Cell Transport 2

A phospholipid has 2 parts. What are they called? 

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

Tags

NGSS.MS-PS1-1

"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

Tags

NGSS.MS-LS1-2

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

• Selectively (or Semi) Permeable 
• Totally Transparent
• Liquid Licorice 
• Heavily Patrolled 

Tags

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.3

CCSS.RI.9-10.5

True or False. Proteins that are in the membrane have hydrophilic areas inside to allow for chemicals to pass through them without having to try and go through the hydrophobic phospholipid bilayer.

• True

• False

Which part of the cell membrane would a molecule pass through?

• A

• B

• C

• D

• E

A possible function of C as shown on the model above could be which of the following?

• To make the membrane less liquid

• To act as a cell surface marker

• To attract water

• To act as a protein channel

Which of the following processes includes all of the others?

• Facilitated diffusion

• Osmosis

• Passive transport

• Diffusion of a solute across a membrane