Cell Transport Flashcards
When sugar mixed with water, equilibrium is reached when ____
the dissolved sugar molecules are evenly distributed throughout the solution.
Facilitated diffusion requires a specific transporter for a specific molecule.
True.
The rate of diffusion is affected by _
steepness of concentration gradient, size of molecules & temperature.
The diffusion of water across a selectively permeable membrane is called _
Osmosis.
Diffusion is one of the processes whereby materials are exchanged between a cell and its environment.
True.
A cell that is in a hypotonic solution will burst because _
Water moves into the cell.
If a cell is placed in an isotonic solution, there will be no net movement of water.
True.
A red blood cell placed in a hypertonic solution will _
Shrink.
Which means of particle transport requires input of energy from the cell?
Active Transport.
Exocytosis is the release of material from the cell.
True.
what does a Hypotonic Solution do?
Causes a Cell to swell.
The cell membrane regulates and controls what kind of ________ move in and out the cell.
Molecules.
When molecules spread from an area of high to low concentration to, it is called _______.
Diffusion.
As molecules diffuse, they create a _____, which is a different in concentrations across space.
Concentration Gradient.
A membrane that would allow ANYTHING to pass through it would called ______.
Permeable.
