lecture 1.11 Flashcards Preview

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Flashcards in lecture 1.11 Deck (10):
1

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

2

Autotrophs=

carbon from inorganic molecules, mainly CO2, but some can get it from CO or CH4.

3

Heterotrophs=

use organic molecules as carbon sources
can use a variety of carbon sources, mono- and polysaccharides, organic acids, amino acids, nucleotides, etc.

4

Lithotrophs=

Get electrons from inorganic electron donors: H2O, H2, H2S.

5

Organotrophs=

from organic molecules as carbon sources

6

Phototrophs=

energy source is light

7

Chemotrophs=

from oxidation of inorganic molecules

8

Heterotrophs=

from oxidation of organic compounds

9

How many universal precursor molecules are there?

12

10

What is the order of the "bowtie"?

100 C sources--Catabolism--12 precursor molecules---anabolism---needed molecules