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Cell Membrane Structure and Composition

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Questions and Answers

What are the three main components of cell membranes?

Protein, lipid, and water

Protein, lipid, and DNA

Protein, lipid, and ionized phosphate groups

Protein, lipid, and carbohydrate (correct)

What is the characteristic of the hydrocarbon tails of phospholipid molecules?

Hydrophobic (water hating) (correct)

Ionized

Globular

Hydrophilic (water loving)

What is the arrangement of phospholipid molecules in the plasma membrane?

A bilayer with the hydrocarbon tails facing together (correct)

A monolayer with the hydrocarbon tails exposed

A monolayer with the phosphate heads exposed

A bilayer with the hydrocarbon tails facing outward

What is the function of the proteins in the plasma membrane?

To regulate the movement of molecules across the membrane Signup and view all the answers

What is the shape of the proteins in the plasma membrane?

Globular Signup and view all the answers

What is the result of a small quantity of phospholipids coming into contact with water?

A monolayer forms with the hydrocarbon tails exposed Signup and view all the answers

Cell Membrane Structure and Composition

Choose a study mode

Podcast

Questions and Answers

What are the three main components of cell membranes?

What is the characteristic of the hydrocarbon tails of phospholipid molecules?

What is the arrangement of phospholipid molecules in the plasma membrane?

What is the function of the proteins in the plasma membrane?

What is the shape of the proteins in the plasma membrane?

What is the result of a small quantity of phospholipids coming into contact with water?

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