Cell Transport-- Active Transport

What is facilitated diffusion?

• Movement of molecules with the help of transport proteins

• Movement of molecules using energy

• Movement of molecules from low to high concentration

• Movement of water only

What is the primary source of energy for active transport?

• Glucose

• Carbon dioxide

• Oxygen

• ATP

Which of the following is an example of active transport?

• The sodium-potassium pump

• Facilitated diffusion

• Simple diffusion

• Osmosis

What is endocytosis?

• The production of energy within the cell

• The process of a cell engulfing material to bring it inside

• The replication of DNA within the cell

• The process of molecules exiting a cell

How does exocytosis differ from endocytosis?

• Exocytosis synthesizes proteins, whereas endocytosis breaks them down

• Exocytosis is the process of expelling materials from the cell, whereas endocytosis is the intake of materials

• There is no difference; they are the same process

• Exocytosis involves energy production, whereas endocytosis does not