Chemical Coordination in Plants Welcome to your Chemical Coordination in Plants 1. Which one of the following pairs is not correctly matched? Cytokinin - Cell division IAA - Cell wall elongation Gibberellic acid - Leaf fall Abscisic acid - Stomatal closure2. Ethylene is used for Slowing down ripening of apples Both hastening of ripening of fruits and slowing down ripening of apples Retarding ripening of tomatoes Hastening of ripening of fruits3. The phytohormone that prevents the germination of seeds is Auxin Gibberellin Abscisic acid Cytokinin4. Which of the following is not an effect of ethylene? Hastens fruit ripening Breaks seed and bud dormancy Helps to overcome apical dominance Promotes senescence and abscission of plant organs5. One of the synthetic auxin is IBA IAA NAA GA6. Internodal elongation is associated with Auxin Cytokinin ABA Gibberellin7. A plant hormone related with inhibition of senescence is Ethylene Gibberellin Bromic acid ABA8. The hormone responsible for phototropism and geotropism is Enzyme Gibberellin Starch Auxin9. Which of the following regulate closure of stomata? Cytokinin ABA Bromic acid Auxins10. Positive geotropism is exhibited by Leaves Shoot Stem Root11. A plant hormone for inducing Morphogenesis in plant tissue culture is Cytokinin Gibberellin Abscisic acid Ethylene12. The phytohormone that helps in the germination of seeds is Gibberellin Auxin Cytokinin ABA13. Cell division in plants is promoted by ABA Ethylene Cytokinin Gibberellin14. To increase sugar production in sugarcanes, they are sprayed with Cytokinin Gibberellin IAA ABA15. A phytohormone existing in gaseous state is Abscisic acid Cytokinin Ethylene Auxin16 out of 15Please fill in the comment box below.
