Chemical Coordination in Plants Welcome to your Chemical Coordination in Plants 1. A phytohormone existing in gaseous state is Ethylene Abscisic acid Cytokinin Auxin2. Cell division in plants is promoted by Cytokinin Gibberellin Ethylene ABA3. The hormone responsible for phototropism and geotropism is Gibberellin Enzyme Auxin Starch4. The phytohormone that helps in the germination of seeds is Auxin Cytokinin ABA Gibberellin5. Which of the following is not an effect of ethylene? Promotes senescence and abscission of plant organs Breaks seed and bud dormancy Hastens fruit ripening Helps to overcome apical dominance6. One of the synthetic auxin is NAA GA IBA IAA7. Which of the following regulate closure of stomata? ABA Cytokinin Bromic acid Auxins8. Ethylene is used for Retarding ripening of tomatoes Both hastening of ripening of fruits and slowing down ripening of apples Slowing down ripening of apples Hastening of ripening of fruits9. Internodal elongation is associated with ABA Gibberellin Auxin Cytokinin10. Which one of the following pairs is not correctly matched? IAA - Cell wall elongation Gibberellic acid - Leaf fall Cytokinin - Cell division Abscisic acid - Stomatal closure11. To increase sugar production in sugarcanes, they are sprayed with IAA Cytokinin Gibberellin ABA12. Positive geotropism is exhibited by Root Leaves Stem Shoot13. A plant hormone for inducing Morphogenesis in plant tissue culture is Gibberellin Abscisic acid Ethylene Cytokinin14. The phytohormone that prevents the germination of seeds is Cytokinin Auxin Abscisic acid Gibberellin15. A plant hormone related with inhibition of senescence is Ethylene ABA Bromic acid Gibberellin16 out of 15Please fill in the comment box below.
