Practice Quiz: Active Transport & Its Types

TRUE or FALSE.

In the Sodium-Potassium Pump, the binding and release of sodium and potassium ions are due to conformational changes (shape change) in the protein pump.

• TRUE

• FALSE

Which of the following does not use vesicles when moving materials around the cell?

• 
• 
• 

The sodium-potassium pump moves ____________ ions out of the cell and two potassium ions into the cell.

• three sodium

• two sodium

• three potassium

• two potassium

What happens when ATP is hydrolyzed to ADP in the mechanism of sodium-potassium pumps?

• ATP provides the energy changing the protein's shape.

• The phosphate group from ATP detaches from the protein.

• ATP is produced during hydrolysis.

• ATP moves out of the cell.

Which of the following processes enables large food molecules such as fats and proteins to enter a cell?

• pinocytosis

• phagocytosis

• exocytosis

• sodium-potassium pump

Describe the correct order by which endocytosis occur.

• cell membrane folds inward > pocket detaches as vesicle > pocket forms

• pocket forms > cell membrane folds inward > pocket detaches as vesicle

• cell membrane folds inward > pocket forms > pocket detaches as vesicle

• pocket detaches as vesicle > pocket forms > cell membrane folds inward

What is the function of proteins embedded in the cell membrane?

• cell transport

• energy

• cellular respiration

Which of the following is an example of exocytosis?

• white blood cell engulfing bacteria

• nutrient absorption of intestinal cells

• release of insulin from the pancreas

• conduction of nerve impulses in the neuron

Which of the following examples works through the sodium-potassium pump?

• white blood cell engulfing a bacteria

• intestinal cells absorbing nutrients

• electrical signals conducted in the nerve cells

• insulin/glucagon release regulating blood sugar levels

Which of the following examples best describes pinocytosis?

• white blood cell engulfing a bacteria

• intestinal cells absorbing nutrients

• electrical signals conducted in the nerve cells

• insulin/glucagon release regulating blood sugar levels