In sewage treatment, flocs are:
The masses of bacteria associated with fungal filaments.
Flocs are aggregates of microorganisms, particularly bacteria, that are associated with fungal filaments to form a network-like structure. These are formed during the secondary treatment stage of sewage treatment, also known as the biological treatment stage. Flocs consume organic matter in the sewage, breaking it down into simpler substances. The treated water is then separated from the flocs, which are either recycled to maintain the microbial population or processed further as sludge.
Streptokinase enzyme is used for:
Given below are two statements:
Statement I: Whisky, brandy, and rum are produced without distillation of the fermented broth.
Statement II: Saccharomyces cerevisiae is called doctor’s yeast.
In the light of the above statements, choose the correct answer from the options given below:
The beetle used as a biocontrol agent for aphids and mosquitoes is:
Match List-I with List-II:
List-I (Products)
List-II (Organisms)
| List-I | List-II |
|---|---|
| (A) Statin | (I) Streptococcus |
| (B) Clot buster | (II) Trichoderma |
| (C) Swiss cheese | (III) Monascus |
| (D) Cyclosporin-A | (IV) Propionibacterium |
Choose the correct answer from the options given below:
Which of the following is not the correctly matched pair of organism and its respective cell wall degrading enzyme?
Microbe responsible for converting milk to curd is:
Arrange the stages in the life cycle of Plasmodium after the bite of a mosquito:
Choose the correct answer from the options given below:
Identify the correct statements with respect to Baculoviruses:
Choose the correct answer from the options given below:
Use of biofertilizers as a nutrient source is practiced in:
Arrange the following steps of sewage treatment in sequential order:
A. Primary effluent passed in aeration tank
B. Activated sludge is formed
C. Filtration and sedimentation of sewage
D. Aerobic microbes grow into flocs
Choose the correct answer from the options given below: