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 theleast rigid bilayer going to the fatty acid that will produce the most rigid bilayer.• 14:0• 12:0• 22:0• 18:0O 12:0 < 18:0 < 14:0 < 22:0O 14:0 < 12:0 < 22:0 < 18:0O 22:0 < 18:0 < 14:0 < 12:0O 12:0 < 14:0 < 18:0 < 22:0

Answered: Image /qna-images/answer/ce8237c9-a9af-4e36-b7d3-580df3f2245f.jpg

Answered: he fatty acids below can be esterified…

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter3: Biological Macromolecules

Section: Chapter Questions

Problem 2VCQ: Figure 3.23 Which categories of amino acid would you expect to find on the surface of a soluble...

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Which of the following statements differentiates structurally albumin (a globular protein) structurally with that of collagen (fibrous protein)? O Peptide bonds in collagen are rigid and fixed, while the peptide bonds in albumin can freely rotate O Collagen possess an elongated shape while albumin resemble a spherical shape The amino acids in albumin are in the L-form while the amino acids in collagen are in the D-form Albumin possess less diverse set of amino acids while collagen can contain a variety of amino acid types
Which of the following statements is/are incorrect? 1. The cell membrane is purely hydrophobic. 2. Glycerophospholipids have a phosphate derivative group that is known as the polar head group. 3. The individual glycerophospholipid molecules that aggregate become covalently linked to each other to form a lipid bilayer. 4. The interfacial region of a lipid bilayer is polar due to the polar head groups of the lipid molecules that make up the bilayer. O 1 and 3 O 1 only O 2 and 4 O 3 only O 4 only
Which of the following statements about the membrane bilayer is FALSE? ccarbohydrate moieties are found on the outer leaflet O glycerophospholipids can move from one layer to the other the composition of glycerophospholipids varies between inner and outer leaflets the outer layer is more negatively charged one side of the bilayer often has more of specific glycerophospholipid than the other layer
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 best describes collagen? Select the correct responses): It is a sinistral super helix that is formed from three sinistral helices. It is a sinistral super helix that is formed from three dextral helices. • It is primarily made up of chiral and cyclic amino acids. It is primarily made up of chiral and acyclic amino acids. It is a dextral super helix that is formed from three sinistral helices. • It is primarily made up of achiral and cyclic amino acids. ]It is primarily made up of achiral and acyclic amino acids. • It is a dextral super helix that is formed from three dextral helices.
Which of these general statements is TRUE about the lipid called phosphatidylethanolamine (or PE)? PE is NOT an aminophospholipid. 3 of these 4 responses are correct PE resides mainly in the outer leaflet of the membrane bilayer. PE is zwitterionic at normal cell pH. PE is a type of cholesterol.
Which of the following statements are acceptable and why? [Whereas all the carbohydrate in the plasma membrane faces outward on the external surface of the cell, all the carbohydrate on internal membranes faces toward the cytosol.] [Although lipid molecules are free to diffuse in the plane of the bilayer, they cannot flip-flop across the bilayer unless enzyme catalysts called phospholipid translocators are present in the membrane.]
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
Which of the following correctly describes how high levels of fatty acid structures contribute to the rigidity of the cell membrane? The cell membrane becomes more rigid as the amount of unsaturated fatty acids with a kinked structure increases. The cell membrane becomes more rigid as the amount of unsaturated fatty acids with a kinked structure increases. The cell membrane becomes more rigid as the amount of saturated fatty acids with a straight structure increases. The cell membrane becomes more rigid as the amount of saturated fatty acids with a straight structure increases. The cell membrane becomes less rigid as the amount of unsaturated fatty acids with a straight structure increases. , , The cell membrane becomes less rigid as the amount of unsaturated fatty acids with a straight structure increases. , , The cell membrane becomes less rigid as the amount of saturated fatty acids with a straight structure increases.
Which of these general statements is TRUE about the lipid called phosphatidylethanolamine (or PE)? PE is zwitterionic at normal cell pH. PE is an aminophospholipid. 3 of these 4 responses are correct PE is a type of cholesterol. PE resides mainly in the inner leaflet of the membrane bilayer.
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
A phospholipid can be used to do all the following except O Increase the fluidity with the presence of unsaturated fatty acid tails. create a bi-layer membrane using amphipathic properties. form a micelle using a single layer and a hydrophobic core. O connect to a glycerol molecule to create a triacylglyceride.

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