Phospholipid Bilayer Structure

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What is the term used to describe the polar head of a phospholipid?

Fluid mosaic

Hydrophobic

Water-loving (correct)

Nonpolar

How are the nonpolar tails of phospholipids described in terms of water?

Water-loving

Hydrophobic (correct)

Fluid mosaic

Polar

What term is used to describe the organization of phospholipids in a cell membrane?

Hydrophilic arrangement

Cholesterol structure

Polar composition

Fluid mosaic model (correct)

Which feature of the cell membrane provides flexibility according to the text?

Nonpolar tails Signup and view all the answers

What role does cholesterol play in the cell membrane?

Promotes fluidity Signup and view all the answers

In what shape is the entire phospholipid bilayer that surrounds a cell?

Sphere Signup and view all the answers

What is the function of cholesterol in the cell membrane?

Preventing phospholipids from becoming too packed in low temperatures Signup and view all the answers

Where are peripheral proteins typically located?

On the exterior areas of the membrane Signup and view all the answers

What role do integral proteins play in transporting materials in cells?

Facilitating various transport methods Signup and view all the answers

How are glycoproteins and glycolipids involved in self/non-self recognition?

Identifying the cell as belonging to the organism Signup and view all the answers

What is the role of the glycoprotein CD4 in immune cells?

Assisting immune cells to interact and activate Signup and view all the answers

Why are glucose molecules unable to pass through the cell membrane easily?

They are too large and polar Signup and view all the answers

Phospholipid Bilayer Structure

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Questions and Answers

What is the term used to describe the polar head of a phospholipid?

How are the nonpolar tails of phospholipids described in terms of water?

What term is used to describe the organization of phospholipids in a cell membrane?

Which feature of the cell membrane provides flexibility according to the text?

What role does cholesterol play in the cell membrane?

In what shape is the entire phospholipid bilayer that surrounds a cell?

What is the function of cholesterol in the cell membrane?

Where are peripheral proteins typically located?

What role do integral proteins play in transporting materials in cells?

How are glycoproteins and glycolipids involved in self/non-self recognition?

What is the role of the glycoprotein CD4 in immune cells?

Why are glucose molecules unable to pass through the cell membrane easily?

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