Cell Membrane and Transport

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 made up of different parts.
• Somebody else should name these things.

Tags

NGSS.MS-LS1-2

What is a bad description of the cell membrane?

• Selectively permeable
• Fluid Mosaic Model
• Solid Barrier
• Lipid Bilayer

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

• Lipids
• Carbs
• Proteins
• Nucleic Acids

Tags

NGSS.MS-LS1-2

When looking at the cell membrane, where are the phosphate heads located?

• Floating between bilayer levels
• Outer part of the bilayer
• Inner part of the bilayer
• Located at different parts throughout the bilayer

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

What is B

• Phospholipid
• Protein
• Carbohydrate
• cholesterol

This picture show the molecules getting help across the membrane.  The vocabulary word that best describes this is

• diffusion
• osmosis
• facilitated diffusion
• active transport

When particles move out of a cell through facilitated diffusion, the cell ____________.

• Gains energy
• Uses energy
• Releases energy
• Does not use energy

Osmosis is the diffusion of __________.

• water
• glucose
• air
• passive transport

Which of the following have substances moving from a HIGH to LOW concentration

• osmosis

• diffusion

• active transport

• facilitated diffusion