cell Membranes and transport

How do large molecules, such as glucose, get into a cell?

• diffusion through the cell membrane

• diffusion through CHANNELs in the cell membrane

• active transport through CHANNELS in the cell membrane

• osmosis through the cell membrane

The function of the plasma membrane is....

• to regulate what enters and leaves the cell.
• fight bacteria and viruses that enter the cell.
• provide rigid support and protection to the cell.
• make sure each cell can move

Tags

NGSS.MS-LS1-2

What is NOT TRUE about the cell membrane

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

What does "bilayer" mean?

• one layer
• two layers
• laminated
• bilateral

Most of the cell membrane is made of...

• phosphoLipids

• Carbohydrates

• Proteins

• Nucleic acids

"Water Loving"

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Tags

NGSS.HS-ESS2-5

"Water Fearing" 

• Hydrophobic
• Hydrophilic 
• Hydroelectric 
• Hydroloric

Tags

NGSS.MS-PS1-2

___________ 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

Hydrophilic portion of cell membrane?

• A
• C
• D
• E 

Tags

NGSS.MS-LS1-2

Hydrophobic region of the cell membrane?

• E
• B
• C
• A 

Tags

NGSS.MS-LS1-2