Communication within and between Neurons

The ______________ potential is electrical in nature and is "all or none"

• graded
• summative
• action
• kinetic

The ________________ potential is summative in nature.

• action
• refractory
• saltatory
• graded

Membrane potential is related to which electrical concept?

• Resistance
• Voltage
• Current
• Power

Which of the following is responsible for getting large or charged (polar) molecules across the cell membrane?

• A
• B
• C
• D

Hydrophilic portion of cell membrane?

• A
• B
• C
• E
  D

Hydrophobic region of the cell membrane?

• A
• B
• C
• D

Hydrophilic means...

• water-loving
• water-fearing
• nonpolar
• lipid soluble

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

What does "bilayer" mean?

• one layer
• two layers
• laminated
• bilateral

Phospholipid heads are...

• Hydrophobic
• Hydrophilic