NEET Biology Solved Question Paper 2009

Multiple Choice Questions

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Which of the following has multiflagellate sperms?

  • Equisetum

  • Riccia

  • Lycopodium

  • Anthoceros

A.

Equisetum

In Equisetum, the anterior part of the antherozoid (sperm) is spirally coiled and has numerous flagella, whereas posterior part is somewhat expanded. The sperms of Lycopodium, Riccia and Anthoceros are biflagellated.

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    Stomata open or close due to the ion

    • Ca2+

    • Na+

    • K+

    • Cu+

    Answer

    Internodal elongation is stimulated by

    • auxin

    • cytokinin

    • gibberellin

    • phenol

    Answer

    Flash of light in dark inhibits flnwering in

    • SDP

    • LDP

    • LSDP

    • DNP

    Answer

    Which of the following induces and promotes cell division?

    • ABA

    • Auxin

    • Cytokinin

    • Gibberellin

    Answer
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    Wilting of leaves at noon and their recovery toward evening is known as

    • incipient wilting

    • temporary wilting

    • midday desiccation

    • permanent wilting

    Answer

    In the electron transport chain, in terminal oxidation, the cytochrome, which donates electrons to O2 is

    • cytochrome- b 

    • cytochrome- c

    • cytochrome- a3

    • cytochrome- a

    Answer

    The specific character of C4  plants is

    • bulliform cells

    • Kranz anatomy

    • parallel venation

    • isobilateral leaf

    Answer

    Artificial application of auxins like IAA, IBA and NAA to unpollinated pistils can form

    • fruits with much flash

    • larger fruits

    • sweet fruits

    • seedless fruits

    Answer
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    Which of the following clogs the cavity of the xylem vessels?

    • Tylosis

    • Cystolith

    • Hydathode

    • Raphide

    Answer