fertile soil
water
human intestine
all of these
C. human intestine
Bacillus subtilis
Rhizobiunt
E. coli
None of these
gram-positive bacteria
gram-negative bacteria
all bacteria
only some bacteria
asexually only
sexually only
mostly asexually
mostly sexually
Water
Soil
Air
Human body
sexduction
transduction
conjugation
transformation
DNA
RNA
Chromosome
None of these
ammonia to nitrite
nitrite to nitrate
nitrate to free nitrogen
nitrogen to ammonia
fertile soil
water
human intestine
all of these
algae
bacteria
bryophyta
fungi
chitin
mucopeptidc
lignin
suberin
Robert Koch
Louis Pasteur
A.V. Leeuwenhoeck
Robert Hooke
fission
endospores
cyst
all of these
Sewage disposal
Nitrogen fixation
Emulsification of fat
None of these
nucleus
chromosomes
reduction division
syngamy
Staphylococcus
Streptococcus
Azotobacter
None of these
atrichous
lophotrichous
amphitrichous
peritrichous
monotrichous
peritrichous
amphitrichous
lophotrichous
mitochondria
mesosomes
ribosomes
cell membrane
tanning of leather
flavouring of tea leaves
curdling of milk
none of these
Nitrifying bacteria
Nitrogen fixing bacteria
Denitrifying bacteria
Putrefying bacteria
bacterioviridim
bacteriochlorophy11
chlorophyll
both (a) and (c)
high temperature
moderately high temperature
moderate temperate
low temperature
all plants except fungi
all green plants except prokaryotes
all green plants except bacteria
all green plants except cyanobacteria
Escherichia coli
Clostridium botulinum
Both (a) and (b)
None of these
Rhizobium
Nitrosomonas
Beggiatoa
Nitrobacter
Robert Koch
L. Pasteur
T. Boveri
F.Jacob
Coccus
Bacillus
Spirillum
Vibrio
vibrio
cocci
spirilla
bacilli
Some bacteria are parasitic
Food poisoning is caused by products of putrefying bacteria
Bacteria reproduce by cell division, as often as once every twenty minutes
Bacteria manufacture food by help of chloroplasts
Mesosomes
Nucleoid
Chromatophores
Pili