Active Transport

Energy is required for

• Passive Transport

• Active Transport

• Diffusion

• Osmosis

Passive transport is the movement of materials __________ a concentration gradient.

• with

• against

• neither

• both

Active transport is the movement of materials ___________ a concentration gradient.

• with

• against

• neither

• both

Active transport is the movement of materials from _____________ concentration to ______________ concentration.

• high, low

• low, high

• both

• neither

_________________ can be used to help move small molecules across the membrane in active transport.

• osmosis

• diffusion

• protein pumps

• exocytosis

What happens to the protein pumps in active transport?

• They get smaller

• They get bigger

• They change shape

• They change color

_____________ is the process by which a vacuole in the cell fuses with the cell membrane to release materials to the outside of the cell.

• endocytosis

• exocytosis

• pinocytosis

• phagocytosis

Which energy molecule is most commonly used by the body to allow protein pumps to work?

• ATP

• B6

• Na+

• K+

The sodium-potassium pump moves K+ ___________ the cell.

• inside

• outside

• no where

A food vacuole is formed by

• exocytosis

• endocytosis

• phagocytosis

• pinocytosis