Kingdom Monera Flashcards
who are the sole members of kingdom monera
bacteria
which organisms can live in hot springs, deserts, snow and deep oceans where most life forms cannot survive
bacteria
four categories of bacteria based on their shape
spherical coccus
rod shaped bacillus
comma shaped vibrium
spiral shaped spirillum
two types of bacteria
archaebacteria
eubacteria
which type of bacteria live in harsh habitats
archaebacteria
archaebacteria that live in extreme salty areas are called
halophiles
archaebacteria that live in hot springs are called
thermoacidophiles
archaebacteria that live in marshy areas are called
methanogens
which feature of archaebacteria is responsible for their survival in extreme conditions
they have a different cell wall as compared to other bacteria
which archaebacteria are present in the gut of several ruminants such as cows and buffaloes and they are also responsible for production of which biogas from the dung of these animals
methanogens
methane
what are eubacteria characterised by
presence of a rigid cell wall and, if motile, a flagellum
cyanobacteria have ______________ similar to green plants and they are photosynthetic autotrophs
chlorophyll ‘a’
the colonies of cyanobacteria are generally surrounded by
a gelatinous sheath
cyanobacteria often form blooms in ___________
polluted water bodies
cyanobacteria can fix atmospheric nitrogen in specialised cells called ____________
examples
heterocysts
nostoc and anabaena
chemosynthetic autotrophic bacteria oxidise various inorganic substances such as ________________________________ and use the released energy for ATP production
nitrates, nitrites and ammonia
heterocysts play a great role in recycling which nutrients
nitrogen
phosphorus
iron
sulphur
examples of where heterotropic bacteria is helpful in human affairs
making curd from milk
production of antibiotics
fixing nitrogen in legume roots
some well known diseases caused by bacteria
cholera
typhoid
tetanus
citrus canker
bacteria reproduce mainly by ________
fission
sometimes, under unfavourable conditions, bacteria produce ___________ to reproduce
spores
how do bacteria sexually reproduce
adopting a primitive type of DNA transfer from one bacterium to the other
which organisms completely lack a cell wall
mycoplasma
can mycoplasma survive without oxygen
yes
(also many of them are pathogenic)
