Cell Membrane Review

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

• diffusion
• osmosis
• facilitated diffusion
• active transport

Osmosis is the diffusion of __________.

• water
• glucose
• air
• passive transport

Describe the movement of molecules going through the proteins in the illustration.

• Molecules are moving from a higher concentration to a lower concentration.

• Molecules are moving from a lower concentration to a higher concentration.

• Molecules are moving from a higher concentration to a lower concentration and then from a lower to higher concentration.

• Molecules are moving from a lower concentration to a higher concentration and then from a higher concentration to a lower concentration.

The cellular process in which materials are moved across a membrane from an area of low concentration to an area of high concentration is called

• Osmosis
• Simple Diffusion
• Active Transport
• Passive Transport 

The picture is an example of...

• active transport
• passive transport
• diffusion
• osmosis

What is a bad description of the cell membrane?

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

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

This picture represents which type of cellular transport?

• passive transport
• endocytosis
• exocytosis
• osmosis