Tag: botany

Questions Related to botany

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

The action of bacterium Methylophilus methylotropus on methanol produces

  1. Pruteen

  2. Mycoprotein

  3. Ethanol

  4. Both A and B


Correct Option: A

Which microorganism is used for processing of molasses 

  1. Aspergillus

  2. Agaricus

  3. Saccharomyces

  4. Both A and C


Correct Option: D

Which of the following is not employed in single cell protein production?

  1. Chlorella

  2. Aspergillus

  3. Clostridium

  4. Saccharomyces


Correct Option: C

Pekilo, a fungal rich protein product is used a

  1. Animal feed

  2. Plant feed

  3. Human nutrient supplement

  4. None of the above


Correct Option: A

Evaluation of newly evolved varieties is carried out by

  1. All agricultural universities

  2. ICAR

  3. IARI

  4. National Bureau of Plant Genetic Resources.


Correct Option: B