Which of the following lipid components of the eukaryotic plasma membrane would be associated with the highest membrane fluidity? a triglyceride with unbranched, saturated, short-chain fatty acids a monoglyceride with unbranched, saturated, short-chain fatty acids a triglyceride with unbranched, saturated, long-chain fatty acids a monoglyceride with branched, unsaturated, short-chain fatty acids a diglyceride with unbranched, saturated, long-chain fatty acids

Which of the following lipid components of the eukaryotic plasma membrane would be associated with the highest membrane fluidity? a triglyceride with unbranched, saturated, short-chain fatty acids a monoglyceride with unbranched, saturated, short-chain fatty acids a triglyceride with unbranched, saturated, long-chain fatty acids a monoglyceride with branched, unsaturated, short-chain fatty acids a diglyceride with unbranched, saturated, long-chain fatty acids

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter3: Cell Structure And Function

Section: Chapter Questions

Problem 11RQ: The tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a....

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Which of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid, would be the most likely to increase that membrane’s fluidity? linolenic acid, with 18 carbons and three carbon-to-carbon double bonds linoleic acid, with 18 carbons and two carbon-to-carbon double bonds oleic acid, with 18 carbons and one carbon-to-carbon double bond stearic acid, with 18 carbons and no carbon-to-carbon double bonds all of the above molecules are unsaturated, and equally likely to increase membrane fluidity
Eukaryotic membrane fluidity can be decreased by which of the following mechanisms? decreasing the number of fatty acids attached to glycerol in membrane lipids increasing the number of carbons in the fatty acids of membrane lipids increasing the degree of unsaturation in the fatty acids of membrane lipids decreasing the number of membraned organelles in the eukaryotic cell increasing the number of branched-chain fatty acids of membrane lipids
Which of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid, would be the most likely to decrease that membrane’s fluidity? linolenic acid, with 18 carbons and three carbon-to-carbon double bonds linoleic acid, with 18 carbons and two carbon-to-carbon double bonds stearic acid, with 18 carbons and no carbon-to-carbon double bonds oleic acid, with 18 carbons and one carbon-to-carbon double bond all of the above molecules are saturated, and equally likely to decrease membrane fluidity
Eukaryotic membrane fluidity can be increased by which of the following mechanisms? increasing the number of carbons in the fatty acids of membrane lipids increasing the number of fatty acids attached to glycerol in membrane lipids increasing the number of straight-chain fatty acids of membrane lipids increasing the degree of unsaturation in the fatty acids of membrane lipids increasing the number of membraned organelles in the eukaryotic cell
Eukaryotic membrane fluidity can be decreased by which of the following mechanisms? increasing the degree of saturation in the fatty acids of membrane lipids decreasing the number of fatty acids attached to glycerol in membrane lipids decreasing the number of carbons in the fatty acids of membrane lipids increasing the number of branched chain fatty acids of membrane lipids increasing the number of membraned organelles in the eukaryotic cell
Which of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid, would be the most likely to increase that membrane's fluidity? arachidonic acid with 20 carbons and two carbon-to-carbon double bonds stearic acid, with 18 carbons and no carbon-to-carbon double bonds None of the above arachidonic acid with 20 carbons and three carbon-to-carbon double bonds
The plasma membrane is composed of a variety of lipid molecules. 1. Phosphatidylethanolamine 2. Phosphatidylcholine 3. Phosphatidylinositol 4. Phosphatidylserine 5. Sphingomyelin 6. Glycolipids 7. Cholesterol. Which lipids contain sugar molecules?
why is unsaturated fatty acid used to maintain membrane fluidity and flexibility?
You are studying the effects of temperature and lipid composition on membrane fluidity using artificial membranes containing only one or a few kinds of lipids and no proteins. Assume that you and your lab partner have made the following artificial membranes: Membrane 1: Made entirely of phosphatidylethanolamine. Each of the two chains of the fatty acids is 18 carbon in length and both are completely saturated. Membrane 2: Made entirely of phosphatidylethanolamine with 14-carbon fatty acid chains. only one fatty acid tail contains a double bond, the other one is completely saturated. Membrane 3: Made entirely of phosphatidylethanolamine with 14-carbon fatty acid chains. Both fatty acid tails have a single double bond. Predict the transition temperature of the above-mentioned membranes.
Please describe the hydrophobic effect and its contribution to membrane protein folding.
Which of the following statements about a typical plasma membrane is correct? The hydrophilic interior of the membrane is composed primarily of the fatty acid tails of the phospholipids. Carbohydrates on the membrane surface are important in determing the overall bilayer structure. Phospholipids are the primary component that determines which solute can cross the plasma membrane. The two sides of the plasma membrane have different lipid and protein composition. The plasma membrane is covalently linked network of phospholipids and proteins that controls the movement of solutes into and out of a cell.
State the functions and importance of each of the following cell membrane components. 1. Phospholipid 2. Sphingolipid 3. Glycoprotein 4. Glycolipid 5. Peripheral Protein 6. Integral Protein 7. Cholesterol 8. Cytoskeleton Filaments