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(a) The shift from grain to meat diets creates more demands for cereals. Why?(b) A 250 kg cow produces 200 g of protein per day but 250 g of Methylophillusmethylotrophus can produce 25 tonnes of protein Name this emerging area of research. Explain its benefits.
(a) The shift from grain to meat diets creates more demands for cereals. Why?
(b) A 250 kg cow produces 200 g of protein per day but 250 g of Methylophillusmethylotrophus can produce 25 tonnes of protein Name this emerging area of research. Explain its benefits.
Biology | CBSE | Class 12 | Exercise 1 | NCERT Exemplar | Strategies for Enhancement in Food Production
(a) The shift from grain to meat diets creates more demands for cereals. Why?
(b) A 250 kg cow produces 200 g of protein per day but 250 g of Methylophillusmethylotrophus can produce 25 tonnes of protein Name this emerging area of research. Explain its benefits.

Solution: (a) We know that an organism at a specific trophic level consumes 90% of the biomass it consumes for its own needs, leaving just 10% for the creature at the next trophic level. So, to generate 1 kg of meat, 3 to 10 kg of grains must be spent on the cattle. This demonstrates that a transition from grain to meat diets increases cereal demand.

(b) This new field of study is known as single-cell proteins (SCP). Bacteria, fungi, and algae produce single-cell protein during the breakdown of organic molecules. The protein composition of the single-cell protein is quite high. The following are some of the advantages of this method:

• A higher output of protein per unit of biomass.

• More solar energy per square meter is used.

• This is a procedure that is friendly to the environment.

• The amount of land required is minimal.

• Production is not affected by seasonal or climatic changes.

• This could aid in addressing the issue of food security.

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