Biology OST Review #2

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.

Tags

NGSS.MS-LS1-2

Which of the following is NOT part of the cell membrane?

• Lipids

• Carbohydrates

• Proteins

• Nucleic Acids

Which of the following is responsible for getting complex molecules across the cell membrane?

• Lipids

• Carbohyrates

• Proteins

• Nucleic Acids

What are the carbohydrates in the cell membrane for?

• to form channels and pumps
• to help cells identify one another
• to make the membrane strong

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

___________ strengthens and stabilizes the cell membrane.

• 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

Which type of Passive Transport is being represented in this picture?

• Passive Diffusion
• Simple Diffusion
• Active Diffusion
• Facilitated Diffusion

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Tags

NGSS.HS-LS1-3

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Tags

NGSS.HS-LS1-3