This set of Agricultural Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Agriculture – Bioprocessing Opportunities”.
1. Industries started using bioprocessing during World War-I for chemical production?
a) True
b) False
View Answer
Explanation: Alternate procedures were found to produce acetone and butanol. This was done using micro-organisms. Later petrochemical industries replaced the microbial production.
2. What is the percentage of alcohol present in gasohol?
a) 10%
b) 20%
c) 30%
d) 40%
View Answer
Explanation: Biomass energy, such as alcohol produced from grains and sugar, methane produced from animal manures and other waste products has received some recent attention for research.
3. Which is the compound that makes wood resistant to degradation?
a) Timber
b) Lignin
c) Cellulose
d) Chlorophyll
View Answer
Explanation: Lignin is a tough component. Potential for bioprocessing to create methane lies in using microbes and waste. Domestic sewage, manure, crop residues can be considered as waste.
4. Bioprocessing for bulk chemicals is difficult.
a) True
b) False
View Answer
Explanation: Bioprocessing for bulk chemicals is difficult to engineer even with a uniform feed stock such as sugarcane or corn. Problems are based on design of fermentation apparatus.
5. What is manufactured by Dunaliella bardawil?
a) Gasohol
b) Glycerol
c) Pulp
d) Carotene
View Answer
Explanation: Dunaliella bardawil is a microbe. This lives in Dead Sea. Glycerol is manufactured by it to counteract the pressures of its highly saline environment.
6. What is the solution used in Finland to feed certain molds?
a) Sulphate liquor
b) Phosphate liquor
c) Ammonium solution
d) Brine solution
View Answer
Explanation: Sulphate liquor purifies the waste liquids. It yields a rich residue. This residue is sold as animal feed.
7. Which of the following vitamins consist of a strain called Ashbya gossypii?
a) Vitamin B2
b) Vitamin B12
c) Vitamin A
d) Vitamin C
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Explanation: Ashbya gossypii produces 20,000 times its original output of vitamin B2. Research has also intensified microbial production of vitamin B12 over 50000 times.
8. Which year did Pasteur propose microbes cause fermentation?
a) 1857
b) 1867
c) 1877
d) 1888
View Answer
Explanation: Humans domesticated crops and livestock well before 8000 B.C. Potatoes were first cultivated for food. In 1830 proteins were discovered.
9. Who developed hybrid corn?
a) McClintock
b) Henry Wallace
c) Laibach
d) Kornberg
View Answer
Explanation: Hybrid crop was developed in 1920s. It was commercialized in 1933. Growing hybrid corn eliminates the option of saving seeds.
10. In which year was the term ‘genetic engineering’ first used?
a) 1940
b) 1941
c) 1942
d) 1943
View Answer
Explanation: A Danish microbiologist, A. Jost used the term ‘genetic microbiology’ for the first time. He used it in a lecture on reproduction in yeast at the technical institute in Lwow, Poland.
11. Who discovered Penicillin?
a) Stanley Cohen
b) Herbert Boyer
c) Alexander Fleming
d) Harris
View Answer
Explanation: Alexander Fleming discovered Penicillin as an antibiotic. He discovered it in 1928. In the same year, the use of Bacillus thuringiensis began in Europe for corn borer control.
12. In which year was the first machine to synthesize gene was developed?
a) 1980
b) 1986
c) 1992
d) 1995
View Answer
Explanation: In 1980, Nobel Prize was awarded in Chemistry for the creation of the first recombinant molecule. This was awarded for Berg, Gilbert and Sanger.
Sanfoundry Global Education & Learning Series – Agricultural Biotechnology
To practice all areas of Agricultural Biotechnology, here is complete set of 1000+ Multiple Choice Questions and Answers.
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