12:02 AMbartleby.com +bartlebyGHi Kumkum Soni1/20126 Å70 Å46.7 ÅAn alpha-helix transmembrane proteinhas 35 amino acid residues embeddedin a lipid bilayer membrane. What is thethickness of the biological membrane?EnglishX»5%HindiEl 415X

The repeating unit of an alpha-helix is the helix turn. Each helical turn in alpha-helix has an…

Answered: An alpha-helix transmembrane protein…

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

Section: Chapter Questions

Problem 1P

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Which of these can never cross the lipid bilayer without the help of a transporter or a channel? O CO2 O 02 O water O Na+ O all of the above can diffuse through the lipid bilayer without transporter proteins or channels
What components of the plasma membrane might this molecule interact with?
The fatty acids below can be esterified to a glycerol molecule to form glycerophospholipids that, in turn, could aggregate to form a lipid bilayer. Arrange the fatty acids starting from which fatty acid will produce the least rigid bilayer going to the fatty acid that will produce the most rigid bilayer. • 14:0 • 12:0 • 22:0 • 18:0 O 12:0 < 18:0 < 14:0 < 22:0 O 14:0 < 12:0 < 22:0 < 18:0 O 22:0 < 18:0 < 14:0 < 12:0 O 12:0 < 14:0 < 18:0 < 22:0
the structure of the plasma membrane is best described as: two layers of phospholipids stacked on top of each other, with proteins embedded in the phospholipids Oa single layer of proteins and polysachharides mixed together two layers of proteins stacked on top of each other O many sheets of peptidoglycan stacked on top of each other O one layer of triglycerides on top of a layer of proteins
Which molecule would you predict moves through a lipid bilayer most rapidly without the help of a transport protein? Group of answer choices A NH2SO2CH3 B C6H12O6 C C2H4 D CH3OH E C2H5OH
The plasma membrane has a hydrophobic interior due to the two present in each phospholipid found in the phospholipid bilayer of the cell membrane. The plasma membrane allows some molecules to cross but not all. Therefore, the plasma membrane is said to be Molecules that are nonpolar and hydrophobic will cross the membrane with ease by Does this process require energy? When molecules move across the plasma membrane by passive transport, they will move down or with the_ from an area of concentration to an area of. concentration. Polar, hydrophilic molecules and charged ions will move across the plasma membrane by the process of_ This does not require energy, but it does require a A special case of diffusion is known as which is the movement of water across the plasma membrane. If a cell is placed into a solution that is hypertonic compared to the inside of the cell, the cell would If a cell is placed into a hypotonic solution compared to the inside of the cell, the cell water. would…
What does the following schematic represent? Selectivity filter wwww mm Lipid bilayer MM Sensor Aqueous pore Channel protein O An ionic pump O An ion channel Gate An ion exchanger O A transmembrane protein
Which of these structures would you expect to find as part of the transmembrane portion of an integral membrane protein? Structure B would be part of the transmembrane domain of an integral membrane protein. Structure C would be part of the transmembrane domain of an integral membrane protein. Structure A would be part of the transmembrane domain of an integral membrane protein.
Fat soluble substance diffuse through the following regions of the selectively permeable cell membrane: O a Phospholipid Heads Ob Phospholipid Tails O c. Proteins Od A and C Oe. All of the Above
The average concentration of salt in seawater is about 3.5 percent and the average concen- tration of salt in the human cellular environment is about 0.9 percent. Drinking seawater can be fatally harmful and is highly discouraged even in the most severe cases of dehydration. Which of the following provides the most likely cause for this fact? A B с D The increase in salt concentration in the extracellular environment will increase the per- meability of the cell membrane. The increase in salt concentration in the extracellular environment will cause the move- ment of water into the cell. The increase in salt concentration in the extracellular environment will cause the move- ment of water out of the cell. The increase in salt concentration in the extracellular environment will decrease the per- meability of the cell membrane.
Answer the following question based on the structure of the molecule below. NH HO-P-o он он NH2 OH OH ÓH OH Molecule X is a analog of which is likely water and would permeate the plasma membrane. OA, nonhydrolyzeable; GTP; insoluble; readily B. nonhydrolyzeable; ATP; insoluble; readily c. nonhydrolyzeable; ATP; soluble; readily D. nonhydrolyzeable; GTP; soluble; not E. nonhydrolyzeable; GTP; soluble; readily
None of the above Which of the following is amphipathic? O Phospholipids. O Integral proteins. Peripheral proteins O Phospholipids and integral proteins zyme ity is the best at:

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An alpha-helix transmembrane protein has 35 amino acid residues embedded in a lipid bilayer membrane. What is the thickness of the biological membrane? O O 126 Å 70 Å 46.7 Å