Cell Membrane

A phospholipid has two parts. What are they called?

• Hydrophilic Head, Hydrophobic Tail

• Hydrophobic Head, Hydrophilic Tail

"Water Loving"

• Hydrophobic

• Hydrophilic

• Hydroelectric

• Hydroloric

"Water Fearing" 

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Describes the arrangement of the cell membrane as bendable and made of many parts.

• The Fluid Mosaic Model

• The Major Mobility Model

• The Crazy Cell Model

• The Maze Model

___________ form the two layers of the cell membrane. 

• Carbohydrates 
• Proteins 
• Phospholipids 
• Cholesterol

Controls the passage of materials inside and outside of the cell.

• Cell membrane

• Cytoplasm

• Cell wall

• Endoplasmic reticulum

Which of the following is a function of the cell membrane?

• breaks down lipids, carbohydrates, and proteins from foods

• stores water, salt, proteins, and carbohydrates

• synthesizes proteins and other macromolecules

• regulates the movement of materials into and out of the cell

The ability to allow only certain molecules into or out of the cell.

• Selectively permeable

• Permeation

• Impermeability

• Unpermeability

Why is the cell membrane like a window screen?

• They both allow everything to pass through.

• Neither allow anything to pass through.

• They both allow certain things to pass through, while blocking the passage of others.

• They are not similar to each other at all.

Which of the following are embedded in the phospholipid bilayer and help substances pass through?

• lipids

• proteins

• cholesterol

• carbohydrates