Midterm Review

Passive transport...

• requires energy.

• does not require energy.

Active transport...

• requires energy.

• does not require energy.

What is it called when water molecules move from high to low concentration?

• Concentration Gradient

• Exocytosis

• Osmosis

• Sodium-Potassium Pump

Passive transport...

• moves molecules from a low to a high concentration

• moves molecules from a high to a low concentration

Active transport...

• moves molecules from a low to a high concentration

• moves molecules from a high to a low concentration

Particles are moving from high to low concentration are moving _______ the concentration gradient.

• Down (With)

• Up (Against)

This image is a representation of the major component of the cell membrane. This is a:

• Channel Protein

• Cholesterol Molecule

• Phospholipid

• Protein Pump

Lipids are...

• hydrophilic, "water-loving"

• hydrophobic, "water-fearing"

What does this image represent?

• Cell Membrane

• Cell Wall

• Exocytosis

• Endocytosis

What is the term for the purple item in the image?

• Channel Protein

• Cholesterol

• Passive Transport

• Active Transport