MCQ Bank
Fermentation is defined as
- A) ALL of above
- B) Metabolic process that consumes sugar in the absence of oxygen.
- C) Chemical conversion of sugar into ethanol producing alcoholic drinks
- D) Producing energy by the degradation of organic nutrients anaerobically
The majority of biofuel come from food crops either sugars or oils are called ----------.
- A) none
- B) Second generation biofuel
- C) first generation biofuel
- D) Third generation biofuel
Examples of nitrogen biofertilizers are
- A) All
- B) Bacillus subtilis
- C) E.coli
- D) Azotobacteria
Solvents and enzymes are found in which of the following categories of microbial products?
- A) Alcoholic beverages
- B) Food supplements
- C) Pharmaceutical chemicals
- D) Commercially valuable chemicals
A ------ is defined as any fuel whose energy is obtained through a process of biological carbon fixation.
- A) Fuel
- B) Diesel
- C) none
- D) Biofuel
What is a genetically modified organism?
- A) An organism that has had its DNA changed by humans
- B) An organism that is not native to the area
- C) A top predator that controls the balance of the food web
- D) An organism with natural changes to its DNA through selective breeding
Example of psychrophilic lactic acid bacterium include?
- A) Vibrio
- B) Clostridium
- C) LACTOBACILLUS SAKEI
- D) Bacillus
Which of the following is not used as a Biopesticide?
- A) Bacillus thuringiensis
- B) Xanthomonas campestris
- C) Nuclear Polyhedrosis Virus (NPV)
- D) Trichoderma harzianum
Using worms to recycle food scraps and other organic material into a valuable soil amendment called
- A) ALL of above
- B) Backyard composting
- C) Vermicomposting
- D) Composting
Pakistan is the world's fourth largest producer of cotton?
- A) False
- B) True
- C)
- D)
Which of following is an example of genetically engineered organisms
- A) A plant that received external DNA to produce natural insecticides
- B) A plant that naturally possesses medicinal properties
- C) Seedless fruits resulting with chemical spray
- D) A new plant created as a result of mutation
In 1997, more than ------ tons of heavy oil leaked from the Russian tanker Nakhodka, which ran aground and sank in the Sea of Japan.
- A) 5000
- B) 1000
- C) 3000
- D) 2000
There are following class of Pattern Recognition Receptor.
- A) RIG-1 like receptors (RLRs)
- B) Toll-like receptors (TLRs)
- C) Nod-like receptors (NLRs)
- D) All of above
Vaccination was invented by
- A) Jenner
- B) Pasteur
- C) Koch
- D) Salk
Single Cell Proteins are --------- cells that are rich in protein, minerals, fats, carbohydrate and vitamins and can be used as food supplements for humans and animals.
- A) Antigenic
- B) Single
- C) None
- D) Microbial
The vaccines prepared through recombinant DNA technology are
- A) First generation vaccines
- B) Second generation vaccines
- C) None
- D) Third generation vaccines
--------------- is used as an immunosuppressive agent in organ-transplant patients is produced by the fungus Trichoderma polysporum.
- A) tetracycline
- B) streptomycin
- C) Cyclosporin A
- D) chloramphenicol
Transgenic plants are attempts to engineer metabolic pathways for the production of tailor-made plant polymers or low molecular weight compounds?
- A) False
- B) True
- C)
- D)
In Phase III, the vaccine is given to ------- of people and tested for efficacy and safety.
- A) Million
- B) Thousand
- C) Hundred
- D) Small
The type of Fermentation in which the nutrient substratum is liquid and the organism grows inside the substratum.
- A) Solid state (substratum) fermentation
- B) Fermentation
- C) Submerged fermentation
- D) Surface fermentation