Exploring Passive and Active Transport Mechanisms

The video tutorial by Amoeba Sisters explains passive and active transport in cells. Passive transport, including diffusion and osmosis, moves substances from high to low concentration without energy. Facilitated diffusion, a type of passive transport, requires proteins but no ATP. Active transport, on the other hand, uses ATP to move substances against their gradient, such as moving glucose from low to high concentration. Bulk transport, a form of active transport, includes endocytosis and exocytosis for moving large particles in and out of cells.

What is a key characteristic of passive transport?

• It involves the use of vesicles.

• It moves substances from low to high concentration.

• It requires ATP.

• It moves substances from high to low concentration.

Which process is an example of passive transport?

• Active transport

• Facilitated diffusion

• Exocytosis

• Endocytosis

What is required for active transport to occur?

• ATP

• A concentration gradient

• Diffusion

• Osmosis

Which type of transport involves moving substances against their gradient?

• Facilitated diffusion

• Passive transport

• Osmosis

• Active transport

What is the process called when large particles are brought into the cell?

• Exocytosis

• Endocytosis

• Diffusion

• Facilitated diffusion