Tag: food production

Quizzes (39) Questions (28)

Questions Related to food production

Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Caffeine, a constituent of tea and coffee is actually.

  1. A polyamine

  2. An oligosaccharide

  3. An alkaloid

  4. A lipoprotein
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Caffeine is a naturally occurring nitrogenous plant compound classified chemically as an alkaloid, known for its stimulant effects on the central nervous system.

Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

The most thoroughly studied of the known bacteria-plant interactions is the :-

  1. Gall formation on certain angiosperms by Agrobacterium

  2. Nodulation of Sesbania stems by nitrogen fixing bacteria

  3. Plant growth stimulation by phosphate solubilising bacteria

  4. Cyanobacterial symbiosis with some aquatic ferns
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Agrobacterium tumefaciens is called a natural plant genetic engineer. Using Agrobacterium vector, nematode specific genes were introduced into the host plant. The introduction was as such that it produced both sense and anti-sense RNA in the host cells. These two RNA's being complementary to each other formed a double-stranded (ds-RNA) that initiated RNAi and thus, silenced the specific mRNA of the nematode. The Agrobacterium is most widely studied of the known bacteria-plant interactions.
So the correct answer is 'Option A'.
Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Commercial source of manufacture of cheese especially for giving flavour to it, its from _____________.

  1. Citrus fruit

  2. Aspergillus

  3. Penicillium

  4. Bacteria
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Various bacteria, such as Propionibacterium and others, are used in the cheese-making industry to develop specific flavors and textures during the ripening process.

Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Which one of the following is a viral disease of chickens ?

  1. pullorum disease

  2. Ranikhet

  3. mycotic disease

  4. fowl spirochaetosis.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ranikhet disease, also known as new castle disease, is found in young birds. Its symptoms include sneezing, gasping and often  droopiness. The affected birds are depressed with ruffled feathers. Control of Ranikhet disease can be done by sanitary and vaccination measures.

Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Which is not a bacterial action?

  1. Nitrogen fixation

  2. Emulsification of fat

  3. Sewage disposal

  4. Ripening of cream
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Nitrogen fixation is a process by which atmospheric nitrogen is converted into ammonium compounds and made available for plants. Examples include Rhizobium, Azotobacter.
  • Many bacteria are also involved in the sewage disposal process. Mostly saprophytic aerobic bacteria are used in treatment plants.
  • During the process of ripening of cream, Lactic acid bacteria are used. These bacteria convert lactose into acid and results in the curdling of cream.
Thus, the correct answer is 'Emulsification of fat.'

Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Cellulose present in the food of grazing animals is

  1. Digested by intestinal bacteria

  2. Digested by animal itself

  3. Digested partly by the animal and party by bacteria

  4. Passed out undigested
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Grazing is a method of feeding in which an animal feeds on plants such as grasses. The animals are called grazing animals. They are also called as Ruminants. Examples include cattle, sheep, goats, deer. They are capable of digesting cellulose present in the plants. The cellulose is digested by intestinal bacteria present in them. These bacteria possess the necessary enzymes to digest cellulose in the GI tract.

Thus, the correct answer is 'Digested by intestinal bacteria.'

Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Which of the following is non pathogenic bacteria of colon?

  1. E. coli

  2. Balantidium coli

  3. Entamoeba coli

  4. Enterbius vermicularis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Escherichia coli, also known as E. coli, is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms.
  • Escherichia coli (E. coli) bacteria normally live in the intestines(colon) of Humans and animals.
  • E.coli  is nonpathogenic bacteria of the colon because it is present in the colon but do not cause any disease.
  • So, the correct answer is 'E.coli'.
Multiple choice biology food production food production and microorganisms microbial products - food, medicines and industrial products uses of microorganisms

Which is wrongly matched 

  1. Clostridium butylicum - Lactic acid

  2. Aspergillus hiner - Citric acid

  3. Yeast - Statins

  4. Acetobacter aceti - Acetic acid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Clostridium butylicum is used to produce butyric acid. Lactic acid is produced by Acetobacter.

So, the correct option is 'Clostridium butylicum - Lactic acid'