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MHT-CET Enhancement of Food Production — practice questions — page 2

Explore 57 free Enhancement of Food Production questions in MHT-CET Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Enhancement of Food Production questions and exercises with answers

Showing questions 31–57 of 57.

SCP develops when microbes ferment which kind of material?Read the answer and worked solution →Contaminating microbes in SCP cultures may produce which toxins?Read the answer and worked solution →In BP's 1960s process, yeast was fed on which refinery byproduct?Read the answer and worked solution →Diazotrophic bacteria used for SCP can fix which gas from air?Read the answer and worked solution →Growth of tissues or cells in an artificial medium away from the parent organism isRead the answer and worked solution →The ability of a single plant cell to grow into a whole plant is calledRead the answer and worked solution →Who first pointed out the possibilities of culturing isolated plant tissues?Read the answer and worked solution →Adding growth hormones to the medium can make callus cells formRead the answer and worked solution →What is the main advantage of propagating plants by tissue culture?Read the answer and worked solution →In 1907 Harrison grew frog embryonic nerve cells in which medium?Read the answer and worked solution →Which is an application of animal cell culture?Read the answer and worked solution →Stem cells can differentiate into about how many cell types of the human body?Read the answer and worked solution →Which trait is selected against when breeding farm animals?Read the answer and worked solution →Which cattle type is specialised to give large quantities of milk?Read the answer and worked solution →Which technique lets dairy farmers select a bull's genes without keeping the bull?Read the answer and worked solution →In zero grazing, the cow isRead the answer and worked solution →Intensively reared broilers reach slaughter weight within aboutRead the answer and worked solution →Farming of fish, molluscs, crustaceans and aquatic plants is calledRead the answer and worked solution →What do fish hatcheries supply to fish farms?Read the answer and worked solution →Silkworm larvae reared in sericulture feed on the leaves of which plant?Read the answer and worked solution →Diseases that humans may acquire from animals are calledRead the answer and worked solution →The 1999 Nipah outbreak in Malaysia began with pigs that contactedRead the answer and worked solution →The maintenance of bee colonies in artificial hives is calledRead the answer and worked solution →The honey bees most commonly kept belong to which genus?Read the answer and worked solution →In a honey bee colony, which member is the only egg-layer?Read the answer and worked solution →The queen's unfertilised eggs develop intoRead the answer and worked solution →Before movable comb hives, harvesting honey often led toRead the answer and worked solution →

Worked practice questions

SCP develops when microbes ferment which kind of material?

  1. Fresh milk and cream only
  2. Sterile glass beads only
  3. Straw and food-industry wastes
  4. Pure distilled water only
Show answer and solution

Correct answer: C. Straw and food-industry wastes

Microbes grown on wastes such as straw, wood and cannery residues build up protein-rich biomass.

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Contaminating microbes in SCP cultures may produce which toxins?

  1. Mycotoxins
  2. Auxins
  3. Phytoalexins
  4. Antitoxins
Show answer and solution

Correct answer: A. Mycotoxins

Contaminants can make toxins such as mycotoxins or cyanotoxins, so contamination must be controlled.

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In BP's 1960s process, yeast was fed on which refinery byproduct?

  1. Cheese whey
  2. Sugarcane bagasse
  3. Waxy n-paraffins
  4. Beet molasses
Show answer and solution

Correct answer: C. Waxy n-paraffins

The proteins-from-oil process grew yeast on waxy n-paraffins left over from oil refining.

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