Active transport and Organelles Flashcards
Primary Active transport
the process is directly using ATP to send solutes against the gradient.
Sodium - potassium is found in all cells
secondary Active transport
Not directly using ATP.
Neighbor is paying for the Wifi but you use it too
Antiporters
Secondary transport, carries two substances across the membrane in opposite directions
Symporters
secondary trans, carries two substances across the membrane in the same direction
Vesicle
a small spherical sac formed by bedding off from the membrane.
Endocytosis
materials enter the cell in a vesicle formed of the cell membrane
Exocytosis
vesicles fuse with the cell membrane releasing their contents
Transcytosis
a combination of endo and exo cytosis
the Forms of Endocytosis
Receptor- mediated, Phagocytosis, bulk- phase
Receptor mediated endocytosis
substances are “caught” but receptors, the receptors then sink into the cell, forming a vesicle
Phagocytosis
A cells reaches pseudopod arms out to catch a virus and drags the virus into itself where it is destroyed
Bulk- phase endocytosis
if it was raining and every drop of water that hit the cell created a vesicle.
Cytosol
intracellular fluid surrounding the organelles, the site of ATP releasing chemical reactions. building blocks to cell maintenance, structure, growth
Organelles
specialized structures within a cell
Cytoskeleton
a network of protein filaments that extends throughout the cytosol. 3 types: micro, intermediate, microtubules