Cell Membrane & Cell Transport Review

Which of the following is NOT a component of the cell membrane?

• Phospholipids

• Proteins

• DNA

A hydrophilic molecule will _____________ water.

• Fear

• Love

A hydrophobic molecule will ______________ water

• Fear

• Love

The phosphate head in a phospholipid is considered....

• Hydrophobic

• Hydrophilic

A ________________________ occurs when phospolipids are arranged in a double layer.

• Lipid bilayer

• Transport protein

• Active Transport

• Diffusion

What is the movement of molecules across a cell membrane that does NOT require energy?

• Active transport

• Passive Transport

• Intracellular transport

Fatty acid tails in a phospholipid are....

• Hydrophobic

• Hydrophilic

Some molecules need to pass through a protein in order cross the cell membrane. This is an example of...

• Active Transport

• Endocytosis

• Osmosis

• Facilitated diffusion

What is it called when the concentration of a substance is equal throughout a space?

• Diffusion

• Equilibrium

• Concentration gradient

• Isotonic

Diffusion is used to describe movement of molecules from an area of...

• High to low concentration

• Low to high concentration