gram-positive bacteria
gram-negative bacteria
all bacteria
only some bacteria
C. all bacteria
Robert Koch
Louis Pasteur
A.V. Leeuwenhoeck
Robert Hooke
Sewage disposal
Nitrogen fixation
Emulsification of fat
None of these
ammonia to nitrite
nitrite to nitrate
nitrate to free nitrogen
nitrogen to ammonia
mitochondria
mesosomes
ribosomes
cell membrane
bacterioviridim
bacteriochlorophy11
chlorophyll
both (a) and (c)
Bacillus coli
Streptococcus spp.
Pasteurella pestis
Clostridium tetani
Staphylococcus
Streptococcus
Azotobacter
None of these
fertile soil
water
human intestine
all of these
chitin
mucopeptidc
lignin
suberin
fats
proteins
starch
oils
DNA
RNA
Chromosome
None of these
all plants except fungi
all green plants except prokaryotes
all green plants except bacteria
all green plants except cyanobacteria
tanning of leather
flavouring of tea leaves
curdling of milk
none of these
Escherichia coli
Clostridium botulinum
Both (a) and (b)
None of these
sexduction
transduction
conjugation
transformation
cell wall
cytoplasm
ribosomes
endoplamic reticulum
algae
bacteria
bryophyta
fungi
Coccus
Bacillus
Spirillum
Vibrio
gram-positive bacteria
gram-negative bacteria
all bacteria
only some bacteria
Mesosomes
Nucleoid
Chromatophores
Pili
produce spores
have cell walls
cannot move
produce enzymes
All bacteria are autotrophic
All bacteria are heterotrophic
All bacteria are photosynthetic
Most of the bacteria are heterotrophic but some are autotrophic
Robert Koch
L. Pasteur
T. Boveri
F.Jacob
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
high temperature
moderately high temperature
moderate temperate
low temperature
Water
Soil
Air
Human body
monotrichous
peritrichous
amphitrichous
lophotrichous
Bacillus subtilis
Rhizobiunt
E. coli
None of these
atrichous
lophotrichous
amphitrichous
peritrichous
vibrio
cocci
spirilla
bacilli