AIPMT-PRELIMS Botany Microbes in Human Welfare Class 12 Questions
27 questions
Yeast is used in the production of
Which one of the following is an example of carrying out biological control of pests/diseases using microbes?
A nitrogen-fixing microbe associated with Azolla in rice fields is
Monascus purpureus is a yeast used commercially in the production of
Organisms called Methanogens are most abundant in a
Secondary sewage treatment is mainly a
Which of the followings is mainly produced by the activity of anaerobic bacteria on sewage?
Ethanol is commercially produced through a particular species of
The most common substrate used in distilleries for the production of ethanol is
An organism used as biofertilizer for raising soyabean crop is
Consider the following statements regarding biogas production:
An effective biocontrol agent for several plant diseases is
T.O. Diener discovered a:
The bacterium Bacillus thuringiensis is widely used in contemporary biology as:
Thermococcus, Methanococcus and Methanobacterium exemplify:
Trichoderma harzianum has proved a useful microorganism for:
Which one of the following pairs is wrongly matched?
For retting of jute the fermenting microbe used is:
Which one of the following pairs is not correctly matched :-
A major component of gobar gas is :-
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded :-
The term "antibiotic" was coined by : -
Which bacteria is utilized in Gober gas plant:
During the formation of bread it becomes porous due to release of CO₂ by the action of:
Which of the following is true pair of biofertilizers :-
What is B.O.D. :-
Which of the following is used to manufacture ethanol from starch: