HU
MAN
BIO
LO
GY
100
The region along which the density of a chemical substance increases or decreases
What is concentration gradient
100
The diffusion of water across a selectively permeable membrane
What is Osmosis
100
This kind of transport uses no energy
What is passive transport
100
Process by which materials are engulfed by plasma membrane and drawn into the cell in vesicle
What is endocytosis
100
If a cell's contents are greatly hypoosmotic to the surrounding environment, the cell will probably
What is shrivel (shrink)
200
The movement of molecules from an area of high concentration to an area of low concentration.
What is Diffusion
200
True or False: Water diffuses across a membrane from the region of lower solute concentration to the region of higher solute concentration until the solute concentration is equal on both sides
What is True
200
TRUE OR FALSE: Simple diffusion uses passive transport (no energy), and facilitated diffusion uses energy to move solutes against their concentration gradients.
What is FALSE, both simple and facilitated diffusion are passive transport
200
Process by which membrane bound vesicles from inside the cell fuses with the plasma membrane and spills contents outside of cell
What is exocytosis
200
A solution in which the salt concentration is LOWER the cell than the salt concentration inside the cell is called
What is a hypotonic solution.
300
A solution in which the salt concentration is HIGHER outside the cell than the salt concentration inside the cell is called.
What is A hypertonic solution.
300
A solution in which the salt concentration is HIGHER outside the cell than the salt concentration inside the cell is called
What is a hypertonic solution
300
the tendency for molecules to spread out evenly into the available space.
What is Diffusion
300
There are three types of endocytosis, name one
What is Phagocytosis, Pinocytosis, or Receptor-mediated endocytosis
300
When will there be no net diffusion of of molecules?
At dynamic equilibrium, as many molecules cross the membrane in one direction as in the other.
400
Components involved in selective permeability, and are included in the structure of the plasma membrane.
What is Transport proteins and Phospholipid bilayer
400
When the amount of water and solute in a cell are at equilibrium.
What is isotonic
400
If the surface area for diffusion increases, the rate of diffusion will (increase/decrease).
Increase
400
Which is an example of exocytosis: 1) release of insulin by pancreatic cells. 2)release of neurotransmitters by neurons or 3) release of urine
What is 1 or 2
400
Cells occasionally need to take in or drink large amounts of water, which term best describe the process by which cells DRINK or take in packets of water?
What is pinocytosis
500
A type of endocytosis. In which a cell engulfs a particle in a vacuole. Aka 'cellular eating'
What is Pagocytosis
500
This kind of transport across the cell membrane requires a transport protein (called a pump) and uses energy to move solutes against their concentration gradients
What is Active transport
500
If the temperature decreases, the rate of diffusion will
decrease
500
A plant cell is placed in a HYPERTONIC solution, what will most likely happen to the cell?
water moves out of the cell causing it to shrink.
500
inhibits the passage of water soluble substances through it
What is A lipid bilayer