Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Question
Chapter 11, Problem 24RQ
Summary Introduction
To review:
The differences between lateral movement and bilayer translocation movement of phospholipids.
Introduction:
Membrane fluidity is determined by the ease with which constituent phospholipids can change their positions. This means that the structure of phospholipids as well as the energy needed for the processes to occur will determine how viscous the membrane is.
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Students have asked these similar questions
Three proteins that facilitate the movement of phospholipidmolecules across a membrane are flippase, floppase, and_________________________.
When phospholipids are added to an aqueous environment (consisting mostly of water) the
phospholipid molecules will spontaneously assemble into a phospholipid bilayer where the layers are
held together by weak attractive forces between molecules. These structures are often seen in nature
as cell and organelle membranes.
_____________________________________________________________________________
3. Which movement is more likely within a membrane, lateral movement or transverse (ie.
flip-flop)? Why?
4. Which forces hold the phospholipid bilayer together?
Hydrophobic polypeptides that dissipate osmotic gradients by inserting themselves into a membrane to form a channel are called _____________.
Chapter 11 Solutions
Biochemistry: The Molecular Basis of Life
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Ch. 11 - Prob. 2RQCh. 11 - Prob. 3RQCh. 11 - Prob. 4RQCh. 11 - Prob. 5RQCh. 11 - Prob. 6RQCh. 11 - Prob. 7RQCh. 11 - Prob. 8RQCh. 11 - Prob. 9RQCh. 11 - Prob. 10RQCh. 11 - Prob. 11RQCh. 11 - Prob. 12RQCh. 11 - Prob. 13RQCh. 11 - Prob. 14RQCh. 11 - Prob. 15RQCh. 11 - Prob. 16RQCh. 11 - Prob. 17RQCh. 11 - Prob. 18RQCh. 11 - Prob. 19RQCh. 11 - Prob. 20RQCh. 11 - Prob. 21RQCh. 11 - Prob. 22RQCh. 11 - Prob. 23RQCh. 11 - Prob. 24RQCh. 11 - Prob. 25RQCh. 11 - Prob. 26RQCh. 11 - Prob. 27RQCh. 11 - Prob. 28RQCh. 11 - Prob. 29RQCh. 11 - Prob. 30RQCh. 11 - Prob. 31RQCh. 11 - Prob. 32RQCh. 11 - Prob. 33RQCh. 11 - Prob. 34RQCh. 11 - Prob. 35RQCh. 11 - Prob. 36RQCh. 11 - Prob. 37RQCh. 11 - Prob. 38RQCh. 11 - Prob. 39RQCh. 11 - Prob. 40RQCh. 11 - Prob. 41RQCh. 11 - Prob. 42RQCh. 11 - Prob. 43RQCh. 11 - Prob. 44FBCh. 11 - Prob. 45FBCh. 11 - Prob. 46FBCh. 11 - Prob. 47FBCh. 11 - Prob. 48FBCh. 11 - Prob. 49FBCh. 11 - Prob. 50FBCh. 11 - Prob. 51FBCh. 11 - Prob. 52FBCh. 11 - Prob. 53FBCh. 11 - Prob. 54SACh. 11 - Prob. 55SACh. 11 - Prob. 56SACh. 11 - Prob. 57SACh. 11 - Prob. 58SACh. 11 - Prob. 59TQCh. 11 - Prob. 60TQCh. 11 - Prob. 61TQCh. 11 - Prob. 62TQCh. 11 - Prob. 63TQCh. 11 - Prob. 64TQCh. 11 - Prob. 65TQCh. 11 - Prob. 66TQCh. 11 - Prob. 67TQCh. 11 - Prob. 68TQCh. 11 - Prob. 69TQCh. 11 - Prob. 70TQ
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Similar questions
- All _____________ Proteins and _________ Are Asymmetrically Oriented in the Bilayerarrow_forwardMultisubunit proteins in which some or all of the subunitsare identical are referred to as _______________________.arrow_forwardSAM is a donor of _____________ groups in the synthesis of some phospholipid molecules.arrow_forward
- I will upload them for your reference and answer the question in your own words. Do not copy and paste from google. 2. Refer to the graph(and table 2) you made for question 1a. Did the solutions have positive or negative slopes?b. Do the slopes indicate that water was moving in or out of the cell (dialysis tubing) under these circumstances?c. Does sucrose move in or out of the cell? Explain.arrow_forwardDiffusion occurs because of the ________________________ of molecules.arrow_forwardWhen a purine or pyrimidine is linked through a b-Nglycosidic link to C-1 of a pentose, the molecule is calleda _________________________.arrow_forward
- A fully folded, functional single polypeptide is in ____________________ structure.arrow_forwardTransport of a substance across membranes that requires no direct input of energy is referred to as _____________ transport.arrow_forwardquestion 1 : draw an α,α(2, 2) linkage between the two monosaccharides(two fructose ). label the glycosidic linkage. Must be Haworth question 2 : Draw glycosidic linkage between D-glucose linked to D-altrose with a β(1, 3) glycosidic linkage. label clearly the glycosidic linkage. must be Haworth.arrow_forward
- Saturated fatty acids have _____________ double bonds.arrow_forwardQuestion 4. Imagine the main chain of a protein bends back on itself so that two amino acid residues R1 and R2 come close to each other. In the table below are four possibilities for what R1 and R2 might be. In each case, decide whether a specific interaction could form between the residues. If a specific interaction could form, give the name of the interaction. R₁ cysteine tyrosine threonine arginine R₂ cysteine phenylalanine glutamine aspartate specific interaction? OO yes O yes O no no OO O yes no yes no name of specific interaction 0 П 0 0arrow_forwardQuestion 13 Classify the following polysaccharides Chitin A. Heteroploysaccharide Cellulose B. Homopolysaccharide Peptidoglycan v Glycogen Glycosaminoglycanarrow_forward
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