Cell Membrane And Transport

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.

Most of the cell membrane is made of...

• Lipids
• Carbs
• Proteins
• Nucleic acids

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

• Lipids
• Carbs
• Proteins
• Nucleic Acids

Lipid tails are...

• Nonpolar
• Polar

Tags

NGSS.HS-PS1-2

Lipid tails are...

• Hydrophobic
• Hydrophilic

When looking at the cell membrane, where are the lipid tails located?

• Inner part of the bilayer
• Outer part of the bilayer
• At the end of the bilayer
• Goes through each end of the bilayer

How many layers is the lipid bilayer?

• 1
• 2
• 3
• 4

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

• Lipids
• Carbs
• Proteins
• Nucleic Acids

A cell will __________________ in a hypotonic solution.

• swell and perhaps burst (lyse)
• shrink
• the size of the cell will not change
• the size of the cell will change from large to small and from small to large

Tags

NGSS.HS-LS1-3

The membrane of a cell is depicted as mosaic because it

• folds itself into a double layer when placed into polar surroundings
• does not hold the characteristics of a solid substance
• is composed of many different kinds of macromolecules
• moves proteins laterally through the entire length of a cell