1.5 origin of cells Flashcards
where did the first cell come from?
from non-living material (abiogenesis theory)
why isn’t there spontaneous generation of cells today?
the conditions of our planet today do not support abiogenesis.
what is the Miller-urey experiment?
they took basic chemicals found on the earth prior to life
recreated the environmental conditions
able to synthesize organic molecules
form chemically unique components
what was pastures experiment?
heating liquids to prevent bacteria growth
started with a broth solution and boiled it to kill the microorganisms. when the solution was sealed there was no growth when it was exposed there was growth.
what is the endosymbiotic theory?
how the complexity of cells was achieved through Symbians
symbians= when a cell lives in another cell and both benefit