Current Biodiversity (part 2) Flashcards
(52 cards)
eukaryotes
ALL multicellular organisms (not all eukarya are multicellular)
eukaryotes are unique because they have the ability to…
specialize and cooperate (specialization and cooperation)
single-celled eukaryotes are…
independent, have specialized structures w/in cell to perform all functions needed for life
multi-celled eukaryotes…
have cells that work together for an organism; all cells have specialized function
plants have __ that make them unique from animals
cell walls and chloroplasts
plants are __ bc they carry out __
autotrophic bc they are photosynthesis
vascular plants
have tissues that transport water/sap; tubes that move nutrients (conductive tissues = xylem and phloem)
nonvascular plants
don’t have tubes/tissues, move nutrients w/ difussion
there are __ (#) groups of vascular plants __ (#) groups of non-vascular plants
4, 2
seed-bearing plants
- gymnosperms
- angiosperms
gymnosperms
cone-bearing plants
angiosperms
flowering/fruit plants
spore-producing plants
- bryophytes
- pteridophytes
the majority of plants are __
seed-bearing
how does energy enter ecosystems?
photosynthesis
photosynthesis converts __ to __
solar energy –> chemical energy (glucose/sugars)
photosynthesis equation
sunlight + CO2 + H2O –> glucose + O2
where does photosynthesis take place?
chlorophyll (w/in chloroplast)
2 processes w/in photsynthesis
- light-dependent reactions (absorb light in chlorophyll –> release CO2)
- Calvin cycle (produces glucose, captures C from CO2)
importance of photosynthesis (3)
- produces O2 (for animals and O3)
- removes atmospheric carbon (CO2)
- carbon fixation = foundation of tropic levels
fungi are…
decomposers, heterotrophs
decomposers function =
return energy to ecosystem
fungi are more closely related to __ than ___
animals > plants
heterotrophs
absorbs nutrients (don’t eat it; eat = animals)