TET Class 12 Science Solved Question Paper 2018

Multiple Choice Questions

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Ginger is the modification of

  • root

  • leaf

  • stem

  • fruit

C.

stem

Ginger is an underground stem. It has nodes, internodes and the axillary bud. It gets modified to store food. As it remains buried underground in soil, it also saves a plant from adverse climatic conditions. Thus, it is also a perennating structure and forms a new plant, when favourable conditions set in.

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    True fruits develop from

    • thalamus

    • petal

    • ovary

    • sepal

    Answer

    Which one of the following is not a natural fibre?

    • Silk

    • Acrylic

    • Cotton

    • Jute

    Answer

    Penicillin antibiotic is obtained from

    • fungi

    • algae

    • bacteria

    • blue-green algae

    Answer

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

    • Protein

    • Fat

    • Vitamin

    • Carbohydrate

    Answer
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    Which of the following is not a micronutrient?

    • Sodium

    • Copper

    • Silicon

    • Calcium

    Answer

    The coding segment of DNA is called

    • muton

    • intron

    • codon

    • exon

    Answer

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

    • copper

    • nitrogen

    • magnesium

    • iron

    Answer

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

    • Hypertension

    • Arthritis

    • Rickets

    • Cholera

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

    • coriander

    • fern

    • mustard

    • petunia

    Answer