3. Some proteins are membrane bound and have segments (called transmembrane domains) that pass throughthe membrane and anchor the protein to the lipid bilayer. Predict which amino acid residues are likely found inthe transmembrane domains of proteins, and which amino acid residues are likely found just at the membranesurface on the interior and exterior of the cell. Succinctly explain your rationale.

There are different proteins associated with lipid bilayer and they perform different functions.…

Answered: 3. Some proteins are membrane bound and…

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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Similar questions

1. Theoretically, a protein could assume a virtually infinite number of configurations and conformations. Suggestseveral features of proteins that drastically limit the actual number. 2. What are the greatest structural features that differentiate sphingolipids from phosphoglycerides? 3. High levels of glucose-6-phosphate inhibit glycolysis. If the concentration of glucose-6-phosphate decreases,activity is restored. Why?
Explain why each option is incorrect and also explain the correct option
7
Integral membrane proteins... Choose all that could apply are bound to the membrane by only interacting with the phospholipid's polar head O contain many amino acids with hydrophobic residues O contain alpha-helical membrane spanning domains O would not be digested by trypsin in a permeabilized cell O interact with the phospholipid core of the phospholipid bilayer
For biological membranes, which of the following statement is NOT true? A. The phospholipid bilayer is a fluid matrix. B. Protein can be anchored to the membrane by covalently linked lipid chains. C. Proteins can move laterally across the membrane. D. For organisms living in cold temperature, their cell membranes contain more triacylglycerols. E. Transverse motion of lipid molecules can occur occasionally. Enzyme lowers when... A. The energy difference between the substrate and the transition state B. The energy difference between the product and the transition state C. Both A and B D. Neither A nor B
1.
4. A protein solution is prepared by dissolving 350 µg of protein in 200 µL of water. A 150 μL sample of this solution is diluted to a total volume of 4.5 mL. How many mg of protein will be in a 2 mL sample of the diluted protein solution? Space to show your workings:
. The structure of certain porin proteins is organized into an interesting beta-barrel, in which each beta strand spans the lipid bilayer at an ~45° angle. Using this information, together with general dimensions of the lipid bilayer, what would be the approximate number of amino acids found within a beta strand in an aquaporin protein complex? Explain how you arrive at your answer.
6. As a demonstration, an artificial cell consisting of an aqueous solution enclosed in a semi permeable membrane is placed into a beaker containing a different solution. The membrane is permeable to water and to monosaccharide's glucose and fructose but completely impermeable to the disaccharide sucrose. The concentration of each cell is described in the diagram below. 0.03M Sucrose 0.02M Glucose 0.01M Sucrose 0.01M Glucose 0.01M Fructose a. Which solute(s) will exhibit a net diffusion into the cell? Explain. b. Which solute(s) will exhibit a net diffusion out of the cell? Explain. C. Which solution is hypertonic, the cell or the solution? Explain.
Which type of amino acid would be found on the outside of a portion of a protein embedded in the membrane (up close to the fatty acid tails)? Select one: O a. a special amino acid like glycine or proline O b. a polar amino acid like serine Ос. a hydrophobic amino acid like valine Od. a charged amino acid like lysine O e. any of the above, with no preference Clear my choice Next page ure.pptx MacBook Pro
Which of the following protein should coat a vesicle that contains a receptor that can recognize the proteins having the following amino acid sequence Lysine (K), Aspartic Acid (D), Glutamic acid (E), Leucine (L)? Group of answer choices COP I COP II All of the other/above
9. Although proteins rarely if ever flip flop across a membrane, distribution of membrane lipids between the membrane leaflets is not absolute except in the case of glycolipids. Why are glycosylated lipids less likely to flip-flop?

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