Introduction Flashcards
__________ was the earliest to attempt a scientific basis for classification
aristotle
aristotle used ________ characters to classify plants into ________, __________ and __________
he also divided animals into two groups ________________ and ____________
morphological
trees
shrubs
herbs
those which had red blood
those which did not have red blood
in _________’s time, two kingdom system of plantae and animalia was developed
linnaeus
who in 1969 proposed a five kingdom classification and which were those five kingdoms
R.H. Whittaker
monera, protista, fungi, plantae, animalia
which were the main criteria used by R.H. Whittaker for his classification
cell structure
thallus organisation
mode of nutrition
reproduction
phylogenetic relationships
cell type of monera
prokaryotic
cell wall of monera
noncellulosic
(polysaccharides + amino acids)
body organisation of monera
cellular
mode of nutrition of monera
autotropic (chemosynthetic / photosynthetic)
heterotrophic (saprophytic / parasitic)
cell type of protista
eukaryotic
is cell wall present in all protists
present in some
body organisation of protista
cellular
mode of nutrition of protista
autotrophic (photosynthetic)
heterotropic
cell type of fungi
eukaryotic
cell wall of fungi
present
without cellulose
with chitin
body organisation of fungi
multicellular / loose tissue
mode of nutrition of fungi
heterotropic (saprophytic / parasitic)
cell wall in plantae
present
with cellulose
body organisation of plantae
tissue / organ
mode of nutrition of plantae
autotrophic (photosynthetic)
body organisation of animalia
tissue / organ / organ system
mode of nutrition of animalia
heterotrophic (holozoic / saprophytic etc)
earlier classifications included which all types of organisms under plants only due to presence of cell wall
bacteria
blue green algae
fungi
mosses
ferns
gymnosperms
angiosperms
unicellular and multicellular organisms were placed in same groups earlier
for example
chlamydomonas and spirogyra were placed under algae
chlorella was earlier placed in which kingdom and is now placed in which kingdom
plants
protista
paramoecium and amoeba were earlier placed in which kingdom and why and are now placed in which kingdom
animalia
absence of cell wall
protista
