Flashcards in lecture 1.11 Deck (10):
What are the three things needed for cell growth?
Chemical components: Carbon (also O, H, N, P and other nutrients)
Reducing power (electrons): mostly in the form of hydrides (H-)
Energy: ATP, proton motive force
carbon from inorganic molecules, mainly CO2, but some can get it from CO or CH4.
use organic molecules as carbon sources
can use a variety of carbon sources, mono- and polysaccharides, organic acids, amino acids, nucleotides, etc.
Get electrons from inorganic electron donors: H2O, H2, H2S.
from organic molecules as carbon sources
energy source is light
from oxidation of inorganic molecules
from oxidation of organic compounds
How many universal precursor molecules are there?