Transport Mechanisms in Cells

Osmosis is a form active transport.

• True

• False

In co-transport the other molecule is moved in the same direction as Na+ (outside the cell).

• True

• False

O2 is transported by facilitated diffusion.

• True

• False

Active transport occurs against concentration gradient (from higher to lower concentrations).

• True

• False

Exocytosis is active transport by which large particles enter the cell when diffusion and active transport fail to occur.

• True

• False

Describe movement of water through semipermeable membrane, which of the following mechanisms describe this transport?

• Active transport

• Facilitated diffusion

• Exocytosis

• Osmosis

Which of the following mechanisms is responsible for transporting Gases like oxygen across the cell membrane?

• Simple diffusion

• Facilitated diffusion

• Osmosis

• Endocytosis

Describe type of active transport, which of the following mechanisms describe this transport?

• Endocytosis

• Facilitated diffusion

• Osmosis

• Exocytosis