Chemosynthetic autotrophs derive energy by

1. By sunlight
2. By oxidation of inorganic substances
3. By reduction of inorganic substances
4. By reduction followed by oxidation of inorganic substances

The majority of heterotrophic bacteria are

1. Decomposers
2. Autotrophs
3. Lithotrophs
4. Organotrophs

Lactobacillus comes under which category

1. Autotrophs
2. Lithotrophs
3. Organotrophs
4. Heterotrophs

Leguminous plants have bacteria with which kind of mode of nutrition-

1. Heterotrophs
2. Autotrophs
3. Lithotrophs
4. Organotrophs

Which of the following is not a bacterial disease

1. Citrus canker
2. Cholera
3. Plague
4. Mumps

Which of the following is not a mode of bacterial reproduction?

1. Fission
2. Spore formation
3. Conjugation
4. Fragmentation

Mycoplasma are not possessing which of the following features?

1. Lack cell wall
2. Pleomorphic
3. Can't survive without oxygen
4. Except b all are correct

------- mycoplasma are pathogenic in …….

1. Many, animals and plants
2. All, animals and plants
3. All, animals
4. All, plants

Which is incorrect regarding protista?

1. The boundaries of this kigdom is not clear
2. Forms a link with other organisms
3. Some have flagella or cilia
4. No membrane bound organelles

Which of the following was not a feature of kingdom Monera but that of protista?

1. True genetic recombination
2. Cell wall
3. Cellular body organization
4. Heterotrophic mode of nutrition