Home
Class 11
BIOLOGY
Read the given statements to identify th...

Read the given statements to identify the phytohormone that performs these functions.
(i) Horizontal growth of seedlings, swelling of the axis and apical hook formation in dicot seedlings.
(ii) Promoting senescence and abscission of leaves and flowers.
(iii) Breaking seed and bud dormancy.
(iv) Initiating germination in peanut seeds.
(v) Sprouting of potato tubers.

A

ABA

B

Ethylene

C

GA

D

Cytokinins

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NCERT FINGERTIPS|Exercise Photosynthesis In Higher Plants|136 Videos

  • PLANT KINGDOM

    NCERT FINGERTIPS|Exercise Plant Kingdom|160 Videos

Similar Questions

Explore conceptually related problems

The following statements are given about different plant growth hormones : I. Cytokinin suppresses the synthesis of chlorophyll. II. Auxins control apical dominance. III. Gibberellins promote shoot elongation. IV. Abscisic acid enables seeds to withstand desication. Which of the above statements are correct?

Identify the correct statement/s of the following regarding the role of ethylene A) Promotes root growth and Root hair formation B) Initiates seed germination in peanut seeds C) To initiate flowering and for synchronising fruit set in pineapples D) Induces flowering in mango

Knowledge Check

  • Read the given statements and select the option that correctly identifies the incorrect ones. (i) Cytokinin is primarily concerned with cell division. (ii) C_(2)H_(4) breaks seed and bud dormancy (iii) ABA stimulates the opening of stomata. (iv) C_(2)H_(4) initiates germination in peanut seeds, sprouting of potato tubers. (v) ABA is synergistic to GA.

    A
    (i),(ii) and (iv)
    B
    (iii) and (ii)
    C
    (iii) and (v)
    D
    (iv) and (v)

  • Read the given statements and identify the plant hormones X,Y and Z. (i) Hormone Y induces flowering in mango and also promotes rapid internode/petiole elongation in deep water rice plants and hence helping leaves or upper part of shoot to remain above water. (ii) Hormone X promotes root growth and root hair formation. (iii) Hormone Z inhibits the seed germination, increases the tolerance of plant to various stresses, play important role in seed development, maturation and dormancy.

    A
    `Y-ABA, X-"Auxin", Z-GA`
    B
    `Y-C_(2)H_(4)X - "Auxin", Z - GA`
    C
    `Y-"Auxin", X-C_(2)H_(4),Z - GA`
    D
    `Y-C_(2)H_(4),X - C_(2)H_(4),Z - ABA`

  • I. Cytokinin is primarily concerned with cell division II. C_2 H_4 breaks seed and bud dormany III. ABA stimulates the opening of stomata IV. C_2 H_4 initiates germination in peanut seeds, sprouting of potato tubers V. ABA is synergistic to GA The false statement is -

    A
    I, II, IV
    B
    III, V
    C
    III, IV
    D
    IV, V

    • Similar Questions

    Explore conceptually related problems

    I. C_2 H_4 promotes leaf senescence II. CH_4 Speeds the ripening of fruits III. C_2 H_4 causes apical hook formation IV. C_2 H_4 promotes horizontal growth of seedling and swelling of axis V. C_2 H_4 promotes male flowers in cucumber thereby increasing the yield Which one is false?

    Read the following matches (i) Auxins - Promotes abscission of older mature leaves and fruits (ii) Gibberellins - Stimulation of internodal growth (iii) Abscisic acid - Stops cambial activity (iv) Ethylene-Induces seed & bud dormancy Which of these are correct

    (I) C_(2)H_(4) promotes leaf senescence. (II) C_(2)H_(4) speeds the ripening of fruits. (III) C_(2)H_(4) causes apical hook formation. (IV) C_(2)H_(4) promotes horizontal growth of seedling and swelling of axis (V) C_(2)H_(4) romotes male flowers in cucumber, thereby increasing the yield Which one is false ?

    Read the statements about ethylene given below and select the statements that are correct. a. Ethylene is a simple gaseous PGR. b. Ethylene breaks seed & bud dormancy. c. Ethylene is used to initiate flowering . d. Ethylene promotes root growth & root hair formation .

    Functions of plant growth promoters and plant growth inhibitros are given here in a jumbled up manner. Select the option that correctly segregates these functions. (i) Cell division (ii) Cell enlargement (iii) Pattern formation (iv) Tropic growth (v) Flowering (vi) Fruiting (viii) Seed germination (viii) Response to wounding (ix) Response to stresses of biotic and abiotic origin (x) Dormancy

    Home
    Profile