The main difference between Gram positive and Gram negative bacteria is
Cell membrane
Cell wall
Ribosome
Mitochondria
Related Questions
Which of the following is a symbiotic nitrogen fixer?
Glomus
Azotobacter
Frankia
Azolla
A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water fernAzolla is
Tolypothrix
Chlorella
Nostoc
Anabaena
Leprosy occurs due to
TMV
Monocystis
Salmonella
Mycobacterium
Bacteria are helpful in
Making curd from milk
Production of antibiotics
Fixing nitrogen in legume roots
All of the above
State whether the given statements are true or false
I. Bacteria shows both autotrophic and heterotrophic nutrition
II. Some of the bacteria are autotrophic. They may be photosynthetic autotrophic or chemosynthetic autotrophic
III. Heterotrophic nutrition involves the obtaining of readymade organic nutrients from outside sources
I and II are true
I is true, II and III is false
I, II and III are true
I, II and III
Cyanobacteria are:
Producers
Decomposers
Consumers
All the above
The following are produced in Bacteria during unfavourable conditions:
Endospores
Exospores
Cysts
Capsules
Oxygenic photosynthesis occurs in
Chromatium
Chlorella
Rhodospirillum
Chlorobium
Bacteria that fix by using chemical energy as source, are
Photoautotrophs
Photoheterotrophs
Chemoautotrophs
Chemoheterotrophs
Nitrifying bacteria are able to
Convert atmospheric nitrogen into soluble forms
Convert ammonia to nitrate
Ammonia to nitrogen
Nitrate to nitrogen
