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12th Grade > Biology

STRATEGIES FOR ENHANCEMENT IN FOOD PRODUCTION MCQs

Total Questions : 54 | Page 2 of 6 pages
Question 11. In the given image, “A” represents the aim of blue, green and white revolution, identify the correct option with respect to“A”.
In The Given Image, “A” Represents The Aim Of Blue, Gree...
  1.    Increase in food productivity
  2.    Improvement of agricultural practice in india
  3.    Production of cereals
  4.    Increasing the productivity of aquatic animals
 Discuss Question
Answer: Option A. -> Increase in food productivity
:
A
To increase food production, there are two aspects which need to be focussed on - (i) Plant breeding, to increase the production of plant products and (ii) Animal husbandry, to increase the production of animal products. To meet national requirement of food production, the establishment of plant breeding technique called ‘Green Revolution’ brought about a huge improvement in the production of cereals. The success of Green Revolution also led to the ‘White Revolution’ and ‘Blue Revolution’ in India. The Blue Revolution aimed at increasing the productivity of aquatic animals whereas the White Revolution aimed at increasing the productivity of dairy products in India. Overall the aim of these three programmes was to meet the aspect of food production by improving and also increasing the global food productivity.
Question 12. Which of the following sentences represents the given image?
(I) Dairy productivity in India is high
(II) China is the world's leading producer of meat
(III) Major percentage of the world's livestock is in India and China
(IV) Maximum production of meat is in Brazil
RankCattlePigsSheepGoat1BrazilChinaChinaIndia2IndiaUSAIndiaChina3USABrazilAustraliaPakistan4ChinaVietnamIranNigeria5EthiopiaGermanyNigeriaIran6ArgentinaSpainUKEthiopia7PakistanRussiaNew ZealandIndonesia8MexicoMexicoPakistanMali9ColombiaFranceEthiopiaMongolia10AustraliaPolandSouth AfricaTanzania
 
  1.    Only I
  2.    II and III
  3.    I and II
  4.    I, II, III
 Discuss Question
Answer: Option D. -> I, II, III
:
D
Dairy productivity in India is high as you you can see in the chart, India is first in rearing goat and second in sheep. China is the world’s leader in production of meat as it ranks first in both pig and cattle rearing. Major percentage of the world’s livestock is in India and China (you can see in the chart that China is first in pig and sheep rearing and second in goat rearing).
Question 13. Match the following
 P. Bos Indicusi. Reared for milk productionQ. Bos Taurusii. Humped cattleR. Milch breediii. Reared for workS. Draught breediv. Reared for both milk and workT. General utility breedv. Nonhumped cattle
  1.    P ⇒ iii., Q ⇒ ii., R ⇒ i., S ⇒ v., T ⇒ iv
  2.    P ⇒ ii., Q ⇒ v., R ⇒ i., S ⇒ iii., T ⇒ iv
  3.    P ⇒ ii., Q ⇒ iv., R ⇒ i., S ⇒ iii., T ⇒ v
  4.    P ⇒ iv., Q ⇒ v., R ⇒ i., S ⇒ iii., T ⇒ ii
 Discuss Question
Answer: Option B. -> P ⇒ ii., Q ⇒ v., R ⇒ i., S ⇒ iii., T ⇒ iv
:
B
Bos indicus has humps on the shoulders and is of Indian origin. Bos taurus is non-humped and has an European and North American origin. The breeds of cows that are reared for milk are called milch breeds while those used for work are called draught breeds. The breeds that can be used as milk producers and also as draught animals are called general utility breeds.
Question 14. Spirulina is a
  1.    Edible fungus
  2.    Biofertilizer
  3.    Biopesticide
  4.    Single cell protein
 Discuss Question
Answer: Option D. -> Single cell protein
:
D
Spirulina is simply a type of cyanobacteria. Single-cell protein (SCP) refers to edible unicellular microorganisms. The biomass or protein extracted from pure or mixed cultures of algae, yeast, fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods, and it is also suitable for human consumption or as animal feeds.
Question 15. Which one of the following insects produces honey?
  1.    Antherae paphia
  2.    Apis indica
  3.    Kerria lacca
  4.    Bombyx mori
 Discuss Question
Answer: Option B. -> Apis indica
:
B
Apis indicais species of bee that is commonly found in the forests and plains of India. This species is very gentle in nature so can be domesticated easily. But the production of honey is very less i.e. is 6-7 pounds per honeycomb.The South India small tussore (Antheraea paphia) is a moth of the Saturniidae family found in India and Sri Lanka.Lac is the scarlet resinous secretion of a number of species of lac insects, of which the most commonly cultivated species is Kerria lacca.The silkworm is the larva or caterpillar of the domesticated silk moth, Bombyx mori.It is an economically important insect, being a primary producer of silk.
Question 16. Humans have managed to survive even after battling severe food crises on Earth.
  1.    True
  2.    False
  3.    Cross breed
  4.    All of the above
 Discuss Question
Answer: Option A. -> True
:
A
Humans appeared on Earth millions of years ago. They have lived through most of their time on Earth, battling odds viz., the elements of the earth, famines (crop failure), epidemics (widespread of infectious disease) and wars (armed conflict among different countries). They have managed to survive and establish a population of about 1 billion in the 17th century and it has been increasing ever since.
Question 17. An example of a semi-dwarf variety of rice is _________.
  1.    IR-8
  2.    Sonalika
  3.    Triticum
  4.    Saccharum
 Discuss Question
Answer: Option A. -> IR-8
:
A
India adopted IR-8, a semi-dwarf rice variety developed by the International Rice Research Institute (IRRI) that could produce more grains of rice per plant when grown with certain fertilizers and irrigation. Sonalika and triticum are wheat varieties. Saccharum is sugarcane variety.
Question 18. Identify the set with a common feature.
 
