Cell Membrane Test

The cell membrane is made of what?

• Two layers of phospholipids with proteins

• Cytoplasmic fluid

• DNA

• Ribosomes

Which model did scientists develop to describe the cell membrane?

• Phospholipid Model

• Fluid Mosaic Model

• Transport Model

Which phrase best describes the property of selective permeability?

• some molecules pass

• all ions pass

• large molecules pass

A selectively permeable membrane allows all molecules to cross.

• True

• False

What is the function (or job) of the cell membrane?

• It controls what enters and leaves the cell

• It provides energy to the cell

• It transports materials to different areas

Tags

NGSS.MS-LS1-2

The 3 basic parts of a phospholipid: (chose three answers)

• Carbohydrate

• Glycerol

• Phosphate Group

• Protein sources

• Two fatty acid chains

A solution that has the same, or an equal, concentration of solute to that cell.

• Isotonic

• Hypertonic

• Hypotonic

_____________ detects a signal molecule and carries out an action in response.

• Phospholipid

• Receptor

• Transmitter

A solution that has more concentration of a solute than a cell.

• Isotonic

• Hypertonic

• Hypotonic

The difference in the concentration of a substance from one location to another is called

• Concentration Osmosis

• Concentration Transport

• Concentration Gradient