Nitrifying bacteria
Nitrogen fixing bacteria
Denitrifying bacteria
Putrefying bacteria
B. Nitrogen fixing bacteria
ammonia to nitrite
nitrite to nitrate
nitrate to free nitrogen
nitrogen to ammonia
sexduction
transduction
conjugation
transformation
tanning of leather
flavouring of tea leaves
curdling of milk
none of these
algae
bacteria
bryophyta
fungi
Rhizobium
Nitrosomonas
Beggiatoa
Nitrobacter
Water
Soil
Air
Human body
fertile soil
water
human intestine
all of these
mitochondria
mesosomes
ribosomes
cell membrane
nucleus
chromosomes
reduction division
syngamy
fungi
algae
lichens
bacteria
asexually only
sexually only
mostly asexually
mostly sexually
all plants except fungi
all green plants except prokaryotes
all green plants except bacteria
all green plants except cyanobacteria
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
Escherichia coli
Clostridium botulinum
Both (a) and (b)
None of these
Coccus
Bacillus
Spirillum
Vibrio
Rhizobiunt
Azotobacter
Clostridium
Rhodospirilium
fission
endospores
cyst
all of these
monotrichous
peritrichous
amphitrichous
lophotrichous
gram-positive bacteria
gram-negative bacteria
all bacteria
only some bacteria
Robert Koch
Louis Pasteur
A.V. Leeuwenhoeck
Robert Hooke
high temperature
moderately high temperature
moderate temperate
low temperature
produce spores
have cell walls
cannot move
produce enzymes
cell wall
cytoplasm
ribosomes
endoplamic reticulum
Nitrifying bacteria
Nitrogen fixing bacteria
Denitrifying bacteria
Putrefying bacteria
chitin
mucopeptidc
lignin
suberin
vibrio
cocci
spirilla
bacilli
atrichous
lophotrichous
amphitrichous
peritrichous
bacterioviridim
bacteriochlorophy11
chlorophyll
both (a) and (c)
Staphylococcus
Streptococcus
Azotobacter
None of these