Class 12th Biology - Strategies for Enhancement in Food Production Case Study Questions and Answers 2022 - 2023
By QB365 on 08 Sep, 2022
QB365 provides a detailed and simple solution for every Possible Case Study Questions in Class 12 Biology Subject - Strategies for Enhancement in Food Production, CBSE. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.
QB365 - Question Bank Software
Strategies for Enhancement in Food Production Case Study Questions With Answer Key
12th Standard CBSE
-
Reg.No. :
Biology
-
Following are the steps in MQET (Multiple Ovulation Embryo Transfer) programme for the improvement of herd, in which a cow has been administered hormones with FSH-like activity.
(a) Arrange the steps A to D in their correct sequence:
A. Transferred to a surrogate mother.
B. It is mated with an elite bull or artificially inseminated.
C. Fertilised eggs at 32-celled stage are recovered non-surgically.
D. It produces 6-8 eggs instead of one egg which they normally yield per cycle.
(b) Why was the cow administered hormones with FSH-like activity?(a) -
Fisheries has an important place in Indian economy. It provides income to millions of fishermen and farmers, especially in the coastal states. In order to meet the increasing demand on fisheries, different techniques have been employed to increase production of fishes.
(a) Name two such techniques employed to increase fish production.
(b) What term is given to the movement being implemented in the same lines as Green Revolution.
(c) Name two freshwater fishes very commonly used as food.(a) -
The steps in a programme are given below:
(i) Collection of germplasm.
(ii) Crossbreeding the selected parents.
(iii) Selecting the superior recombinant progeny.
(iv) Testing, release and commercialisation ofthe new cultivars.
Answer the following qeustions:
(a) What is this programme called?
(b) Name two important qualities that form the basis of selection of the progeny.
(c) What was the outcome of this programme?
(d) What is the popular term given to this outcome? Name the Indian scientist who is credited with the chalking out this programme.(a) -
More than 840 million people in the world do not have adequate food to meet their daily nutritional requirements. According to Global Hunger Index, 2014, about three billion people suffer from 'hidden hunger'.
(a) Apply your knowledge of plant breeding techniques to suggest a programme to improve public health.
(b) Specify four objectives of this programme.(a) -
Life style diseases are increasing alarmingly in our country. We are facing large scale malnutrition also in the population.
(a) Suggest a programme by which we can address these problems.
(b) Give any two examples to support your answer.(a) -
More than 25 per cent of human population is suffering from hunger and malnutrition. Conventional methods of agricultural production are not able to meet the demand of food at the rate which human population is increasing.
(a) Mention an alternate source of proteins for human and animal nutrition.
(b) Name any two microbes used as food supplements and explain their role.(a) -
Demand for mushroom as food has led to its culturing on a large scale. Similarly, it is perceived that microbes too would become acceptable as food.
(a) Identify a microbe which can be cultured as a food source .
(b) Mention the advantages of its culture.(a) -
Mr. Arjun Singh has a high quality banana plantation in his field; but the yield suffered due to infection of the plants by a virus.
(a) Suggest a fast and efficient method to get a large number of healthy/virus-free plants in the next generation without compromising on the existing quality.
(b) Justify the selection of your method.
(c) Name two other plants that are produced on a commercial scale using this method.(a)
Case Study
*****************************************
Answers
Strategies for Enhancement in Food Production Case Study Questions With Answer Key Answer Keys
-
(a) D\(\to \) B \(\to \)C \(\to \)A.
(b) It is to induce super ovulation, i.e., to produce 6-8 eggs instead of one per cycle. -
(a) Aquaculture and pisciculture.
(b) Blue Revolution
(c) Catla, Rohu, Common carp. -
(a) Plant breeding
(b) (i) High yield.
(ii) Disease-resistance.
(iii) Drought-resistance.
(iv) Better quality of the produce.
(c) The productivity of crops increased significantly.
(d) (i) Green Revolution
(ii) M.S. Swaminathan. -
(a) The programme is biofortification, which refers to breeding of crops with improved nutritional quality, i.e., with higher levels of vitamins, minerals, proteins, healthier fats, etc.
(b) The objectives of biofortification are to increase/ improve.
(i) protein content and quality.
(ii) oil content and quality.
(iii) vitamin content.
(iv) micronutrient and mineral content. -
(a) Biofortification, i.e., breeding of crops with higher levels of nutrients like vitamins, minerals, proteins and healthier fats.
(b) (i) Biofortified maize variety has twice the amount of amino acids, lysine and tryptophan, compared to the normal varieties.
(ii) Biofortified rice variety contains over five times as much iron as the normal varieties.
(iii) Hybrid wheat variety with high protein content has been produced using the high protein variety, Atlas-66 as donor. -
(a) Single cell protein (SCP)
(b) (i) Spirulina is grown on a large scale on cheap and waste materials; it is rich in vitamins, minerals, fats, proteins, etc.
(ii) Methylophilus methylotrophus.
(i) 250 g of this microbe can be expected to produce 25 tonnes of proteins. -
(a) Spirulina can be cultured as a food source.
(b) Advantages
(i) It is a food rich in proteins, minerals, vitamins, carbohydrates, fats, etc.
(ii) It can be cultured in large quantities on cheap and waste materials like waste water from potato processing industries, molasses, animal manure, etc.; hence, pollution from these sources is reduced. -
(a) Tissue culture of meristems is the method.
(i) Producing a large number of plants through tissue culture, is called micropropagation.
(b) Though the plants are infected with a virus, the meristems are free of virus.
(c) Tomato and apple.