Which of the following accurately describes transmembrane proteins? Hydrophobic
ID: 151571 • Letter: W
Question
Which of the following accurately describes transmembrane proteins?
Hydrophobic regions of transmembrane proteins are found on the interior of the membrane.
Transmembrane proteins are included in the mosaic part of the fluid mosaic model.
Membrane-spanning regions of some transmembrane proteins include hydrophilic channels.
Extracellular regions of transmembrane proteins are typically polar.
Integral and peripheral proteins are two types of transmembrane proteins.
Transmembrane proteins on the cytoplasmic side of the membrane have polar nucleic acids.
A-B only
A-D only
A-F
Hydrophobic regions of transmembrane proteins are found on the interior of the membrane.
b.Transmembrane proteins are included in the mosaic part of the fluid mosaic model.
c.Membrane-spanning regions of some transmembrane proteins include hydrophilic channels.
d.Extracellular regions of transmembrane proteins are typically polar.
e.Integral and peripheral proteins are two types of transmembrane proteins.
f.Transmembrane proteins on the cytoplasmic side of the membrane have polar nucleic acids.
g.A-B only
h.A-D only
i.A-F
Explanation / Answer
ANSWER
OPTION h (A-D ONLY) will be the answer
EXPLINATION
Hydrophobic side chain of proteins face the interior of membrane while as hydrophylic side chain face both cytoplasmic and extracellular regions of the membrane.
Transmembrane proteins are sandwiched in the lipid bilayer in plasma membrane . these proteins are included in the mosiac pattern of biological unit membranes
Transmembrane proteins form protein channels for transport .these channels are hydrophilic and molecules that cant cross the lipid membrane passes through these channels
Transmembrane proteins span the lipid bilayer with portions exposed on both sides of the membrane have both hydrophobic and hydrophilic regions. The hydrophilic regions of the transmembrane proteins are exposed to the aqueous environment of either side of the membrane. Hydrophobic regions contain mostly the non pollar amino acids and form inside part of membrane while as hydrophillic regions contains polar aminoacids are present in both extracellular as well as intrecellular (cytoplasmic) regions of membrane
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