Tag: plant breeding for food production

Questions Related to plant breeding for food production

Which of the following can be used for cultivation of SCP?

  1. Animal manure

  2. Straw

  3. Molasses

  4. All of these


Correct Option: D
Explanation:

Large quantities of single cell proteins like Spirulina can be grown easily on materials like waste water from potato processing plants, straw, molasses, animal manure and even sewage.

Single cell protein can be obtained from 

  1. bacteria

  2. algae

  3. fungi

  4. all of these


Correct Option: D
Explanation:

Single cell protein can be obtained from cells of microorganisms such as yeast, fungi, algae and bacteria which are grown on carbon sources for synthesis. SCP is a protein supplement for animals and humans. Example ; Spirulina produces large quantity of food which are rich in protein, carbohydrates, fats, minerals and vitamins. It also reduces environmental pollution. 

So, the correct option is 'Option D' .

Single cell production is enabled through

  1. Batch operation systems

  2. Continuous operation systems

  3. Discontinuous operation system

  4. Unique operation system


Correct Option: B

Single cell protein can be obtained from 

  1. Bacteria

  2. Algae

  3. Fungi

  4. All of the above


Correct Option: D
Explanation:

Single cell protein means the protein which can be obtained by the culture of single-celled organisms and these proteins are generally used as dietary supplements. Bacteria, algae, fungus all of them are either single-celled structures or the groups have one or more forms which are single-celled. Thus, all of them form sources of single-celled protein.

So, the correct answer is 'All of the above'.

Source of SCP is 

  1. Frankia

  2. Alnus

  3. Anabaena

  4. Spirulina


Correct Option: D
Explanation:

Spirulina is a cyanobacterium widely used as a source of supplementary protein. It is single-celled and is widely used as an SCP or Single cell protein supplement. 

So, the correct answer is option D, Spirulina.

The extraction of single cell protein is a

  1. Costly process

  2. Microorganisms are present in very high concentration

  3. Must be hydrated to prevent spoilage

  4. None of the above


Correct Option: A

By using single-cell protein, amount of protein that can be produced by algae grown in ponds (per acre) is

  1. 20 tons

  2. 30 tons

  3. 40 tons

  4. 50 tons


Correct Option: A
Explanation:

A- Single-cell proteins (SCP) are produced by a range of microorganisms and substrate. They are dried cells of microorganism. When SCP is produced, the microbial products produce sufficient proteinaceous substances that can be utilized as protein supplements for animal feeds or human foods. It is estimated that algae grown in ponds can produce 20 tons (dry weight) of protein, per acre, per year.

Substrate used by microorganisms to produce single-cell proteins includes

  1. Methane gas

  2. Industrial wastes

  3. Agricultural wastes

  4. All of the above


Correct Option: D

In India, Spirulina is promoted as a diet supplement by

  1. Fluid Control Research Institute (FCRI)

  2. Central Food Technology Research Institute (CFTRI)

  3. Central Institute of Agricultural Engineering (CIAE)

  4. Central Drug Research Institute (CDRI)


Correct Option: B