TtHE BUILDING BLOCKS OF LIFE Flashcards
what does nasa define life as
“self sustained chemical system capable of undergoing Darwinian evolution”
generally accepted criteria for the classification of life
ability to capture store and transmit energy
ability to reproduce
what is all life primarily formed from
carbohydrates proteins lipids and nucleic acids
what is the job of lipids
store energy, gives structures to cell membranes, functions as a chemical messenger
what is the hierarchy of life
atoms, molecule ,cell, tissue, organ, body systems, organisims, ecosystem, community, population
what process are proteins involved in
controlling the rate of chemical reactions
fighting diseases
some classes of proteins
structural, storage
storage of amino acids
what do nucleic acids help form
protein
what does the DNA code
RNA in the nucleus this then leaves and codes proteins
what are the 3 super kingdoms of life
bacteria, archae, eukaryotic
what 2 main process explain the ecosystem processss
energy flow and chemical cycling
how does energy enter the ecosystem
via sunlight and is converted to chemical energy by autotrophic organisms
where is the chemical energy then passed to
heterotrophic organsims
in the ecocystyem is a constant influx of energy required
yes
The global energy budget where does 100 percent of the earths energy come from
incoming solar energy 100 percent
