Chemical Coordination in Plants Welcome to your Chemical Coordination in Plants 1. A plant hormone for inducing Morphogenesis in plant tissue culture is Cytokinin Abscisic acid Ethylene Gibberellin2. Cell division in plants is promoted by ABA Cytokinin Ethylene Gibberellin3. A plant hormone related with inhibition of senescence is Gibberellin Ethylene ABA Bromic acid4. The phytohormone that prevents the germination of seeds is Abscisic acid Auxin Cytokinin Gibberellin5. Positive geotropism is exhibited by Stem Shoot Root Leaves6. One of the synthetic auxin is NAA IAA IBA GA7. Which of the following regulate closure of stomata? ABA Cytokinin Bromic acid Auxins8. Which one of the following pairs is not correctly matched? Abscisic acid - Stomatal closure IAA - Cell wall elongation Cytokinin - Cell division Gibberellic acid - Leaf fall9. Internodal elongation is associated with Gibberellin ABA Auxin Cytokinin10. A phytohormone existing in gaseous state is Abscisic acid Cytokinin Ethylene Auxin11. Ethylene is used for Retarding ripening of tomatoes Both hastening of ripening of fruits and slowing down ripening of apples Hastening of ripening of fruits Slowing down ripening of apples12. Which of the following is not an effect of ethylene? Breaks seed and bud dormancy Promotes senescence and abscission of plant organs Hastens fruit ripening Helps to overcome apical dominance13. The phytohormone that helps in the germination of seeds is Gibberellin Cytokinin Auxin ABA14. The hormone responsible for phototropism and geotropism is Gibberellin Enzyme Starch Auxin15. To increase sugar production in sugarcanes, they are sprayed with Cytokinin IAA ABA Gibberellin16 out of 15Please fill in the comment box below.