transport mechanism Flashcards
It refers to the process of moving substances into or out of a cell through the cell membrane
transport mechanism
What are the factors that can affect membrane transport?
•Membrane Permeability
•Size and charge of solute
•Solute concentration
A disbalance in the distribution of particles of a substance.
concentration gradient
what is the 3 gradient
chemical gradients
electrical gradients
electrochemical gradients
Forms due to a difference in solute concentration on different sides of a membrane
chemical gradients
Forms due to a difference in charge on either side of a membrane.
electrical gradients
Combines the effects of electrical and chemical gradients to determine the direction that ions will flow across a membrane.
electrochemical gradients
For the organism to maintain stability or balance while adjusting that are best for its survival.
HOMEOSTASIS
2 types of transport
passive transport
active transport
involves the movement of materials through the cell membrane without the expenditure or use of energy.
passive transport
under of passive transport
Simple diffusion, Osmosis, and Facilitated diffusion
is when ions or molecules diffuse from an area of high concentration to an area of low concentration.
simple diffusion
is the diffusion of water across the cell membrane
osmosis
The movement of molecules with the aid of a transport proteins.
facilitated diffusion
3 types of solutions
hypertonic solution
hypotonic solution
isotonic solution