A&P unit three human cells extra Flashcards
ENDOcytosis
theirs two forms
PHAGocyctosis
This takes large particles and engulfs it
Pinocytosis
this takes smaller particles and engulfs it
Exocytosis
this takes proteins and other particles and moves it out through vesicles
DNA
Made up of millions of nuclear tides is a polymer
polymer
made up of large molecules
DNA
thymine Adenine guanine cytosine
Rna
uracil adenine guanine cytosine
Diffusion
high to low like water
osmosis
High to Low
filtration
filters by water and solutes
active transport pump
particles are pumped from low to high uses energy
sodium-potassium pump
regulates the volume of fluid within cells provides electrical potential necessary for the nervous system and helps in heat production
what is plasma membrane made up of
phospholipids proteins cholesterol
role of plasma membrane
act as channels, proteins attach to the membrane, protect from invaders