Organelles and Cell Membrane

A phospholipid has 2 parts. What are they called? 

• Hydrophilic Head, Hydrophobic Tail 
• Hydrophobic Head, Hydrophilic Tail 

A ______________ is composed of a phosphate and glycerol head and 2 fatty acid chain tails. 

• phospholipid 
• Carbohydrate
• Cholesterol 
• Protein 

"Water Loving"

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Tags

NGSS.HS-ESS2-5

"Water Fearing" 

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

___________ allow cells to recognize each other and act like ID tags. 

• Carbohydrates 
• Proteins
• Phospholipids 
• Cholesterol

___________ have 2 functions in the cell membrane.
1.) They act like gatekeepers, only let certain things in. 
2.) Enzyme receptors embedded in the membrane.

• Carbohydrates 
• Proteins 
• Phospholipids 
• Cholesterol

___________ form the two layers of the cell membrane. 

• Carbohydrates 
• Proteins 
• Phospholipids 
• Cholesterol

It forms a boundary between the inside of the cell and the outside of the cell. 

• Cell Membrane
• Lipid Cleric Layer
• Membrane Gate
• Protein Receptors 

Something is ___________ ____________
when some molecules can cross the membrane while others cannot. 

• Semi Permeable 

• Totally Transparent

• Semi Blocked 

• Heavily Patrolled 

What is NOT TRUE about the cell membrane?

• It controls what enters and leaves the cell
• Semipermeable
• Phospholipid bilayer
• Contains digestive enzymes