sides of the membrane

.carbohydrate is mostly on the outer surface of the cell membranes.it is typically attached to the portion of membrane protein that sticks out

3. Erythrocyte membrane provides a good model of membrane sideness.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

A pH gradient exists between the internal and external surfaces of the inner mitochondrial membrane of...

A pH gradient exists between the internal and external surfaces of the inner mitochondrial membrane of 1.4 pH units, where the external side is more acidic. a. If the membrane potential is 0.6 V (where the internal side is negative), what is the free energy change on transporting 1 mol of protons across the membrane from outside to inside at 298 K? b. Under standard state conditions, how many protons must be transported to provide enough free energy for the...

What are the different import/export and secretion systems in plasma membrane and outer membrane. Then describe...

What are the different import/export and secretion systems in plasma membrane and outer membrane. Then describe them.

The outer and inner boundaires of prandtl stress potential functions have what restrictions

Give an example of an inner and outer class. (Java)

3. Assume an annulus of inner radius r1 and outer radius r2. The inner surface is...

3. Assume an annulus of inner radius r1 and outer radius r2. The inner surface is at T1, the outer surface at T2, T1 > T2. Assume heat transfer between the surfaces by conduction, with a variable conductivity, k = a + bT, develop an expression for the temperature in the material of the annulus.

We have postulated an RGB model for the material properties of surfaces. Give an argument for...

We have postulated an RGB model for the material properties of surfaces. Give an argument for using a subtractive color model instead.

6.5 We have postulated an RGB model for the material properties of surfaces. Give an argument...

6.5 We have postulated an RGB model for the material properties of surfaces. Give an argument for using a subtractive color model instead. 6.7 Show that if v lies in the same plane as l, n, and r, then the halfway angle satisfies 2ψ = φ. What relationship is there between the angles if v is not coplanar with the other vectors?

Cell Membranes and Dielectrics Many cells in the body have a cell membrane whose inner and...

Cell Membranes and Dielectrics Many cells in the body have a cell membrane whose inner and outer surfaces carry opposite charges, just like the plates of a parallel-plate capacitor. Suppose a typical cell membrane has a thickness of 8.5×10−9 m , and its inner and outer surfaces carry charge densities of -6.3×10−4 C/m2 and +6.3×10−4 C/m2 , respectively. In addition, assume that the material in the cell membrane has a dielectric constant of 5.5. Calculate the potential difference between the...

Cell Membranes and Dielectrics Many cells in the body have a cell membrane whose inner and...

Cell Membranes and Dielectrics Many cells in the body have a cell membrane whose inner and outer surfaces carry opposite charges, just like the plates of a parallel-plate capacitor. Suppose a typical cell membrane has a thickness of 6.1×10^−9 m, and its inner and outer surfaces carry charge densities of −7.7×10−4 C/m^2 and +7.7×10^−4 C/m^2, respectively. In addition, assume that the material in the cell membrane has a dielectric constant of 3.1 (a) Find the direction of the electric field...

How are the chemical properties of storage lipids and membrane lipids different? How does this relate...

How are the chemical properties of storage lipids and membrane lipids different? How does this relate to their functional properties? (i.e., why wouldn’t triacylglycerols make good membranes?)

Subjects