作者：Shweta karki 2 年以前
137
Six kingdom of life
Six kingdom of life
Eubacteria
Bacteria, cyanobacteria (blue-green algae), and actinobacteria
Depending on species, nutrition intake may occur through absorption, photosynthesis, or chemosynthesis
Asexual
Depending on species, oxygen may be toxic, tolerated, or needed for metabolism
some motile
fix nitrogen
decomposers
peptidoglycan
Bacteria
Live Everywhere, EXCEPT extreme environments, including in human.
Harmful and beneficial
Protists
Amoebae, green algae, brown algae, diatoms, euglena, and slime molds
Depending on species, nutrition intake may occur through absorption, photosynthesis, or ingestion
Mostly asexual, but meiosis occurs in some species
motile/nonmotile
algae major aquatic oxygen & food producers
algal bloom
pectin or none
(green algae: cellulose)
Unicellular and Multi cellular
All Eukaryote (Complex with nucleus and organelles)
Odds and ends kingdom members are different
Plants
trees
flowers
grass
autotroph
sexual/asexual
physical and chemical events of photosynthesis, respiration, and the synthesis and degradation of organic compounds
major oxygen & food source (photosynthesis - trophic level 1)
cellulose
Multicellular consists of complex cells.
Eukaryote
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Photosynthesis
12 major groups or Phyla
Classified by tissue, seed and stature
Archaebacteria
Methanogens, halophiles, thermophiles, and psychrophiles
Depending on species, nutrition intake may occur through absorption, non-photosynthetic photophosphorylation, or chemosynthesis
Asexual reproduction by binary fission, budding, or fragmentation
Depending on species, oxygen, hydrogen, carbon dioxide, sulfur, or sulfide may be needed for metabolism
nonmotile
contains uncommon lipids
Unicellular
Prokaryotes (simple cells no nucleus)
Archaea
Extreme salty water, sewer, acid, thermal
Microspcopic
3.5 billion years old
No oxygen
Fungi
Mushrooms, yeast, and molds
Absorption
Sexual or asexual through spore formation
most nonmotile
decomposers
chitin
Unicellular (yeast only)
Rest are multicellular
All Eukaryote
Fungi 'eat' by releasing enzymes to break down nutrients then absorb.
Fungi always live in and on their food.
Animals
Example
Mammals, amphibians, sponges, insects, worms
Nutrition
Ingestion
Reproduction
Sexual reproduction occurs in most and asexual reproduction in some
Metabolism
Oxygen is needed for metabolism
Motility
motile
Ecological Importance
human impact on environment
Cell Wall
none
Cell Type
Multicellular
Eukaryote
Domain
Eukarya
Description
Oxygen
Grow
Reproduce
Over 2 million species
