/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 13 : Plant Growth and Development This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 Which growth curve is characteristic of living organisms? Sigmoid Linear Exponential J Constant 2 / 10 Cytokinins are naturally synthesized in: Leaves Stem tip Flower petals Root apices 3 / 10 Example of a differentiated water-conducting cell Xylem parenchyma Phloem fibre Companion cell Tracheary element 4 / 10 Cells with lignified walls, dead at maturity are products of Differentiation Dedifferentiation Redifferentiation Mutation 5 / 10 Growth rate refers to Decrease per unit time Increase per unit time Cell death per unit time Water loss per unit time 6 / 10 Who first observed phototropism in canary grass coleoptiles? F.W. Went Kurosawa Darwin & Francis Miller 7 / 10 Cells at tip of root apex become Guard cells Xylem vessels Cork Root cap 8 / 10 Oxygen is essential for plant growth because Needed for protein synthesis Provides light Releases energy through respiration Produces chlorophyll 9 / 10 Which of the following is an indole compound PGR? Cytokinin Gibberellic acid Indole-3-acetic acid Abscisic acid 10 / 10 Which PGR combination controls apical dominance? Auxin and cytokinin Ethylene and GA ABA and GA Cytokinin and ABA Your score is 0% Restart quiz
