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NEET - 2019 Previous Year Questions



NEET Biology Previous Year Questions - 2019

Which of the following protocols did aim for reducing emission of chloroflurocarbons into the atmosphere?

[class-xii ]

  • Geneva Protocol
  • Gothenburg Protocol
  • Kyoto protocol
  • Montreal protocol
  • Correct Option: D  [ Montreal protocol ]

    Remark:

Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?

[class-xii ]

  • BOD incubator
  • Bioreactor
  • Sludge digester
  • Industrial oven
  • Correct Option: B  [ Bioreactor ]

    Remark:

Which of these following methods is the most suitable for disposal of nuclear waste?

[class-xii ]

  • Burry the waste within rocks deep below the Earth's surface
  • Dump the waste within rocks under deep ocean
  • Bury the waste under Antarctic ice-cover
  • Shoot the waste into space
  • Correct Option: A  [ Burry the waste within rocks deep below the Earth's surface ]

    Remark:

Which of the following pairs of gases is mainly responsible for green house effect?

[class-xii ]

  • Carbon dioxide and Methane
  • Nitrogen and Sulphur dioxide
  • Oxygen and Nitrogen
  • Ozone and Ammonia
  • Correct Option: A  [ Carbon dioxide and Methane ]

    Remark:

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:

[class-xii ]

  • making tubes and pipes
  • construction of roads
  • use as a fertilizer
  • making plastic sacks
  • Correct Option: B  [ construction of roads ]

    Remark:

Which of the following in true for Golden rice?

[class-xii ]

  • It has yellow grains, because of a gene introduced from a primitive variety of rice
  • It is drought tolerant, developed using Agrobacterium vector
  • It is pest resistant, with a gene from Bacillus thuringiensis
  • It is Vitamin A enriched, with a gene from daffodil
  • Correct Option: D  [ It is Vitamin A enriched, with a gene from daffodil ]

    Remark:

Which of the following sexually transmitted diseases is not completely curable?

[class-xii ]

  • Chlamydiasis
  • Genital herpes
  • Genital warts
  • Gonorrhoea
  • Correct Option: B  [ Genital herpes ]

    Remark:

Which of the following statements is not correct?

[class-xi ]

  • Lysosomes have numerous hydrolytic enzymes.
  • The hydrolytic enzymes of lysosomes are active under acidic pH.
  • Lysosomes are membrane bound structures.
  • Lysosomes are formed by the process of packaging in the endoplasmic reticulum.
  • Correct Option: D  [ Lysosomes are formed by the process of packaging in the endoplasmic reticulum. ]

    Remark:

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:

[class-xii ]

  • Liverworts
  • Pteridophytes
  • Mosses
  • Gymnosperms
  • Correct Option: B  [ Pteridophytes ]

    Remark:

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:

[class-xi ]

  • Hexokinase
  • Aldolase
  • Enolase
  • Phosphofructokinase
  • Correct Option: A  [ Hexokinase ]

    Remark: