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Biology Test 206

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Biology Test 206
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  • Question 1
    4 / -1

    How many of the following statements are correct ?

    (a) Enzymes are highly specific to substrate

    (b) Enzymes require optimum temperature and pH for maximum activity.

    (c) Almost all enzymes are protein

    (d) Enzyme increase the activation energy

  • Question 2
    4 / -1

    Formation of Auxin take place in the presence of .........

  • Question 3
    4 / -1

    Which of the plant hormone hinders the stomatal opening mechanism ?

  • Question 4
    4 / -1

    The fruits can be left on the tree longer so as to extend the market period. This is due to which function of GA ?

  • Question 5
    4 / -1

    Represented below are the two phenomena in plants. Among the following two phenomena (a) and (b) which phenomena is widely applied in tea plantation?

  • Question 6
    4 / -1

    Two cytokinins are kinetin and zeatin. What is the difference between two ?

  • Question 7
    4 / -1

    Directions For Questions

    Consider the following four statements (a-d) and select the option which includes all the incorrect ones only :-

    (a) PGR, which is used to speed up the malting process, also promotes internode elongation just prior to flowering in cabbage

    (b) PGR, which is called stress hormone, acts as an general plant growth inhibitor.
    (c) In most higher plants, the growing apical bud inhibits the growth of the axillary bud. This phenomenon is called decapitation.

    (d) PGR ethylene could fit either of the groups (promoter or inhibitor), but it is largely a promoter of growth activities 

    ...view full instructions

    Options :-

  • Question 8
    4 / -1

    Bolting hormone is :-

  • Question 9
    4 / -1

    Gibberellic acid induce the flowering in :-

  • Question 10
    4 / -1

    The most of physiological process in plants occurs due to synthesis of which form of phytochrome ?

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