Cell Transport Flashcards
Passive Transport
The movement of substances through a membrane without cells energy
Active Transport
Controls the movement of substances into and out of cells
3 types of passive Transport
Diffusion
Osmosis
Facilitated diffusion
Diffusion
Movement of substances from an area of higher concentration to an area of lower concentration
Osmosis
The diffusion of water molecules only through a membrane
Facilitated Diffusion
Molecule pass through a cell membrane using special proteins
Transport proteins
Carrier protein
Channel protein
Carrier protein
Carry large molecules
Channel proteins
Atomic particles - sodium ion
Active Transport
Movement of substances through a cell membrane using cells energy
From which concentration
Lower to higher
Endocytosis
The process during which a cell takes in a substances by surrounding it with the cell membrane
Exocytosis
The prices during which a cell’s vesicles release their contents outside the cell
What will happen to a red blood cell if us places in distilled water?
Water will diffuse into the red blood cell and will burst
What type of Transport is that
Passive transport ( higher to lower)
What does semi permeable membrane
Allows certain subtances to pass through it
Distinguish between exocytosis and endocytosis
Endocytosis is the cell that takes in a substance and exocytosis uses cell vesicles to release their contents
It is better to have a ____ cell with a ____ surface area
Small cell with a large surface area
Why?
The surface area grows slower than the volume ratio
Volume
Amount of space inside the surface area
Surface area
The area of a cell membrane
Movement of nutrients , waiste material, and other substances into and out of cell is important for
Survival
Harder for materials to get __ and __
In and out
What Transport molecule works on both active and passive Transport
Carrier proteins
What does a cell use to eliminate a substand that is too large to leave the diffusion?
Exocytosis
Which structures join with the cells membrane during exocytosis
Vesicles
