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What is ATP?
energy!!
Active transport
the movement of large macromolecules against their concentration gradient, from low to high concentration.
Three types of active transport
Protein regulated, endocytosis and exocytosis
Endocytosis
when molecules enter the cell using vesicles from the cell membrane
Exocytosis
when molecules exit the cell using vesicles from the golgi body
pinocytosis
cell "drinks" particles
Two types of endocytosis
pinocytosis and phagocytosis
phagocytosis
Cell "eats" particles
lysosome
organelle containing enzymes that breaks down material in phagocytosis
What do phospholipids make up?
the cell membrane
How do molecules move in active transport?
from low to high concentration
What type of molecules use active transport?
Ions and large molecules
Why is calcium needed in low amounts in the cell?
because cells use small amounts for signalling between organelles
