TET Class 12 Science Solved Question Paper 2018

Multiple Choice Questions

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Which one of the following is not a natural fibre?

  • Silk

  • Acrylic

  • Cotton

  • Jute

B.

Acrylic

Natural fibres are those which are obtained from the plants or animals. Silk, cotton and jute are examples of natural fibre. Whereas Acrylic is not a natural fibre, chemically it is polymethyl methacrylate. Acrylic is used since it has good resistance to stains, chemicals, insects and fungi.

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    Which of the following is not a micronutrient?

    • Sodium

    • Copper

    • Silicon

    • Calcium

    Answer

    The element, essential for synthesis of protein in plants, is

    • copper

    • nitrogen

    • magnesium

    • iron

    Answer

    Penicillin antibiotic is obtained from

    • fungi

    • algae

    • bacteria

    • blue-green algae

    Answer

    True fruits develop from

    • thalamus

    • petal

    • ovary

    • sepal

    Answer
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    Which one of the following is not a non-communicable disease?

    • Hypertension

    • Arthritis

    • Rickets

    • Cholera

    Answer

    Which one of the following is not a source of energy?

    • Protein

    • Fat

    • Vitamin

    • Carbohydrate

    Answer

    The coding segment of DNA is called

    • muton

    • intron

    • codon

    • exon

    Answer

    Ginger is the modification of

    • root

    • leaf

    • stem

    • fruit

    Answer
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    Plant which reproduces by means of spores instead of seeds is

    • coriander

    • fern

    • mustard

    • petunia

    Answer