MCQ Practice Test – Chapter 8- Microbes In Human Welfare

Microorganism used for commercial production of acetic acid is?

Which of the following statements is correct with regard to biocontrol agents ?

Which one of the following pairs is correctly matched?

Study the following statements regarding lactic acid bacteria (LAB) which are used to convert milk into curd.

Monascus purpureus is a yeast commercially used in the production of

A sewage treatment process, in which a part of decomposing bacteria present in the wastes is recycled into the starting of the process, is called ___________.

Identify the correct sequence of steps involved in the treatment of sewage.

Which one of the following combinations of organisms are responsible for the formation and flavour of yogurt?

Which of the following is the pair of biofertilizers for nitrogen fixation?

Which of the following antibiotics is not correctly matched with the source from which it is obtained?

A compound which is produced by an organism and inhibits the growth of other organism is called as

A free living nitrogen-fixing cyanobacterium, which can also form symbiotic association with the water fern Azolla is

Bt toxin protein crystals present in bacterium Bacillus thuringiensis, do not kill the bacteria themselves because

The roots of some higher plants get associated with a fungal partner. The roots provide food to the fungus while the fungus supplies water to the roots. The structure so formed is known as ______.

Highest number of antibiotics are produced by

Identify two correct statements from the following.

Match the columns and choose the appropriate option.

Cyclosporin A, used as immunosuppressive agent in organ transplants is produced by.

Select the correct statement.

Which of the following is used as a biofertilizer for the cultivation of soybean crop?