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Lipid rafts are regions of membrane which have different constituent lipids, an…

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Wize University Biology Textbook > Chemistry of Life

Lipids

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Lipid rafts are regions of membrane which have different constituent lipids, and which tend to be less fluid than surrounding regions of membrane. Lipid rafts are enriched in sphingomyelin, which is similar to phospholipids, and which has a fatty acid tail. Based on what you know about lipid rafts, predict the characteristics of the sphingomyelin fatty acid tail.
More Lipids Questions:
Practice: Cholesterol
Which of the following is FALSE?
Practice: Cholesterol
Which statement is FALSE about cholesterol?
Practice: Cholesterol
Which statement is FALSE about cholesterol?
Practice: Fatty Acids
What portion of a fatty acid, CH3(CH2)nCOOH, is considered hydrophilic?
Triacylglycerol
Which statement is INCORRECT about triacylglycerols?
Cholesterol
Which statement is FALSE about cholesterol?
Practice: Cholesterol
Which statement is FALSE about cholesterol?
Cholesterol
Practice: Cholesterol
Which statement is FALSE about cholesterol?
Practice: Fatty Acids
What portion of a fatty acid, CH3(CH2)nCOOH, is considered hydrophilic?
Practice: Cholesterol
Which statement is FALSE about cholesterol?
Triglyceride
What are the contents of a triglyceride?
Which of the following go together?
Choose the false statements:
Membrane phospholipids include what features
Triacylglycerol
Which statement is INCORRECT about triacylglycerols?
Cholesterol
Which statement is FALSE about cholesterol?
Practice: Fatty Acids
Which statement about fatty acids is false?
Practice: Liposomes
Which of the following best describes a liposome?
Practice: Cholesterol
Which statement is FALSE about cholesterol?
Practice: Fatty Acids
Which statement about fatty acids is false?
A mesophile with a mutation in the promoter of the desaturase gene is grown at low temperatures. What would be the phenotype of this membrane?
Which of the following lipids is NOT a major component of cell membranes?
What is a triacylglycerol?
Which of the following is a component of a fatty acid?
On a lipid membrane, what fatty acid chains would most favor high fluidity?
Which of the following best describes a liposome?
Compared to plant fats, why are most animal fats solid at room temperature?
Which of the following lipids is rigid, planar and amphipathic?
How many linkages are required to generate a triacylglyceride from glycerol and fatty acids?
What portion of a fatty acid, CH3(CH2)nCOOH, is considered hydrophilic?
In your own words, explain how cholesterol modulates membrane fluidity.
Lipid rafts are regions of membrane which have different constituent lipids, and which tend to be less fluid than surrounding regions of membrane. Lipid rafts are enriched in sphingomyelin, which is similar to phospholipids, and which has a fatty acid tail. Based on what you know about lipid rafts, predict the characteristics of the sphingomyelin fatty acid tail.
Membrane Proteins
Determine whether the following lipids will spontaneously form a lipid bilayer or micelle (Enter bilayer or micelle as your answer)
when placed in an aqueous solution. Explain your answers.
Membrane Proteins
Phospholipids, glycolipids, and sterols are major constituents of cellular membranes. Categorize each of the following compounds as one of the three, and explain how you can tell which is which.