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.

Carbohydrate Chains

• E

• F

• G

• I

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-5

Phospholipid Bilayer

• A

• B

• C

• D

Integral Protein

• A

• B

• C

• D

Tags

NGSS.HS-LS1-1

Hydrophilic part of the phospholipid

• G

• I

• E

• F

Hydrophobic part of the phospholipid

• G

• I

• E

• F

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

• high to low

• low to high

• low to low

• high to high

_____________ is the free movement of particles across the membrane with the concentration gradient

• diffusion

• facilitated diffusion

• active transport

• fusion

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions

What is this image?

• cell membrane
• proteins
• carbohydrates
• lipids