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TLS Online TPP Program

#Id: 5876

Atmospheric concentration (ppm)
CO2= 381
Methane= 1.75
Nitrous oxide= .315
Chlorofluorocarbons= 0.0005

#Unit 10. Ecological Principles #Ecological succession, Island biogeography and Applied ecology #Part B Pointers
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TLS Online TPP Program

#Id: 8119

#Unit 1. Molecules and their Interaction Relevant to Biology

The triterpenes are C30 terpenes and include squalene and lanosterol, two of the precursors of cholesterol
TLS Online TPP Program

#Id: 8120

#Unit 1. Molecules and their Interaction Relevant to Biology

Arachidonic acid and some eicosanoid derivatives.
TLS Online TPP Program

#Id: 8125

#Unit 1. Molecules and their Interaction Relevant to Biology

Steroids derived from cholesterol.
TLS Online TPP Program

#Id: 8126

#Unit 1. Molecules and their Interaction Relevant to Biology
TLS Online TPP Program

#Id: 8127

#Unit 1. Molecules and their Interaction Relevant to Biology

β-Carotene is the precursor of vitamin A1.
Oxidation at C-15 converts retinol to the aldehyde, retinal, and further oxidation produces retinoic acid, a hormone that regulates gene expression. 
TLS Online TPP Program

#Id: 8129

#Unit 1. Molecules and their Interaction Relevant to Biology

Some other biologically active isoprenoid compounds or derivatives.