Transport Across the Membrane

Endocytosis is defined as

• the movement of large molecules from the inside of the cell to the outisde of the cell using channel proteins. 
• the movement of large molecules from the inside of the cell to the outisde of the cell membrane vesciles. 
•  the movement of large molecules from the outside of the cell to the inside of the cell using membrane vesciles.
• the movement of large molecules from the outside of the cell to the inside of the cell using channel proteins. 

Exocytosis is the movement of

• any type of substance from outside the cell to the inside of the cell. 
• very large substances from outside the cell to the inside of the cell. 
• any type of substance from inside the cell to the outside.
• very large substances from inside the cell to the outside.

Active transport _______ and is the movement of a substance from _____ to _____ concentration

• requires energy, high to low
• requires no energy, low to high
•  requires no energy, high to low
•  requires energy, low to high

Passive transport

•  always occurs slowly
•  does not require energy
• requires energy

In this image, the cell is using which type of molecular transport?

• Osmosis
• Diffusion 
• Endocytosis
• Exocytosis 

Tags

NGSS.MS-LS1-2

Large particles being encased in a vesicle and brought into the cell.

• endocytosis
• exocytosis
• passive transport
• active transport

This picture represents what type of cell transport?

• endocytosis
• exocytosis
• osmosis
• passive transport

During diffusion

• substances (things) moves from high to low concentration
• water moves when energy is used
• large or oddly shaped molecules move across a cell membrane
• water moves from high to low concentration

Osmosis is the diffusion of _____ across a selectively permeable membrane.

• food
• air
• water
• oxygen

What is the movement of particles with the concentration gradient using protein "helpers"?

• diffusion

• facilitated diffusion

• active transport

• enzymatic reactions