1. An important aspect of transport by facilitated transporters and pumps is a. their rigidity b. their alpha-helices c. these proteins have beta-pleated sheets d. these proteins can move in and out of the membrane e. these proteins undergo conformational changes In the species Ferroplasma acidophilum, which is a kind of Archaea that lives in very acidic environments, the plasma membrane is primarily made up of a monolayer of molecules that look like this:. Use this information for the following two questions. 2. Given the picture, how is molecular makeup of the F . acidophilum membrane lipid similar to membrane lipids of animals? a. they both have long, branched carbon chains ether-bonded to glycerol b. they both have cholesterol-modified lipids c. they both have a glycerol backbone with a phospho-head group and two carbon chain covalently attached d. individual phospholipid molecules from both have a hydrophobic region and two hydrophilic regions e. all of the above 3. Given the picture, if you were studying F. acidophilum, which of the following statements would you predict NOT to hold true: a. the general structure of an intergral membrane protein in this organism are similiar to those in animals (ie, there must be a hydrophilic region, hydrophobic alpha-helix, and another hydrophilic region) b. the modifications of the membrane lipids compared to animal likely makes this membrane more resistant to harsh environments (ie, acidic, hot) c. integral membrane proteins could diffuse laterally in this organism's membane d. freeze-fracture EM studies of these cells could be used to reveal two surfaces, one with pits and one with domes, representing embedded membrane proteins e. peripheral membrane proteins could be associated with this kind of membrane.

1. 1. An important aspect of transport by facilitated transporters and pumps is a. their rigidity b. their
alpha-helices c. these proteins have beta-pleated sheets d. these proteins can move in and out of
the membrane e. these proteins undergo conformational changes In the species Ferroplasma
acidophilum, which is a kind of Archaea that lives in very acidic environments, the plasma
membrane is primarily made up of a monolayer of molecules that look like this:. Use this
information for the following two questions. 2. Given the picture, how is molecular makeup of the F
. acidophilum membrane lipid similar to membrane lipids of animals? a. they both have long,
branched carbon chains ether-bonded to glycerol b. they both have cholesterol-modified lipids c.
they both have a glycerol backbone with a phospho-head group and two carbon chain covalently
attached d. individual phospholipid molecules from both have a hydrophobic region and two
hydrophilic regions e. all of the above 3. Given the picture, if you were studying F. acidophilum,
which of the following statements would you predict NOT to hold true: a. the general structure of
an intergral membrane protein in this organism are similiar to those in animals (ie, there must be a
hydrophilic region, hydrophobic alpha-helix, and another hydrophilic region) b. the modifications of
the membrane lipids compared to animal likely makes this membrane more resistant to harsh
environments (ie, acidic, hot) c. integral membrane proteins could diffuse laterally in this
organism's membane d. freeze-fracture EM studies of these cells could be used to reveal two
surfaces, one with pits and one with domes, representing embedded membrane proteins e.
peripheral membrane proteins could be associated with this kind of membrane