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Cellular Transport - Coggle Diagram
Cellular Transport
Active Transport
It moves against the concentration gradient and requires energy
Na+/K+ ATPase Pump
All cells tend to have low Sodium and high potassium
3 Sodium molecules are pumped out of the cell
2 Potassium molecules are pumped inside the cell
Vesicle movement / Transport of large molecules
Exocytosis = out
is the process of vesicles fusing with the plasma membrane and releasing it outside of the cell
Endocytosis = in
is the process of capturing a substance or particle from outside the cell by engulfing it with the cell, and bringing it into the cell.
Pinocytosis = liquid particles transport
Receptor mediated endocytosis (used in medicine)
Phagocytosis = solid particles transport
Carrier Proteins: pumps enzymes that catalyze the breakdown of ATP.
Symport
One direction
Two substances
Antiport
Two directions
Two substances
Uniport
One direction
One substance
Passive Transport
It moves with (across) the concentration gradient and doesn't need energy
Facilitated Diffusion
Movement of solute through a cell membrane using specialized embedded transport proteins
Carrier Protein
Carrier Protein: this protein binds a substance and, in doing so, triggers a change of its own shape, moving the bound molecule from the outside of the cell to its interior
Channel Protein
Channel Proteins: are either open at all times or they are "gated", which controls the opening of the channel
Simple Diffusion
Movement of solute from an area of high concentration to low concentration through the membrane with no aid (passes directly through)
Osmosis
Movement of
Solvent
from an area of high concentration to low concentration and requires a semipermeable membrane
Tonicity and Osmosis
Hypertonic
More water inside the cell and less water outside the cell
The cell will shrivel
Isotonic
The water inside and outside of the cell is equal
The cell stays the same
Hypotonic
Less water inside the cell and more water outside the cell
The cell will swell up and burst