Cell Membrane Permeability

Another term for equilibrium is...

• Equality
• Corresondant
• Homeostasis
• Balance

Tags

NGSS.HS-LS1-3

What is another term for "selectively permeable"?

• Porous
• Semifluid
• Permanent
• Semipermeable

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.

The main macromolecule that builds the cell membrane are:

• Lipids
• Carbohydrates
• Proteins
• Nucleic acids

How many layers is the lipid bilayer?

• 1
• 2
• 3
• 4

What does the "fluid mosaic model" mean about the cell membrane?

• It can dissolve into fluid.
• The cell is mostly made of mosaic molecules.
• It looks like a flexible pattern.
• Somebody else should name these things.

A can of air freshener is sprayed in the opposite side of the room.  Ten minutes later you start to smell the scent.  This is an example of 

• diffusion
• active transport
• endocytosis
• osmosis

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

A cell will _____________________ in a hypertonic solution.

• swell
• shrink
• will not change
• will explode

The movement of water across a selectively permeable membrane without the use of any energy is called

• endocytosis
• diffusion
• active transport
• osmosis