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

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

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter4: Energy And Metabolism

Section: Chapter Questions

Problem 8SQ

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Eukaryotic membrane fluidity can be increased by which of the following mechanisms? increasing the number of fatty acids attached to glycerol in membrane lipids decreasing the number of branched chain fatty acids of membrane lipids decreasing the number of carbons in the fatty acids of membrane lipids decreasing the number of membraned organelles in the eukaryotic cell increasing the degree of saturation in the fatty acids of membrane lipids
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 increased by which of the following mechanisms? cell bio 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? 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
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
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 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
Why do glycolipids exist almost exclusively on the exterior side, but not on the cytoplasmic side of the cell membrane? Flippase move the glycolipids to this side of the membrane. The inner layer of the membrane is not thick enough to accommodate carbohydrates. Carbohydrates are only added to lipids on the lumen side of the ER and Golgi membranes. Carbohydrates are removed from the cytoplasmic side by glycosylase enzymes. Next
Membrane synthesis in the cell involves the movement of specific of phospholipids to the cytosolic face or non-cytosolic face (also known as extracellular face) of the membrane to achieve their mature distribution. Which enzyme non-selectively moves phospholipids between the two faces of the lipid bilayer? convertases flippases phospholipases scramblases floppases
Plasma membrane phospholipid asymmetry: O is maintained when vesicles are endocytosed such that the outer leaflets of both structures have an identical composition. requires the activity of scramblase. O is maintained by flippase. O relies on the spontaneous self-organization of lipid components. O is lost when vesicles are formed.
why is unsaturated fatty acid used to maintain membrane fluidity and flexibility?