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Phospholipid Bilayer Structure

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Questions and Answers

What is the main characteristic of phospholipids that leads to their self-assembly into lipid bilayers?

Their hydrophobic tails

Their hydrophilic heads

Their amphipathic nature (correct)

Their fatty acid chain length

What is the effect of unsaturated fatty acid tails on the membrane?

They increase the membrane's permeability

They make the membrane more rigid

They result in a more fluid membrane (correct)

They decrease the membrane's integrity

What is the approximate percentage of membrane lipids in animals that consist of cholesterol?

20%

10%

25% (correct)

30%

What is the role of cholesterol in the membrane?

It plays a crucial role in maintaining membrane integrity Signup and view all the answers

What is the characteristic of phospholipid bilayers that allows them to form the hydrophobic core of the membrane?

Their hydrophobic tails Signup and view all the answers

What is the result of the different lipid compositions in various membranes?

They all have different structures and functions Signup and view all the answers

Phospholipid Bilayer Structure

Choose a study mode

Podcast

Questions and Answers

What is the main characteristic of phospholipids that leads to their self-assembly into lipid bilayers?

What is the effect of unsaturated fatty acid tails on the membrane?

What is the approximate percentage of membrane lipids in animals that consist of cholesterol?

What is the role of cholesterol in the membrane?

What is the characteristic of phospholipid bilayers that allows them to form the hydrophobic core of the membrane?

What is the result of the different lipid compositions in various membranes?

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