  1.    Spirulina, Methylophilus, Chlorella, Saccharomyces
  2.    Spirulina, E. coli, Cladophora, Amanita phalloides
  3.    Spirulina, Methylophilus, Amanita phalloides, Saccharomyces
  4.    Spirulina, Methylophilus, Chlorella, Amanita phalloides
 Discuss Question
Answer: Option A. -> Spirulina, Methylophilus, Chlorella, Saccharomyces
:
A
Edible microbes or technically Single Cell Proteins, in short SCP, make a good alternate source of proteins for animal and human nutrition. Microorganisms like algae, fungi, yeast and bacteria utilize inexpensive feedstock and wastes as sources of carbon and energy for growth to produce biomass, protein concentrate or amino acids. Spirulina maxima, Chlorella pyrenoidosa are algae that can be used to produce SCPs. Fungi like Saccharomyces cerevisiae and bacteria such as Methylophilus methylotrophusare also good sources of SCPs.
Question 19. Choose the characteristic of a crop which is not desired for plant breeding.
  1.    Adaptability for all weather conditions
  2.    High-yielding plant varieties
  3.    Disease-free plant varieties
  4.    Develop plants with low nutritional level
 Discuss Question
Answer: Option D. -> Develop plants with low nutritional level
:
D
Plant breeding is defined as genetic improvement of crops in order to create desired plant types that are better suited for cultivation in all weather conditions, give better yields and are disease resistant. It also aims to develop plants with high levels of desirable nutrients.
Question 20. Isinglass is a product obtained from
  1.    Some snakes
  2.    Some fishes
  3.    Some aves
  4.    None of these
 Discuss Question
Answer: Option B. -> Some fishes
:
B
Isinglass is a gelatinous substance obtained from the dried swim bladders of fish. It is a form of collagen used mainly for the clarification or fining of some beer and wine. It can also be cooked into a paste for specialised gluing purposes. It is used for making certain cements, jellies.

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