bio lab 2 Flashcards
taxonomy
the scientific way of classifying organisms
taxonomic ranking
domain, kingdom, phylum, class, order, family, genus, species
(dear king phillip came over for good soup)
cell theory
all living organisms are composed of cells; arise from existing cells; basic unit of structure
cell
membrane-bound unit that is the smallest unit of life
cell components
cell membrane, enzymes, nucleic acid, ribosomes
cell membrane
semi-permeable bilayer that regulates materials in and out
enzymes
protein molecules speed up the process of chemical reactions
nucleic acids
molecules store and transmit genetic info (DNA –> RNA)
ribosomes
cell structures that are sites of protein synthesis
prokaryotes
small + unicellular
eukaryotes
membrane-bound organelles
example of prokaryotes
bacteria + archaea
examples of eukaryotes
animals, plants, fungi, humans
3 domains of life
bacteria, archaea, eukarya
bacteria
unicellular; autotrophic; rod shaped cells
plant
multicellular; autotrophic; cell walls made of cellulose; eukaryotic cells
fungus
multicellular; heterotrophic; fungal wall made of chitin; yeast cells
animal
multicellular; heterotrophic; golgi bodies; eukaryotic cells
most diverse?
bacteria - can be found literally anywhere
most morphologically diverse?
eukaryotes - contains the most characteristics