AP Membrane Permeability & Transport

What do the brown structures represent?

• Phospholipids
• Glycoproteins
• Channel Proteins 
• Cyctoskeleton Filaments

What is the name for a molecule that has a polar head region and a hydrophobic tail region?

• Bihydrophicity
• Amphipathic
• Hydrophilic
• Dipolarity

What is the movement of molecules from an area of high concentration to low concentration? 

• Mitosis
• Diffusion
• Passive Transport
• Active Transport

Which of the following types of transport requires energy?

• Passive
• Active

Which of the following factors does NOT determine the speed of diffusion? 

• Temperature
• Diameter
• pH
• Concentration Gradients 

Osmosis is the movement of __________ across a membrane? 

• Glucose
• Water
• N⁺ ions
• Hydrogen Peroxide

The cell that is pictured here in is what type of solution?

• Hypertonic
• Isotonic
• Hypotonic
• None of these

_________ proteins are integral membrane proteins that form channels across the membrane through which some substances can pass. 

• Anchored
• Gated
• Embeded
• Channel