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
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 Gradient
What is the importance of Transport Mechanisms?
to maintain stability or balance while adjusting that are best for its survival. This processes is also called as HOMEOSTASIS.
involves the movement of materials through the cell membrane without the expenditure or use of energy.
Passive Transport
3 types of passive transport?
Simple diffusion, Osmosis, and Facilitated diffusion
high concentration to low concentration?
Passive Transport
is when ions or molecules diffuse from an area of high concentration to an area of low concentration.
Simple Diffusion
The movement of molecules with the aid of a transport proteins.
Facilitated Diffusion
is the diffusion of water across the cell membrane.
Osmosis
3 Types of Solutions
Hypertonic solution
-cell shrinks
Hypotonic solution
-cell swells
Isotonic Solution
-function cell normal size
involves the movement of materials through the cell membrane that requires the use of energy.
Active Transport