Chemical Coordination in Plants Welcome to your Chemical Coordination in Plants 1. Which one of the following pairs is not correctly matched? IAA - Cell wall elongation Abscisic acid - Stomatal closure Gibberellic acid - Leaf fall Cytokinin - Cell division2. The phytohormone that helps in the germination of seeds is Cytokinin Auxin ABA Gibberellin3. Internodal elongation is associated with Auxin ABA Cytokinin Gibberellin4. Which of the following regulate closure of stomata? Bromic acid ABA Auxins Cytokinin5. Positive geotropism is exhibited by Stem Shoot Leaves Root6. Cell division in plants is promoted by Gibberellin Cytokinin ABA Ethylene7. To increase sugar production in sugarcanes, they are sprayed with ABA IAA Cytokinin Gibberellin8. A plant hormone for inducing Morphogenesis in plant tissue culture is Gibberellin Ethylene Cytokinin Abscisic acid9. The hormone responsible for phototropism and geotropism is Auxin Starch Gibberellin Enzyme10. One of the synthetic auxin is IBA GA IAA NAA11. The phytohormone that prevents the germination of seeds is Auxin Cytokinin Abscisic acid Gibberellin12. Which of the following is not an effect of ethylene? Hastens fruit ripening Promotes senescence and abscission of plant organs Helps to overcome apical dominance Breaks seed and bud dormancy13. A phytohormone existing in gaseous state is Ethylene Auxin Abscisic acid Cytokinin14. Ethylene is used for Both hastening of ripening of fruits and slowing down ripening of apples Slowing down ripening of apples Hastening of ripening of fruits Retarding ripening of tomatoes15. A plant hormone related with inhibition of senescence is Gibberellin Bromic acid Ethylene ABA16 out of 15Please fill in the comment box below.
