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Flashcards in lecture 1.11 Deck (10)
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1
Q

What are the three things needed for cell growth?

A

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
Q

Autotrophs=

A

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

3
Q

Heterotrophs=

A

use organic molecules as carbon sources

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

4
Q

Lithotrophs=

A

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

5
Q

Organotrophs=

A

from organic molecules as carbon sources

6
Q

Phototrophs=

A

energy source is light

7
Q

Chemotrophs=

A

from oxidation of inorganic molecules

8
Q

Heterotrophs=

A

from oxidation of organic compounds

9
Q

How many universal precursor molecules are there?

A

12

10
Q

What is the order of the “bowtie”?

A

100 C sources–Catabolism–12 precursor molecules—anabolism—needed molecules