Topic 4.1 Structure of membrane (AS Biology)

Hydrophilic means

• water repelling

• water attracting

• no water

• none of the above

Hydrophobic refers to

• water repelling

• water attraction

• none of the above

The sandwich model, is a phospholipid bilayer between two layers of ______________was suggested by ____________________ scientists

• proteins, Gorter and Grendel

• lipids, Gorter and Grendel

• proteins, Singer and Nicolson

• proteins, Daveson and Danelli

The fluid mosaic model suggests that ___________ are dispersed individually inserted into the phospholipid bilayer was suggested by scientists

• proteins, Gorter and Grendel

• lipids, Gorter and Grendel

• proteins, Singer and Nicolson

• proteins, Daveson and Danelli

The steroid cholesterol that is wedged between phospholipid molecules can be thought of as a ______________buffer

• temperature

• protein

• movement

The cell membrane is selectively permeable, which means...

• All materials can enter and leave the cell
• Certain things can enter while others cannot
• The cell manually sorts through all materials
• Only certain cells can interact with the cell.

How many layers is the lipid bilayer?

• 1
• 2
• 3
• 4

"Water Fearing" 

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

"Water Loving"

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

What is "A"?

• Glycoprotein
• Phospholipid Bilayer
• Cholesterol
• Carbohydrate Chain