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Statement a. Auxins promote apical domin...

Statement a. Auxins promote apical dominance by suppressing activity of lateral buds.
Statement b. In moricultrue, periodic pruning of shoot tips is done to make Mulberry plants bushy.

A

a and b correct with a being reason for b

B

a is correct, b is wrong

C

a is wrong, b is correct

D

Both a and b correct but a is not reason for b.

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The correct Answer is:
D
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Assertion: Auxins promote apical dominance by suppressing the activeity of lateral buds. Reason : In Moriculture , periodic pruning of shoot tips is done to make mulberry plants bushy.

Auxin promotes the apical dominance whereas it is counteracted by_Complete the statement by choosing the correct option

Read the given statements about auxins and state whether they are true or false : a. Auxin promotes apical dominance. b. Auxins have a negative impact on cytokinin levels. c. F.W went isolated auxins from the coleoptiles of the coleptiles of the oat plant. d. Auxin promotes flowering in the pineapple plants.

Consider the following statements . Apical dominance in plants I. Allows plant growth II. Regards the growth of lateral buds III. Which of these statements is /are correct ? Which of these statement is / are correct ?

(i) Promote nutrient mobilisation (ii) Overcome the apical dominance (iii) Lateral shoot growth All the above physiological effects are related to which of the following plant growth regulators?

Which statements are correct ? a - Cytokinins suppress the synthesis of chlorophyll b - Auxins control apical dominance c - Gibberellins promote shoot elongation d - Abscisic acid enables seeds to with-stand desiccation.

Select the incorrect statement/s : (A) Root apical meristem and shoot apical meristem are responsible for the secondary growth of the plants (B) Root apical meristem and shoot apical meristem contribute to increasing girth of the plant organs (C) In dicotyledonous plants and gymnosperms the lateral meristems, vascular cambium and cork cambium contribute to the elongation of the plant organs in which they are active (D) The development is the sum of growth and differentiation

Read the following statements. Statement A: Jurassic period of Mesozoic era is characterised by gymnosperms as dominant plants and dinosaurs as dominant animals.Statement B: The geological history of earth closely correlates with the biological history of earth.

How many of the given statements are correct w.r.t meristmatic tissues? A. The meristems which occur at the tips of roots and shoots are primary meristems. B. Some cells 'left behind ' from the shoot apical meristem constitutes the accessory bud. C. Cork cambium is responsible for producing secondary tissues. D. The process of formation of structurally and functionally specialised cells is known as dedifferentiation. E. The intercalary meristem occurs in grasses and regenerates parts removed by grazing herbivore. F. Interfascicular cambium and fascicular vascular cambium are absent in woody plant axis.

DINESH PUBLICATION-Plant Growth and Movements-RQ
  1. Growth promoting hormone is

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  2. Find the correct statements 1. Causal organism of foolish seedling d...

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  3. Statement a. Auxins promote apical dominance by suppressing activity o...

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  4. Ethylene is metabolic product of

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  5. Which one is derivative of a carotenoid

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  6. Exponential growth occur in

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  7. In signoid growth curve, upper asymptote represents period of

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  8. Discovery of gibberellin is related to

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  9. Match the following and chose the correct combination {:(, "Column...

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  10. Find the correct combination (A) DCMU ………Herbicide…….Inhibitor of n...

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  11. Identify two physiological process induced by two different phytoharmo...

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  12. Choose the correct sequence of stages of growth curve for bacteria

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  13. Biennials get changed into annuals by

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  14. The process of vernalisation is

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  15. A plant growing in complete darkness shows

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  16. Ageing of leaves and shoots is called

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  17. Which one of the following synthetic growth regulators is used to prom...

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  18. Which one the following plant function is not generally governed or co...

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  19. Response of plants due to reversibole turgor change in pulvinus as a r...

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  20. Cytokinins which have specific effect in cytokinesis are modified form...

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