Ecosystems Flashcards
the process by which plants and algae convert carbon found in inorganic molecules in the atmosphere into organic matter to produce fuel for cellular respiration
carbon fixation
the process of converting nitrogen compounds into gaseous forms like nitrogen gas
denitrification
autotrophs that use chemical energy
chemoautotrophs
a community of organisms and the physical environment they live in
ecosystem
the process by which nitrogen is taken from its molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for biochemical processes
nitrogen fixation
what is the overall reaction for photosynthesis?
light + H2O + CO2 —> glucose + oxygen
a series of chemical reactions that harness energy produced by glucose and uses it to make ATP
cellular respiration
what are the 4 types of macromolecules?
carbohydrates, nucleic acids, proteins, and lipids
what is the overall reaction for cellular respiration?
glucose + O2 —> ATP + CO2 + heat
the total mass of all organisms in a system or trophic level
biomass
organisms that produce organic compounds from inorganic substrates
autotrophs
organisms that must acquire organic compounds from other organisms
heterotrophs
what are the trophic levels from order of most to least energy?
primary producers, primary consumers, secondary consumers, tertiary consumers
the framework of biomolecules
carbon
glucose + O2 —> ATP + CO2 + heat
cellular respiration overall reaction
