Na+/K+ Pump Function and Mechanism

The video explains the sodium-potassium pump, a crucial enzyme in cell membranes that transports sodium and potassium ions against their concentration gradients using ATP. It details the pump's structure, function, and mechanism, emphasizing the role of ATP hydrolysis in driving ion transport. The video also credits McGraw Hill for its production.

What types of cells have a high concentration of sodium-potassium pumps?

• Skin cells

• Red blood cells

• Neurons and muscle cells

• Liver cells

What is the primary function of the sodium-potassium pump?

• To transport glucose into the cell

• To pump sodium out of the cell and potassium into the cell

• To synthesize proteins

• To generate ATP

What type of transport is the sodium-potassium pump involved in?

• Secondary active transport

• Passive transport

• Facilitated diffusion

• Primary active transport

How many sodium ions are moved out of the cell during one cycle of the pump?

• One

• Three

• Two

• Four

What happens to ATP during the sodium-potassium pump cycle?

• It remains unchanged

• It is converted to ADP and a phosphate group

• It is stored for later use

• It is synthesized

What triggers the change in conformation of the sodium-potassium pump?

• Presence of oxygen

• Hydrolysis of ATP

• Binding of glucose

• Increase in temperature

Why is ATP hydrolysis crucial for the sodium-potassium pump's function?

• It provides the energy needed for ion transport against the concentration gradient

• It helps in the synthesis of proteins

• It maintains the cell's shape

• It regulates the cell's temperature