PSIO SI S2

what is tonicity

• Volume change of a cell in response to environemnt

• Volume change of a cell in response to osmosis

• direct link between ICF and ECF

• Movement of large molecules

All of the following are osmotic pathways except....

• Aquaporin channels

• Between phospholipid bilayer

• through ion channels

• through blood vessels

All of the following are characteristics of a carrier protein EXCEPT....

• Direct link between ECF and ICF

• Moves water

• Moves small molecules

• Never a direct link between ECF and ICF

What type of transport is needed for very large molecules?

• Passive diffusion

• Facilitated diffusion

• Osmosis

• Vesicular transport

Which of the following requires a conformational change

• Channel proteins

• Molecules

• Carrier proteins

• Active diffusion

Which of the following elements would cause further protein folding in a tertiary structure

• K+

• H2O

• Ca2+

• Na+

How many Na+ are released by the Na+/K+ pump?

How many K+ are released from the Na/K+ pump

How many ATP are hydrolyzed by the Na/K+

• 1

• 2

• 3

• 4

What type of transport is the sodium potassium pump representative of?

• Facilitated diffusion

• Secondary active transport

• Primary active transport

• Active transport